NTK2 Flashcards
Small Cell Lung Ca
Smoking
Centrally located
ACTH
SIADH
chemo/radiation
less than 1 year old
bilateral symmetrical limb jerking
not generalized
no fever
dx?
imaging?
tx?
associated condition?
infantile spasm
EEG interictal
tx: ACTH
can be associated with tuberous sclerosis
Narcolepsy associated with low CSF levels of what?
orexin-a, hypocretin-1
UNa and FeNa in pre-renal azotemia
UNa <20
FeNa <1%
why? - usually d/t hypotension = Aldosterone release = Na reabsorption = low UNa and FeNa
Indications for bacterial endocarditis prophylaxis
prosthetic heart valve previous IE structural abnormality in TRANSPLANTED heart unrepaired cyanotic CHD repaired CHD with residual defect
Thready pulses that disappear with inspiration
pulsus paradoxus
cardiac tamponade
Characteristics of tuberculous effusions
very high protein levels (>4)
lymphocytic leukocytosis
low glucose
gallbladder wall - bluish color and brittle consistency
procelain gallbladder
gallbladder adenocarcinoma
Physical exam findings of aortic stenosis
pulsus parvus et tardus (diminished and elayed)
mid to late peaking systolic murmur
soft and single second heart sound S2
When do you add IV K with DKA
serum K less than or equal to 5.2
Right to Left shunts in peds (2)
Tetralogy
Transposition
cyanotic babies right away
Wilms tumor vs Neuroblastoma
WT - unilateral - 2 to 5 years old
Neuro - crosses midline - usually younger
What has been proven to prolong survival in COPD patients?
What hasn’t?
long term home oxygen therapy
vaccinations against influenza and pneumococcus
best preventive therapy for migraine
propranolol
Anti-social personality disorder diagnosed after what age?
18
with symptoms of conduct disorder beginning before age 15
Is metronidazole teratogenic?
No
Retinoblastoma is associated with what bone tumor?
osteosarcoma
spike differentiation between multiple myeloma and waldenstroms
waldenstroms is IgM specifically
MM - produces monoclonal IgG, IgA, or light chains
What electrolyte abnormality can occur with folate/B12 replenishment?
Hypokalemia
due to high cell production
Measles long term risk?
subacute sclerosing panencephalitis
most common pathogen of bartholin abscess
E. coli
MCC of bacterial tracheitis
staph aureus
Common murmur in infective endocarditis
Tricuspid regurgitation
Increases on inspiration
MCC of euvolemic hyponatremia
Pseudo (hyperglycemia)
Psychogenic polydipsia
Hypothyroid
SIADH
Target of Myasthenia graves
Lambert eaton
Post synaptic acetyl choline receptors
Pre synaptic Calcium channels
3 main causes of hyperbilirubinemia
pre-hepatic
intrahepatic
posthepatic
Biphasic stridor in an infant =
Vascular rings
vs
Laryngomalacia = INSPIRATORY stridor
Watery conjunctivitis 5 to 14 days after delivery
CHLAMYDIAL
two types of macular degeneration
dry - slow progressive, bilateral
wet - unilateral, aggressive
Triad of wisckott-aldrich
eczema
decreased platelets
infections
Cancers with VHL
hemangioblastoma
Clear cell renal carcinoma
Pheo
Measles = ?
infectious agent?
Prodrome?
fever and rash - timing and spread?
Rubeola
measles virus
rash on face - spreads to body (clears opposite direction)
Fever and rash at same time
Cough, Coryza, COnjunctivitis, Kopliks
What joints are NEVER involved in RA?
DIP’s
Effect of formula feeding on gastric emptying
Decreases it
Can be related to pyloric stenosis
what can differentiate transient synovitis from Legg-Calves-Perthes in a young boy who is of normal BMI?
length of pain
Months for LCP vs Up to 4 weeks for Transient synovitis
VSD murmur can be heard
Left Lower sternal border
Holosystolic
With increasing prevalence what happens to PPV?
increases
Natalizumab is associated with development of?
progressive multifocal leukoencephalopathy
What medications are associated with possibility of slowing progression of parkinsonism
MAO-B inhibitors
Ulcerative colitis associated with what gall bladder condition?
Primary sclerosing cholangitis
can have + p-ANCA
Primary adrenal insufficiency mcc?
significance of symptoms?
Autoimmune
more severe symptoms - hyperpigmentation, hypotension, hyperkalemia
Transposition of the great vessels associated with what maternal condition?
diabetes mellitus
Imiquimod
Locally applied immunostimulant
Leads to sloughing off of skin
Warts, BCC, actinic keratosis
Refractory cases of CLL tx
Cyclophosphamide
Cushing Syndrome
Initial work up tests (3)
24 hour urinary free cortisol
Late night salivary cortisol
Low dose dexamethasone suppression
High iron =
Sideroblastic anemia
alcoholic induced commonly
Triple or quad screen done when?
15-20 weeks
How logn does it take for cholestasis to develop with parenteral nutrition?
2 weeks or more
Anaphylactic egg allergy - which vaccine cannot be given?
Yellow fever
when can PUBS be done?
between 20 and 34 weeks gestation
benefit - can transfuse
Mild cases of CLL in the elderly tx?
Chlorambucil
intraplacental villous lakes
irregular placent
Placenta accreta
mechanism of decreased renal blood flow in hepatorenal syndrome
increased nitric oxide generation in splanchnic circulation secondary to portal HTN
NO reduces peripheral vascular resistance and blood pressure = decreased renal perfusion
3rd gen cephalosporins
ceftriaxone and cefotaxime
Complex vs simple seizures?
Complex = LOSS OF CONSCIOUSNESS
Where is Broca’s area located?
other associated findings with stroke?
posterior inferior FRONTAL lobe gyrus
DOMINANT side
right hemiparesis (face and upper limb)
Increasing pain, worsens at night
Relieved by NSAID’s
Osteoid osteoma
Ending -navir =?
Main adverse effect
Protease inhibitors
Hyperlipidemia, hyperglycemia
Carcinoid of the lungs
serotonin syndrome
5-HIAA in the URINE
Meds for Wolff Parkinson White
Procainamide or Ibutilide
Uncommon but specific sign of Graves Disease
digital clubbing thyroid acropathy
Specific therapy for hereditary angioedema
Ecallantide
What immunodeficiency may be associated with false negative serologic studies in celiac patients?
Selective IgA deficiency
Meckels is a remnant of what?
vitelline duct
Aldolase B deficiency =
hereditary fructose intolerance
three common causes of hyponatremia with hypervolemia
CHF
Nephrotic syndrome
Cirrhosis
Leuprolide
MOA?
