MedStudy Board-style Q+A's Flashcards
Younger, intermittent dysphagia, solids not liquids, not progressive
Schatzki ring, do EGD
Rectal bleeding with cramps
Ischemic colitis, do flex-sig
Chronic diarrhea + GERD + Ulcers
Zollinger-Ellison syndrome, check gastrin level off PPI
Familial polyposis coli- what surveillance?
Scope any rectum remaining after surgery, also EGD for gastric or proximal small bowel malignancies
Common cause pill esophagitis
doxycycline. Rx supportive measures
Older with watery diarrhea, mild cramping, abdominal pain
Microscopic colitis, dx with colonoscopy with biopsy
Younger, recurrent severe GI bleeds, negative scopes
Meckel’s diverticulum; dx nuc med scan; rx surgery
Hospitalized pt with MSOF, on TPN, US shows thickened GB wall with surrounding fluid, no stones
Acalculous cholecystitis; place percutaneous cholecystostomy tube
Hep C with normal LFT’s- what rx?
No rx at this time
Gastric bleed with visible vessel- rx?
Endoscopic rx with heater probe to the vessel
Food poisoning: Chinese restaurant, fried rice; 4-6 hours after, diarrhea, vomiting
B. cereus
Food poisoning: food left out at a picnic, mayonnaise
Staph aureus
Food poisoning: fast food hamburgers
E. coli 0157:H7
Lung mass, draining cutaneous lesion, budding yeast
Ohio/Mississippi basins: Blastomycosis
Southwest: Coccidioidomycosis
Rx itraconazole, amphoB if severely ill
Treatment Pulmonary Arterial Hypertension
Warfarin, oxygen, calcium channel blockers, oral endothelin receptor antagonists, PDE inhibitors, prostacyclin analogues
Causes decreased DLCO
Emphysema, interstitial inflammation and fibrosis, edema, infections; also reduced capillary lung volumes as in pulmonary hypertension, pulmonary embolism; anemia (unless corrected for hgb count)
Drugs that interact with theophylline and can elevate levels causing toxicity
cipro, cimetidine, erythromycin, propranolol, tetracycline
Necrotizing pneumonia that is contagious (possible bioterrorism)
Yersinia pestis (plague pneumonia)
Cause of pleural effusion glucose < 30
Rheutoid arthritis pleural effusion
Best test if suspect tuberculous effusion
Pleural biopsy
Fever, malaise, headache, sore throat, nonproductive cough; sore throat seen 2-3 weeks prior to pneumonia
Chlamydophila pneumoniae (formerly Chlamydia) rx macrolide or doxycycline
Definition severe persistent asthma
continual symptoms, frequent exacerbations, nighttime symptoms, limited activity, FEV1 or PEF 30%
Calculate A-a gradient; normal A-a gradient
A-a gradient = 149 - (PaO2 + 1.25 x PaCO2);
Normal < 0.3 x age (years)
Neurofibromatosis-2 associated with what tumor?
vestibular schwannoma
Neurofibromatosis-1 associated with what tumor?
optic glioma
Tuberous sclerosis associated with what tumor?
Giant cell tumors
Turcot syndrome and nevoid basal cell carcinoma syndrome associated with what tumor?
medulloblastoma
von Hippel-Lindau syndrome associated with what tumor?
hemangioblastoma
Treatment of hypercalcemia of malignancy
IV hydration, bisphosphonate, diuresis
Cell types ovarian cancer old vs younger
Older- epithelial; Younger- germ cell, more treatable
Cell type testicular cancer
Germ cell > 95% of time; do not do transscrotal resection
Side effect alkylating agents
infertility
What chemorx cause capillary leak syndrome?
IL-2, GM-CSF
derived from bark of the western yew tree
Paclitaxel
Which causes more nausea and nephrotoxicity: carboplatin or cisplatin?
cisplatin
Stages CLL
0- lymphocytosis 1- + LAD 2- + HSM 3- anemia 4- thrombocytopenia
Side effects 5FU
GI toxicity and mucositis
Side effects methotrexate
mucositis and diarrhea
Side effects vincristine
neurotoxicity
Side effects vinblastine
myelotoxicity
Basal cell ca facts
Related to sun exposure
Can be inherited
Locally aggressive
Uncommonly seen black skin
Features Gorlin syndrome (nevoid basal cell carcinoma syndrome)
Autosomal dominant Numerous basal cell carcinomas Palmar and plantar pits Cysts of mandible Bifid ribs agenesis of the corpus callosum hypertelorism Generally good prognosis
Concussion recommendations
Grade I- no amnesia or LOC- ok return after 20 minutes
Grade II amnesia but no LOC out x 1 week
2nd concussion out one month
3rd concussion out for season
Coma with pinpoint pupils- dx?