GnRH agonist
given continuously suppresses estrogen
What is increased with both folate and B12 deficiency?
Homocysteine
delayed separation of cord + infections without pus?
Leukocyte adhesion deficiency
What RDW is associated with iron deficiency anemia?
> 20%
Treatment for chlamydial conjunctivits
ORAL erythromycin
Which source of vaginitis requires both partners to be treated?
Trichomonas
IgA nephropathy affects what part of the kidney?
glomerulus
Osteoarthritis is not associated with what type of anemia?
Anemia of chronic disease
Treatment of hyponatremia is based on?
Symptom severity (NOT the Na level)
Treatment for GBS
IVIG
OR
Plasmapharesis
NOT BOTH
firm hyperpigmented nodule
dimples in the center when pinched
dermatofibroma
Aplastic Anemia vs Aplastic crisis
Anemia = PANcytopenia
Crisis = ERYTHROpenia
RTA has positive or negative UAG?
Positive
Scabies treatment
Permethrin and Lindane
Treatment for Pertussis
erythromycin
4 of the most common complications of EPO therapy
Worsening of HTN
Headaches
Flu like syndrome
Red cell aplasia
Early decrescendo diastolic murmur
left sternal boarder (3rd/4th IC space)
with patient sitting up, leaning forward, and holding breath in full expiration
Aortic regurgitation
most commonly due to bicuspid aortic valve in the developed world
Increased Methylmalonic acid is associated with?
B12 deficiency
normal with folate
Complete androgen insensitivity syndrome
genetically male, phenotypically female
Cryptorchid testes
Orchiectomy after puberty
3 p’s of Mccune Albright
Precocious puberty
Pigmented spots
Polyostotic fibrous dysplasia
treatment for a-fib with RVR
beta blocker
diltiazem
digoxin
does long term use of OCP’s decrease breast cancer risk?
no , slight increase
Treatment options for non-ICU community acquired pneumonia
Fluoroquinolone
OR
Beta-lactam + Macrolide
what does mixed venous oxygen saturation tell you?
the amount of oxygen being extracted by tissues
flutamide mechanism of action
androgen blockade by binding to dihydrotestosterone receptors
Sevelamer and Lanthanum are?
phosphate binders
Diarrhea has positive or negative UAG?
Negative
Condyloma lata =
Condyloma acuminata =
Syphilis
Genital warts
When is post op atelectasis most comm?
Days 2-3
Renal changes in pregnancy
Increased risk of pyelonephritis
Increased GFR
Decreased BUN/creatinine
Methanol overdose is associated with what physical exam finding?
inflamed retina
Biliary atresia work up
U/S = no ducts
7 days of phenobarbital
HIDA scan
Patients with primary biliary cirrhosis are at increased risk of developing what?
Osteomalacia
Pulses parvus et tardus associated with what valve abnormality
Aortic stenosis
Accuracy
measures what it is supposed to measure
Periarticular osteopenia is a buzzword for?
Rheumatoid Arthritis
Tolcapone, Entacapone
MOI
COMT inhibitors
block metabolism of dopamine
Parkinsons
Most accurate imaging for adenomyosis?
MRI
Mild, irregular contractions with no cervical change =
braxton-hicks
reassure and send home
Medications that cause Acute interstitial nephritis are same drugs that cause what 4 other conditions?
Drug allergy/rash
Stevens-Johnson Syndrome
Toxic Epidermal Necrolysis
Hemolysis
Oligohydramnios
Single deepest pick of amniotic fluid <2cm or amniotic fluid index <5
MS patient with equivocal or non-diagnostic MRI
look for?
oligoclonal bands in CSF
not SPECIFIC to MS
what diuretic is associated with ototoxicity?
furosemide
damages hair cells of cochlea
Most commonly injured bronchus in chest trauma
Right main
RARE
SNRI’s
Venlafaxine
Desvenlafaxine
Duloxetine
what pharmacotherapy can be given with subarachnoid hemorrhage
CCB to prevent subsequent ischemic stroke from vasospasm
Phenytoin for seizure prophylaxis
preemie + GI bleed + air under diaphragm or pneumatosis intestinalis
NEC
NPO, IVF, TPN, IV abx
Common causes of priapism
Sickle cell Leukemia Perineal or genital trauma neurogenic lesions meds - trazodone and prazosin
Adrenal medulla produces?
catecholamines
Swelling limited to surface of one cranial bone
cephalohematoma
caput crosses suture lines
Most common cause of labial fusion
21-B Hydroxylase deficiency
TInea capitis vs seborrheic dermatitis
TC doesn’t involve face, nasolabial folds, or eyebrows
Tx to prevent renal failure from tumor lysis
allopurinol
hydration
rasburicase
Three most common underlying causes of addisons
Autoimmune
TB
Anterior pituitary
Severe features for pre eclampsia
SBP >160 or DBP >110
Thrombocytopenia
Creatinine elevation
Elevated LFT’s
Pulmonary edema
Visual or cerebral symptoms
Which treatment for graves can cause worsening ophthalmopathy
Radioactive iodine
Due to increase in thyroid receptor antibodies
Male child
Decreased or absent tonsils, adenoids, lymph nodes, spleen
Brutons agammaglobulinemia
IVIG
dorsal column is responsible for?
vibration and proprioception
includes fasciculus cuneatus and fasciculus gracilis
posterior spinal artery
Sickle cell trait commonly results in ?
inability to concentrate urine
Hemodynamics in Septic shock
RA pressure PCWP cardiac index sVR MVO2
Normal or decreased
Normal or decreased
Increased
Decreased
Increased
3 general steps of bilirubin excretion
Uptake -
Conjugation -
Excretion -
Parkinsonism due to loss of cells where?
Neurotransmitter that is low?
Substantia Nigra
Dopamine
Which skin cancer can cause neuro symptoms due to neural invasion?
Squamous cell
What cell is most distinct abnormality in myelodysplastic syndrome?
Pelger-Huet
Bilobed nucleus
barking, seal like cough
inspiratory wheeze in between
dx?
croup
parainfluenza virus
most frequent type of delusion in delusional disorder
persecutory type
Cells of Hodkgkins?
Reed Sternberg
Owl-eyed cells
Cancers with Lynch Syndrome HNPCC
Colorectal
Endometrial
Ovarian
Treatment for intrauterine fetal demise >24 weeks?
vaginal delivery with labor induction
can be delayed until mother is ready
less than 24 weeks = dilation and evacuation
What milk intake can lead to folate deficiency?
Goats milk
Schizoaffective vs Major depression with psychotic features
Mood symptoms and psychotic symptoms occur together with MDD with psychotic features
Psychotic symptoms persist for >2 weeks by themslves in schizoaffective
Brown Sequard loss of?
pain and temp OPPOSITE SIDE
position and vibratory SAME SIDE
what medication should every stroke patient be given if they aren’t already on it?
Statin
2nd line treatment for Lyme
Treatment for neurologic infxn?
Amoxicillin
IV ceftriaxone
Pinworm =
itchy butt
scotch tape test
albendazole
Severe infections in CLL tx
IVIG
Tertiary prevention =
treatment of a given disease
What condition can present with bilateral trigeminal neuralgia
MS
agent of choice for prophylaxis of pasteurella?
amoxicillin/clavulanate
Rotavirus contraindicated in?
individuals with previous intussusception
corkscrew shaped and rightward displaced duodenum +
midgut volvulus
atypical glandular cells on pap smear
next step =
endometrial biopsy
Uric acid and BUN in SIADH are?
low
4 options for emergency contraception?
most effective?
Copper IUD
Ulipristal - antiprogestin
Levonorgestrel - progestin
OCP’s - progestin
Copper IUD most effective
OCP’s least effective for EMERGENCY contraception
Initial pharmacotherapy for pseudotumor cerebri
Acetazolamide
When do children need a renal and bladder ultrasound
with a first UTI between 2 and 24 months
Subacute combined degeneration = ?
loss of?
B12 deficiency or Neurosyphilis
position and vibratory sense
Autoimmune blistering disease
no mucosal involvement
linear IgG deposits on basement membrane
Bullous pemphigoid
when can you do a trans cranial doppler?
over 20 weeks
fetal anemia
increased velocity is a positive test
Exogenous glucocorticoid induced adrenal insufficiency doesn’t have what physical finding?
hyperpigmentation
central deficiency - steroids inhibit ACTH release
What kidney disease is associated with Hodgkin Lymphoma?
Minimal Change Disease
Normal nadir of maternal anemia in pregnancy
Hgb 10/ Hct 30
Reflex iron studies if less
gross hematuria 1 TO 2 DAYS AFTER URI
IgA nephropathy
most accurate test is kidney biopsy
common cause of complex partial seizures
temporal lobe epilepsy
Autoimmune thrombocytopenia or hemolysis in association with CLL tx?
Prednisone
Can you intubate patients with cervical spine trauma?
Yes
Only contraindication is significant facial trauma
what vitamin deficiency may present with hyperemesis gravidarum?
triad?
thiamine deficiency
AMS, ataxia, nystagmus
Cyanosis in an infant relived by crying = ?
Choanal atresia
Pregnant patient and possible DVT
1st step V/Q
Only a NORMAL v/q rules out PE
low probability v/q requires further testing - CT angio
Transudates tend to be high or low protein?
low protein
What infection is associated with membranous nephropathy in children?
Hep B
Graves vs painless thyroiditis
Graves has diffuse iodine uptake
Painless has low uptake
What curious thing occurs with Lymph nodes in Hodkgins?
EtOH causes tenderness
Best initial therapy for warm hemolytic anemia
Prednisone
IVIG if prednisone fails
SN-N-OUT
Sensative test - negative - rules out disease
Don’t use copper IUD as post birth contraception in what class of patients
Hypermenorrhea
Or
Anemic
When to switch to subQ insulin in DKA
able to eat
glucose <200
anion gap <12
serum HCO3 >15
what region of the brain does toxoplasmosis have a preference for?
basal ganglia
When to do C section for labor arrest
> 6 cm dilated
arrested for 4 to 6 hours
high arches, LE wasting, decreased DTR’s
Charcot-Marie-Tooth Disease
EMG
no tx
Normal iron studies =
Thalassemia
CSF findings in Guillain-Barre
Increased protein, normal cell counts
Unconjugated hyperbilirubinemia = patho or physio?
Steps of diagnosis
1, 2, 3, 4
physiologic
- Coombs test
- Hgb level
- low = hemorrhagic
- high = transfusion (twin-twin, delayed clamping) - Retic
- Reabsorption
Contralateral somatosensory and motor deficit FACE, ARM, LEG
Eye deviation toward side of infarct
Aphasia (if dominant hemisphere)
Hemineglect (if non-dominant)
Middle Cerebral artery
Definitive diagnosis of CJD
Brain biopsy
Or
PRNP gene mutations
Type II RTA also known as?
Mechanism of impairment?
common side effect?
Proximal RTA
failure to reabsorb Bicarb in the PCT
osteomalacia (after chronic metabolic acidosis)
give bicarb then test urine
SAAG
subtract peritoneal albumin from serum albumin
ascites source determination
> 1.1 = portal
<1.1 = non-portal
First line treatment for OCD
exposure and response prevention
+/- SSRI
TYPE I RTA is also known as?
Mechanism of impairment?
common side effect?
initial step in work up?
Distal RTA
failure to generate new Bicarb in distal tubule - alkaline urine
nephrocalcinosis
UA for pH >5.5
Topical erythromycin is to prevent?
gonorrheal conjunctivits
2 to 7 days
persistent platelet elevations post infectious with a phx of abdominal trauma
splenectomy due to BAT
reactive thrombocytosis
Nontender lymphadenopathy - first step?
excisional biopsy
eosinophils on UA
what stain?
allergic or acute interstitial nephritis
Wright and Hansel
Polycythemia vera is caused by?
increased RBC production
NOT INCREASED EPO OR INCREASED EPO RESPONSIVENESS
PPV =
TP/(TP+FP)
patients want to know what a positive test means
Amniotic fluid
Ferning
Turns nitrazine paper blue
mechanism of action of hyperprolactinemia in hypothyroidism
TRH has some stimulation of lactotrophs = prolactin secretion
nipple discharge in hypothyroid patient
Sudden onset pain and redness in the MEDIAL CANTHAL region
Children or adults over 40
Dacrocystitis
Staph aureus, beta hemolytic strep
SP-P-IN
Specific test - positive - rules in disease
Bilateral pale gray nipple discharge
Guiac negative
Labs?
TSH and Prolactin level
What cbc findings can be found with EBV?
autoimmune hemolytic anemia
thrombocytopenia
elevated reticulocyte count
positive Coombs
due to IgM cold agglutinins
Work up of Addisons steps
early morning cortisol
cosyntropin stim test (no change = adrenal gland problem)
if adrenal gland - tx with cortisol + fludrocortisone
NPV =
TN/(TN+FN)
patients wants to know if the negative test is really negative
What immunosuppressant causes gingival hyperplasia and hirsutism
Cyclosporine
what is the other cause of floppy baby syndrome
Werdnig hoffman
AR degeneration of anterior horn cells and cranial nerve motor nuclei
What are the primary immune responses to PPSV23 vaccine and PCV 13 vaccine?
T-cell INDEPENDENT B cell response for PPSV23
T-cell DEPENDENT B cell response for PCV 13
Contrast induced renal failure lab values
LOW UNa
LOW FeNa
VERY HIGH spec grav
d/t spasm of afferent arteriole - renal tubular dysfunction and tremendous reabsorption of Na and Water
usual labs from toxin induced ATN would be the exact opposite
Untreated hyperthyroidism has increased risk for?
Bone loss
Osteoclast activity increased
Triple screen?
Quad?
Alpha fetoprotein
Estriol
Beta-hcg
Add inhibin A
Most common method of hep B transmission world wide
Perinatal
DTaP =
TdaP +
Kids
Adults
Proximal muscle weakness + hirsutism + weight gain
Cushing’s related MUSCULAR ATROPHY
EKG findings in tricuspid atresia
chest x ray findings
peaked P waves, Left axis deviation, small R waves
decreased pulmonary markings
headaches secondary to ICP are often worse when?
in the morning
Is BUN/Cr elevated or decreased in Upper GI Bleed?
elevated
Breast milk jaundice vs Breast feeding
Breast feeding = quanitity - not enough - bilirubin sits around due to lack of bowel movements - BEFORE DAY 7
Breast milk = quality - moms milk inhibits conjugation - AFTER DAY 7 - hydrolyzed formula
High radioactive iodine uptake scan = 3?
graves - diffuse pattern
toxic adenoma/multinodular goiter - nodular pattern
Hierarchy of growth in peds
Head
Height
Weight
(most to least important)
FTT leads to losses in the order of least to most important
Where is H and K excreted in the kidney?
cortical collecting tubule
seizure stoppage in pregnancy
phenobarbital - relatively safe
Nephrotic syndrome associated with what 3 physiologic responses?
edema
hyperlipidemia
thrombosis (hypercoagulable state)
cogwheel rigidity
slowing of movement on passive flexion or extension of extremities
VSD murmur
Holosystolic along left lower eternal border
With diastolic rumble at apex
Chemical conjunctivits is associated with?
silver nitrate
within 24 hours
bilateral, nonpurulent
Change in sensitivity and specificity with cutoff being decreased for a positive test
sensitivity increases
specificity decreases
Nocardia pulmonary findings
nodular or cavitary lesions in the upper lobes
cytologic findings of CSF with GBS
high protein, normal WBC’s
Benztropin and Trihexylphenidyl
anti-cholinergic
Parkinsons
When do you increase levothyroxine dose with pregnancy?
When the pregnancy is detected
Asymmetric IUGR
Brain weigh is NOT decreased
After 20 weeks gestation
First steps in SIADH
Fluid restriction
Salt tablets
Erythema infectiosum = ?
infectious agent?
presentation?
fifths disease
parvovirus b19
fever and rash (SAME TIME)
at what gestational age can you use a chorionic villous sampling?
over 10 weeks
What test is more specific for Rheumatoid arthritis?
CCP
painful, flaccid bullae, MUCOSAL EROSIONS
positive nikolsky sign
antibodies?
pemphigus vulgaris
antidesmoglein 1 and 3
chickenwire pattern on immunofluorescence - “intercellular deposits of IgG”
1 year 2year 3 year 4 year 5 year
walk
steps
tricycle
hop
skip
Asymmetric growth in infants due to?
Uteroplacental abnormalities
Maternal malnutrition
First line intervention for variable decels
maternal repositioning
Effect of knee to chest positioning on cardiovascular system
Increases systemic vascular resistance
Decreases amount of R to L shunting in Tetralogy
Hypertension, bilateral flank masses, micro he matures =
ADPKD
Berry aneurysms
Only time you give tetanus immune globulin
Dirty wound
Uncertain vaccination history
OR
Less than 3 doses in history
painless bleeding in 3rd trimester
placenta previa
transabdominal ultrasound to determine placental position
usually a patient with no prenatal care
most common nutritional deficiency in infants?
iron
Central lytic lesion
Onion skinning
Moth eaten appearance
Ewings Sarcoma
Specificity =
TN/ (TN+FP)
2month
4month
6month
gross motor
lift head
roll over
sit up
Enzyme to supplement with elevated homocysteine levels and DVT
Pyridoxine (B6)
Meds for treatment of glaucoma
mannitol
acetazolamide
pilocarpine
timolol
best treatment for absence seizures
ethosuximide
X ray findings of rheumatoid arthritis
periarticular osteopenia and erosions of the joint margin
Imaging needed for initial diagnosis of bronchiectasis
High resolution CT scan
Prevention of passing measles accomplished by
Airborne precautions
When does mittleschmerz occur?
At the time of ovulation
About halfway between periods
CSF findings with Creutzfeld-Jacob
14-3-3 protein
Triphasic spikes on EEG
Live attenuated vaccines
MMRV
Intranasal flu
Increased level of what is diagnostic of Menopause?
FSH
adequate contractions
> 200 montevideo units in 10 mins
IUPC measures
at least every 5 mins
Sensitivity =
TP/ (TP+FN)
Aortic dissection + elevated creatinine
Preferred imaging?
TEE
Adenocarcinoma
non-smokers
asbestosis
peripherally located
no paraneoplastic syndrome
In Brown Sequard hemisection loss of pain and temp occurs where approximately?
1 to 2 levels below the level of the transection
starting at umbilicus (T10) means injury occurred at T8
Magnesium decreases the risk of what complication in preterm infants?
cerebral palsy
Lab results of vomiting/nasogastric suctioning
hypochloremia, hypokalemia, metabolic alkalosis
elevated bicarb - for each H lost a bicarb is produced
Pathophysiology behind toxic adenoma and multinodular goiter
autonomous production of thyroid hormone
Two treatments for neuroleptic malignant syndrome
Dantrolene
Bromocriptine
Pre-renal azotemia =
hypoperfusion
increased BUN and creatinine
BUN more
gold standard for diagnosing vesicoureteral reflux?
voiding cystourethrogram
predisposing condition of dementia patients to aspiration pneumonia
lack of cough reflex
Best test to confirm Duchennes
Genetic testing
Screening tests tend to be what?
high sensitivity
pap smear
What anti-arrhythmic can cause dig toxicity when combined with dig?
Amiodarone
What value is most useful in differentiating anemias?
RDW
Epilepsy and absence seizures carry increased risk of development of what?
ADHD
Anxiety
Rasagiline, Selegiline
MOI
MAO inhibitors (MAO-B)
Kidney biopsy in Goodpasture shows?
linear deposits
Morning stiffness + C1 and C2
what to do next?
X-ray c spine
RA
rituximab MOA
monoclonal antibody against cD20
CLL treatment
Isolated onset of adrenarche (hair growth) in an obese young female
source of hormone?
Adrenals!!!!!!!
Differentiation of PCOS from Cushing Syndrome
No skin atrophy, muscle weakness, or bruisability in PCOS
Skin infection + recent ENT symptoms, + renal (glomerulonephritis)
GPA or Wegeners
Cellular findings with Dementia with Lewy Body disease
round eosinophilic intracytoplasmic inclusions within neurons of substantia nigra
Contralateral somatosensory and motor deficit predominantly in LOWER EXTREMITY
Abulia (lack of will)
URINARY INCONTINENCE
what area of stroke?
Anterior Cerebral Artery Occlusion
Ranolazine mechanism of decreasing angina
Decreased myocardial calcium influx
Epiglottitis cause
usual age?
Hib
3 to 7, with no vaccines
sick as shit - rapid onset, high spiking fever
tripod with drool
airway + IV abx
How to determine if pancreatic pseudocyst needs drainage?
severity of symptoms
nausea/vomiting/abd pain - drainage
pulsus bisferiens =
associated with what?
2 strong systolic peaks of aortic pulse
associated with significant aortic regurgitation
Difference between euthyroid sick syndrome and subclinical hypothyroid
Euthyroid sick is LOW T3 Syndrome with normal TSH and T4
Subclinical has an elevated TSH, Normal T4
D xylose test is used to diagnose what?
celiac
or malabsorption syndromes
low urinary excretion of d-xylose is a + test
Bilious vomiting in neonate
X ray findings normal
Next test?
Likely diagnosis
Upper GI series
Volvulus
Myotonic dystrophy typical age of onset?
Inheritance?
Vs DMD BMD
12-30
Autosomal dominant
BP treatment in pre eclampsia
Labetalol
Hydralazine (if BRADYCARDIC)
Timing of alcohol withdrawal symptoms
12 to 48 hours = seizures
2 to 4 days = Delirium tremens
Rheumatoid arthritis patient with splenomegaly and neutropenia?
Felty syndrome
autoimmune
powder burn lesions in the pelvis =
endometriosis
Treatment for post partum endometritis
Clindamycin plus gentamycin
Associated nephrotic syndrome with: Cancer? Children? IVDA and HIV NSAID's SLE
membranous
MCD
FSGS
MCD and Membranous
all of them
Live attenuated vaccines (6)
Polio (oral) MMR Rotavirus Influenza (intranasal) Yellow fever Varicella/Zoster
Recurrent sinopulmonary infections + AIDS related infections
Severe combined immunodeficiency
B and T cells
Treatment for legionnaires
macrolide or fluoroquinolone
Triamterene and Amiloride are?
K sparing diuretics
Side effect of mirtazapine
Weight gain
May or may not be beneficial depending in patient
UTI/asymptomatic bacteruria Treatment in pregnancy
- amoxicillin
2. nitrofurantoin
Precision
ability to reproduce results
doesn’t necessarily measure what it intends to measure - just repeatable
diverticulosis vs angiodysplasia
bright red blood due to arterial source with diverticulosis
maroon colored blood from right colon with angiodysplasia
Blood gas findings in CHF
Vs COPD
Hypoxia
Hypocapnia
Respiratory Alkalosis
Respiratory acidosis and hypoxia in COPD
Empiric treatment for bacterial meningitis in IMMUNOCOMPROMISED
Cefepime + Vanco + ampicillin
Medication used for conceiving in PCOS patients?
Clomiphene
Thrombosis of mesenteric or hepatic veins, think?
PNH
Sensitivity =
TP/(TP+FN)
Conditions associated with pulsus paradoxus
cardiac tamponade
asthma
COPD
Estrogen effect on thyroid hormones
Increases thyroid hormone binding globulin levels
Requires and increase in thyroid hormone
what does gabapentin bind to?
alpha-2-delta calcium channels
Significant side effect of efavirenz
psychiatric symptoms
Chorionic villus sampling timing
10-13 weeks
Most common medications causing acute interstitial nephritis
penicillins/cephalosporins Sulfa drugs (including diuretics)
Shy drager Syndrome
parkinson symptoms with Orthostasis
at what gestational age can you use amniocentesis?
over 16 weeks
Lice treatment
Permethrin
Recurrent sinopulmonary infections in adult
Low IgG, IgM, IgA
B cells?
Common variable immunodeficiency
Normal, but ineffective at making Immunoglobulins
exaggerated drop in systolic BP during inspiratin (>10 mmHg)
Pulsus paradoxus
Preferred benzodiazepine for alcohol withdrawal
Lorazepam
no active metabolites
hyporeflexia lethargy headache respiratory failure cardiac arrest
female early post-partum w/pre-eclampsia or eclampsia
Magnesium toxicity
Secondary prevention =
screening + intervention
Oxytocin toxicity
Hyponatremia
Hypotension
Tachyarrhythmia
Seizures
Important CYP 450 inducers
Carbemazepine Phenytoin Ginseng St John Wart Oral Contraceptives Phenobarbital Rifampin
Herpes simplex encephalitis imaging findings
FRONTOTEMPORAL region abnormalities
on CT, MRI, AND EEG!!!!
Foamy macrophages and fat globules on breast biopsy
Fat necrosis
Benign
What heart murmur is associated with ankylosing spondylitis?
aortic regurgitation
What is the greatest risk of parenteral nutrition?
central line associated bloodstream infection
Unilateral MOTOR involvement
no sensory, cortical deficits
no visual abnormalities
LACUNAR INFARCT
What physical exam finding is associated with aortic regurgitation
Bounding pulses (water hammer pulse)
At what gestation age is magnesium typically neuroprotective
Less than 32
21 hydroxylase deficiency results in elevated levels of what?
17-hydroxyPROGESTERONE
not pregnenolone
When can HIV patients receive live attenuated vaccines?
CD4 > 200
Central vs Peripheral Bells Palsy
Central - PRESERVATION of forehead and eyebrow movements
Peripheral - loss of forehead and brow movement, inability to close eyes and drooping lids, drooping of lower lip
Takayasu, GPA, Eosinophilic granulomatosis with polyangiities create what type of vasculitis
granulomatous
Test for sideroblastic anemia
Prussian Blue
Meds for fibromyalgia
TCA’s
Cause of retinopathy of prematurity
high FiO2 in preemie with poor lung maturity
Meds for trigeminal neuralgia
oxcarbazepine, carbamazepine
Specificity =
TN/(TN+FP)
Test for Cystinuria
urinalysis findings?
urinary cyanide nitroprusside test
hexagonal crystals
German Measles =?
prodrome?
fever and rash - timing and spread?
Rubella
fever and rash at same time
rash starts on face and spreads down body
generalized and tender lymphadenopthy
How to determine what to do after oxytocin fails in stage 2 of labor
fetal station
if negative - c-section
if positive - forceps/vacuum
Microcytic anemia non-responsive to iron supplementation
think?
Hemoglobinopathy
Right Heart cath findings in septic shock (distributive shock)
decreased SVR
decreased/lownormal PCWP
elevated MvO2
Increased cardiac index
Work up of Cushing’s
Steps
1 - low dose Dex test (failure to suppress) + 24 hour urine or late night salivary
2 - ACTH (normal = adrenal tumor) (elevated = ACTH dependent)
3 - High dose dex suppression test (suppression = cushings disease), (failure to suppress = ectopic tumor)
Low then high
Apt test is for?
testing whether baby swallowed moms blood during delivery
Meds to help 5-7mm renal stones pass
Nifedipine or Tamsulosin
2nd Tri screen
Triple and Quad Screen
hCG, AFP, Estriol
quad + Inhibin A
Downs is up
Edwards is down down down
Normal amniotic fluid index
8 to 25
what two sensations are intact with anterior spinal artery infarct
position and vibratory
What other electrolyte may need to be replaced if hypokalemia is resistant to correction?
Magnesium
can lead to INCREASED urinary loss of K
omphalocele is usually located where?
MIDLINE
Should all Hep C patients be immunized against Hep A and B?
Yes
Trichinellosis vs infective endocarditis
Eosinophilia and periorbital edema in trichinellosis
Important CYP 450 inhibitors
Acetaminophen NSAIDs Amiodarone Antibiotics Cimetidine Cranberry juice, Gingo biloba Omeprazole Thyroid hormone SSRIs
Pathophysiology of uterine fibroids
Smooth muscle cell proliferation in myometrium
Irregularly enlarged uterus
most common skin cancer of the lower lip?
squamous cell
Anti smooth muscle antibodies is associated with what hepatic condition?
Autoimmune hepatitis
HACEK organisms
Tx?
Haemophilus Actinobacillus Cardiobacterium Eikenella Kingella
Ceftriaxone
most common cause of nephrotic syndrome in adults?
FSGS
Brain region involved with Huntingtons
Caudate nucleus
Most common cause of sepsis in sickle cell disease
S. pneumoniae
prophylactic penicillin until age 5
Most common sequelae of bacterial meningitis
Hearing loss
Most common causes of acquired methemoglobinemia
Topical anesthetic
Dapsone
Nitrates in infants
Symmetric growth restriction due to
Chromosomal anomalies
Congenital infections
Lymph nodes with purple to drainage
Staph, burkholderia, nocardia, aspergillosis infections
Chronic granulomatous disease
Rare but possible serious complication of Infectious Mono
Acute airway obstruction
Eggshell calcification on liver cyst =
Hydatid cyst
Echinococcus granularis
common side effect of roux-en-y bypass other than dumping syndrome
gall stones and cholecystitis
due to rapid weight loss
Maneuvers that reduce blood return to the heart typically do what to innocent murmurs?
Reduce the intensity
Macrosomia. Macroglossia, HEMIHYPERPLASIA
=
Beckwith Wiedmann
Abdominal ultrasound
What occurs with uric acid levels in SiADH?
characteristically low
Characteristics of RA to know
Small joints - hands and feet
Symmetric
Morning stiffness - greater than 60 mins to relieve
Cholesterol nodules
Antipsychotic least likely to cause extrapyramidal symptoms
CLOZAPINE
Aldosterone mnemonic
ASSPP
Aldo saves sodium and pushes potassium out
ACE-I causes what change in kidney blood flow?
efferent arteriole dilation
1st Trimester Screen
U/S Nuchal translucency
PAPP-A
hCG
vaccination, weight loss, decreased EtOH intake, decreased smoking are all forms of?
primary prevention
Treatment for crabs
Permethrin
Hemodynamics in Hypovolemic shock
RA pressure PCWP cardiac index sVR MVO2
Decreased
Decreased
Decreased
Increased
Decreased
Antibody for primary biliary cholangitis
Anti-mitochondrial
CHemo Man
Arms and Legs - Vincristine/Vinblastine = peripheral neurop
Heart - Doxi/Daunorubicin - dose dependent cardiomyopathy
Lungs - b shape - bleomycin - pulmonary fibrosis
kidneys and ears - platins - oto and renotoxic
Cystitis - hemorrhagic cystitis
fragile X is commonly associated with what?
autistic behavior
Pathophysiology behind breath sounds and tactile fremitus in pneumonia vs pleural effusion
Pneumonia = consolidation INSIDE lung = breath sounds fremitus traveling FASTER through liquid = INCREASED FREMITUS AND BREATH SOUNDS
Pleural effusion = fluid OUTSIDE lung = INSULATION of sounds = DECREASED FREMITUS AND BREATH SOUNDS
Painful violaceous nodules on fingers tips and toes
Osler nodes
Idiopathic precocious puberty is due to what?
Early activation of the HPA axis
lung lobes affected with aspiration in supine patients
posterior segments of upper lobes
superior segments of lower lobes
Envelope shaped crystals
Calcium oxalate
Ethylene glycol ingestion
colonscopy for ulcerative colitis diagnosed early
start 8 years from diagnosis
q1year
When is a Head CT needed prior to LP?
Papilledema
Seizures
Focal neurologic abnormalities
Confusion
CD4 count for toxo
less than 100
What tendon reflex decreases with age?
Achilles
Renal vein thrombosis most commonly associated with what kidney condition?
Membranous glomerulopathy
ferning or positive nitro test with pregnant women =
rupture of membranes
primary ovarian insufficiency is a form of?
HYPERGONADOTROPIC hypogonadism
elevated GnRH, FSH
decreased estrogen
Mechanism of action of riluzole
tx for?
glutamate inhibitor
ALS
Ring enhancing lesions in an HIV patient
Toxoplasmosis
TMP-SMX prophylaxis
Lennox Gastaut Syndrome
children less than 7
array of seizure type s+ mental retardation
Squamous cell
smoking
centrally located
PTH-RP
grossly lipemic serum, palmar xanthomas, pancreatitis
first line tx
fenofibrate
familial dysbetalipoproteinemia
Milk protein allergy presentation
due to?
soy protein allergy
failure to thrive despite adequate feeding
may present with bloody bowel movement
switch to cows milk or breast feeding
Biomarker for epithelial ovarian carcinoma
CA-125
check level in postmenopausal woman with ovarian mass on pelvic ultrasound
When do you add dextrose fluids in DKA?
glucose less than 250
Jarisch-Herxheimer Reaction
Fever and worsening symptoms after treatment of syphilis
Give aspirin and antipyretic
Symptoms of adrenal insufficiency
Initial work up
weakness, fatigue, hyponatremia, hyperkalemia
low-normal early cortisol
8am serum cortisol + Plasma ACTH
ACTH stim test in the meantime (plasma ACTH will take a few days)
Dyskinesia in Huntingtons treated with?
tetrabenazine
Can ACEi ARB be used with unilateral RAS?
yes
which type of colon polyp has the greatest malignant potential?
villous
VILLain
Relief of pneumothorax allows restoration of what?
venous return
CATCH
In catch 22 for digeorge
Conotruncal defects Abnormal facies Thymic aplasia,hypoplasia Cleft palate Hypocalcemia
Sudden loss of vision + floaters + difficulty visualizing fundus
Vitreous hemorrhage
What 3 conditions is FSGS associated with?
HIV
Obesity
Heroin use
And African Americans
inheritance of wiskott-aldrich
x-linked
what imaging should be done for individuals with myasthenia gravis
Chest
either X-ray, CT, or MRI
looking for THYMOMA
CT w/contrast is best
Peds meningitis causes
<3 months = GBS, E. coli, listeria, HSV
3 months to 10 years = Strep pneumonia, Neisseria
> 11 years = Neisseria
Only way to definitively diagnose adenomyosis?
Hysterectomy
sodium correction in DKA
+ 2 Na for each 100 mg Glucose over 100
Fine motor
3 year
4 year
5 year
circle
plus sign
triangle
Common additional findings with Legionella
bradycardia
hyponatremia
mild hepatitis
CNS/GI involvement
Giant granules in neutrophils, albinism
Chediak Higashi
Differentiation of painless vaginal bleeding in pregnancy
Placenta Previa - no abnormalities other than bleeding
Vasa previa - Fetal heart tracing changes show deterioration
What is the preferred treatment for adjustment disorder?
Psychotherapy
As opposed to meds for MDD
Bupropion MOA
NDRI
What drugs for epilepsy are relatively safe for pregnancy?
leviteracitam
lamotrigine
4th gen cephalosporin
Cefepime
Why is the right kidney easier to palpate in ADPKD?
it lies lower than the left
due to the liver on the right
Treatment for risperidone induced parkinsonism
add benztropine - anticholinergic
Two types of periinfarct arrythmias
type Ia - within ten minutes - due to heterogenous conduction = reentrant
type Ib - 10 to 60 minutes post infarct - due to abnormal automaticity
first line tocolytic at 32 to 34 weeks gestation
nifedipine
Type IV RTA also known as?
mechanism of impairment
common underlying disease
Diagnostic test>
Tx?
Hypoaldosteronemia, Hyporeninemia
impaired aldosterone signaling
diabetes
Urine Na loss even with salt restricted diet
Fludrocortisone
Genetic inheritance of Kallman
X linked recessive
congenital absence of GnRH
Trinucleotide repeat for Huntingtons?
CAG
differentiating nocardia from Actinomyces and Mycobaterium tuberculosis
weakly acid fast
not acid fast
strongly acid fast
Most common organism associated with contact lens keratitis
Pseudomonas
Glomerular disease + hearing loss + visual disturbance?
Alport
type IV collagen
When can you observe and follow up dog/human bites
minor in nature
not located on hands, feet, or genitalia
immunocompetent
hyperechoic nodules with calcifications - ovarian mass
dermoid ovarian cyst (CYSTIC TERATOMA)
benign
pre-menopausal women
Most common side effect of excess oxytocin
Uterine tachysystole
Immunodeficiency + thrombocytopenia + eczema
Wiskott-Aldrich
why is strep pharyngitis less common udner age 3?
don’t have enough epithelial cell attachment sites
Most common type of vulvar cancer?
Squamous cell
Pathophysiology of Meckels diverticula
Incomplete obliteration of the vitelline (Omphalomesenteric) duct
Symmetric IUGR
Brain in proportion with rest of body
Before 20 weeks
What medication do you add to acute lymphocytic leukemia?
intrathecal methotrexate
Infectious screens at initial prenatal visit
HIV VDRL/RPR Hep B Rubella Varicella Chlamydia (NOT GONORRHEA)
Young, otherwise healthy female
Myalgias, proximal muscle weakness
Dx?
Labs?
Hypothyroid myopathy
TSH and free T4
Bacterial tracheitis vignette
croup that doesn’t improve
more toxicity - fever/leukocytosis
racemic epi doesn’t work
tracheal culture
Differentiating thalassemia minor from iron deficiency
Mentzer index
MCW/RBC
> 13 - Iron
<13 - thalassemia
Zones of Adrenal
Glomerulosa - aldosterone
Fasciculata - cortisol
Reticularis - testosterone
1 year
2 year
3 year
4 year
5 year
language
1 word
2 word
3 word
4 word
5 word sentences
Pramipexole and Ropinirole
Dopamine agonists
Parkinsons
macrocytic anemia
low retic
congenital anomalies
diamond blackfan anemia
triphalangeal thumbs
what type of bili causes kernicterus?
unconjugated -> able to cross BBB
currant jelly stool + sausage shaped mass + intermittent colicky abdominal pain with knees to chest (normal in between)
intussusception
KUB
U/S
Air enema
Medication for ALS?
Riluzole
reduces glutamate buildup
Meds for Tourettes
Fluphenazine, Clonazepam, Pimozide
CD4 count for CMV disseminated
less than 50
What type of cell on peripheral smear is most common with thalassemia
Target cells
Inevitable abortion
Intrauterine bleeding + dilation of cervix
Rheumatic fever is more often linked to ?
As opposed to glomerulonephritis being linked to?
group A strep throat
vs
impetigo
Lewy Body dementia = Dementia +?
Parkinsonism
Underlying pathophysiology of intussusception
Hypertrophy of Peyers Patches
Seconary group of patients that Craniopharyngioma occurs in
55 to 65 years old
mycosis fungoides =
cutaneous T cell lymphoma
gastroschisis is usually located where?
to the right of the umbilicus
fatigue + weight loss + normocytic anemia + renal insufficiency + hypercalcemia
multiple myeloma
Hypnagogic hallucinations occur when?
Just prior to falling asleep
mydriasis =
can worsen what condition?
dilation of the pupil
acute glaucoma
Hyperventilation effect on CO2
Effect on cerebral blood flow
Decreases
Vasoconstriction
Teenager with possible meckels - diagnostic test?
CT scan is better than Tech-99 scan
Purulent conjunctivitis 2 to 5 days after delivery
GONOCOCCAL
Roseola =?
what infectious agent?
fever and rash - timing and spread
HHV 6
HIGH spiking fever
fever, then rash, not together
rash starts on trunk and spreads outward
Pathophysiology of Hepatorenal syndrome
Splanchnic arterial dilation
Decreased GFR in absence of other clear cause
Amniocentesis timing
15-20 weeks
Inheritance of hemophilia A and B
X linked recessive
Urine anion gap = ?
helps determine between?
Na - Cl-
between RTA and diarrhea
Threatened abortion
Intrauterine bleeding + NO CERVICAL DILATION
Gold standard tx for pertussis
Macrolides
Bacterial meningitis empiric treatment
2 to 50 years
over 50
2 to 50 = vanco + 3rd gen cephalosporin
over 50 = vanco + 3rd fgen ceph + ampicillin
Which cancer has the highest ability to transform into acute leukemia?
CML
Drug used for HIV transmission prevention in baby
Zidovudine
What defines a positive water deprivation test
Urine osmolality stays low
Urine volume stays high
Left to Right shunts in peds (3)
ASD
VSD
PDA
clotting changes with pregnancy
increased vWF, increased 7,8,10
decreased protein C and S
increased fibrinogen
Child
High fever
Knee pain/Swelling (Unilateral)
refusal to bear weight
leukocytosis + elevated CRP and ESR
Recent URI or skin infection
Septic arthritis
next step: Arthrocentesis
Glucose levels low in pleural effusion usually due to
White blood cells in the effusion
Patients with gonococcal infection should be screened for?
HIV, Syphilis, Hep B
Polyarteritis nodosa creates what type of vasculitis
necrotizing
Indications for retrograde urethrogram
blood at meatus
dysuria
urinary retention
foot tapping, lip smacking, tongue protrusions in a patient on antipsychotics
tardive dyskinesia
when dose reduction isn’t possible switch to CLOZAPINE
maternal diabetes associated with what congenital heart defect
transposition
Draw the diagram for determining NPV, PPV, SNS, SPC
TP FP PPV
FN TN NPV
SNS SPC
Diptheria steps of treatment
intubate
anti-toxin
IV abx
pseudomembrane - do not try to remove it
Melanosis coli
Dark brown discoloration of the colon with pale patches of lymphoid follicles
Associated with laxative abuse
Preferred pharmacotherapy for a prolonged QT
Beta blockers
Blunts increases in HR and shortens QT
Mupirocin
Topical antibiotic
Localized impetigo
What three things are commonly affected by allergenic substances?
skin
kidney
red cells
Rusty or dark brown lesions on laparoscopy
Chocolate cyst on ovary
Endometriosis
diffus breast erythema, edema, p’eau d’orange
inflammatory breast carcinoma
Lung destruction from smoking vs AAT deficiency
upper lobes for smoking
lower lobes for AAT deficiency
Centriacinar vs Panacinar respectively
At what age can you stop mammo screening?
75
Recurrent skin infections with staph
Hyper-IgE syndrome
Hemodynamics in Cardiogenic shock
RA pressure PCWP cardiac index sVR MVO2
Increased
Increased
DECREASED
Increased
Decreased
Dysmorphic red cells on UA =
glomerulonephritis
Where is Wernicke’s area located?
other associated findings with stroke?
Superior posterior TEMPORAL lobe
right superior visual field defect
Pertussis post exposure prophylaxis
Azithromycin for 5 days
Or the other macrolides
Patient with stroke already on aspirin, next pharmacologic step
add Dipyridamole
OR
switch to Clopidogrel
Confirmatory tests tend to be ?
high specificity
colposcopy
Tolvaptan and Conivaptan are?
ADH Antagonists
for acute severe SIADH
Demeclocycline for chronic SIADH
Stroke or MI in a young person = look for?
viral infection associated?
best initial test?
Polyarteritis Nodosa
Hep B
Angiography
2 months
6 months
1 year
social development
social smile
stranger anxiety
separation anxiety
Mild vs Severe Concussion
4 factors
FND
LOC
HA
Amnesia
Important equation for determining pH
H+ = {pCO2}/{HCO3-}
Treatment for toxoplasmosis
Sulfadiazine + Pyrimethamine
TMP-SMX for prophylaxis
what is the type of rash with fat embolism?
petechial
12 to 24 hours after injury
condyloma acuminata =
condyloma lata =
HPV
syphilis
Low ferritin + High TIBC =
RDW?
Iron deficiency anemia
Increased RDW
What imaging can induce thyrotoxic crisis
CT with contrast
Contrast is iodinated
Change in sensitivity and specificity if cutoff point is increased for a positive test
sensitivity decreases
specificity increases
Mono like illness in mom
brain calcifications
ventriculomegaly
seizures
toxoplasmosis
abx for gallbladder diseases (cystitis, docholithiasis, cholangitis)
cipro/metro
amp/gent/metro
Three A diseases associated with eosinophilic esophagitis
asthma
allergies
atopy
esophageal cancer vs esophageal stricture
barium swallow
stricture = symmetric
cancer = asymmetric
nocturnal asthma =
GERD
Stool osmolar gap
Measured - calculated
290 - (2x(Na + K))
Stool osmolar gap
Measured - calculated
290 - (2x(Na + K))
attributable risk percent =
ARP = (RR-1)/RR
so if a given risk factor causes 4 times the risk of getting a disease the RR = 4 and the ARP = 75%
do sensitivity and specificity depend on disease prevalence at all?
No
What is factorial study design
2 or more interventions each with 2 or more variables studied independently
what value of hazard ratio indicates no significant difference in adverse event outcomes between two itnerventions?
the closer to 1, the more equal they are
wider confidence interval including the null value of RR=1
most likely cause?
small sample size
decreases power
Subtypes of Selection bias
ascertainment
nonresponse
Berkson
Prevalence (Neyman)
Attrition
Subtypes of Observational Bias
Recall
Observer
Reporting
Surveillance (detection)
Case Control study
analytical observational study
retrospective
selecting cases with an outcome then controls without that outcome
then look back for risk factors
when can odds ratio be assumed to be representative of the relative risk?
rare diseases
tampon use and toxic shock syndrome
TSS has very low prevalence
research study to do to investigate incidence
cohort study
Mode, median, mean
in a positive skew
in a negative skew
positive
Mode> Median > mean
negative Mode < median < mean
a tight confidence interval =
a precise study
moving upward on an ROC cruve =
moving to the right on an ROC curve =
increased sensitivity
decreased specificity