opiate overdose or pontine infarct
Sx Creutzfeldt-Jacob disease
Rapidly progressive dementia
myoclonus (precipitated by sudden noises or startle)
Pyramidal, extrapyramidal, cerebellar signs
Anticonvulsant that is only could for absence seizures
Ethosuximide
Encephalitis with personality changes/encephalopathy dx
viral meningitis- HSV (usually 1 except in neonates) or WNV
Rx active TB
4-drug therapy x 2 months then INH+RIF x 4 months
INH, RIF, Pyrazinamide, and either ethambutol or streptomycin
Upper lobe predominant lung diseases
Silicosis
Ankylosing spondylitis
Eosinophilic granuloma
What agent will effectively bronchodilate and not be blunted by beta-blockade?
Ipratropium
Lower lobe predominant lung diseases
Rheumatoid fibrosis
Asbestosis
Connective tissue diseases e.g. SLE
Sarcoidosis and berylliosis both cause non-caseating granulomas. How to differentiate?
Lymphocyte transformation test on BAL lymphocytes or blood;
positive = berylliosis
Clinical features silicosis
Mining, stone cutting, quarrying, construction, glass manufacturing, sand-blasting Restrictive lung function "Eggshell calcification" of hilar nodes Increased risk TB, lung cancer Associated with scleroderma, RA
Clinical features coal worker’s pneumoconiosis
Similar PFT findings to silicosis
No eggshell calcifications or increased TB or lung cancer risks
Clinical features berylliosis
Exposure to electronics, nuclear material, ceramics
Bilateral hilar LAD similar to sarcoid
Byssinosis
Related to exposure to impurities in cotton, flax, and hemp dusts
after > 10 years exposure, often “first day of work week”
associated with gm neg exotoxin
What is CD4 cutoff in HIV pt at which you are concerned for MAI/MAC?
CD4 < 50
Treatment latent TB?
INH 9 months
Appropriate ventilator settings for asthma
You want prolonged expiratory phase, therefore:
low rate, low tidal volume, high flows
Clinical features of Hand-Schuller-Christian syndrome?
Lytic bone lesions
DI
exophthalmus
On lung bx look for eosinophilic granulomatosis
Clinical features Loeffler’s syndrome
Pulmonary infiltrates
Peripheral eosinophilia
Due to Ascaris or other worm migrating through the lung
Light’s criteria
Exudate if:
pleural:serum protein > 0.5
pleural:serum LDH > 0.6
pleural LDH > 2/3 upper limit of normal for serum LDH
Adenosine deaminase in pleural fluid
TB related effusion
Elevated triglycerides in pleural effusion
Chylous effusion from disruption of thoracic duct
Rx mild RA
ASA or other NSAID
Crystals gout
strongly negatively birefringent needle-like
Crystals pseudogout
weakly positive birefringent rhomboid; precipitated by infection, trauma, surgery
Clinical features drug-induced lupus
Procainamide can cause
+ anti-histone antibodies
Serositis, fever are common
Rash, CNS, renal involvement are rare
Eosinophilic fasciitis
scleroderma-like condition with eosinophilia and skin thickening (sparing the hands) that frequently starts after vigorous exercise
Unlike scleroderma, which always involves hands, causes Raynauds, + ANA, synovitis
In dermatomyositis, what autoantibody indicates possible pulmonary fibrosis?
Anti-Jo-1
Rx Behcets with retinal vasculitis
Thalidomide
Methotrexate
Colchicine
c-ANCA associated with
Wegeners; think if sinusitis and vasculitis
p-ANCA associated with
microscopic polyangiitis
anti-GBM associated with
Goodpastures
Rx sicca symptoms of sjogren’s
Artificial tears and saliva and secretagogues such as pilocarpine or cevimeline
SLE: what antibodies associated with increased disease activity and nephritis?
anti-dsDNA and low complement levels
SLE: 17-30% positive what antibody?
anti-Sm
SLE: what antibody 100% for drug-induced but 25% of not drug-induced?
anti-histone
SLE: what antibody suggests better prognosis?
anti-U1 RNP
SLE: what antibody associated with complete heart block and neonatal lupus?
anti-Ro/SS-A
PPD: Positive at 5mm
Immunosuppressed such as HIV or organ transplant
Close contact with documented case
Fibrotic changes on CXR consistent with prior TB
PPD Positive at 10mm
High risk with normal immunity: Health care workers, IV drug users, prisoners, homeless
PPD Positive at 15
People with no risk factors
How to calculate pressure gradient across a valve?
modified Bernoulli equation
4 v squared
v = velocity of flow
Heart sound: pulmonary htn
Widely split S2 (delayed emptying RV)
Heart sound: severe AS
Either only P2, or paradoxical splitting 2nd sound
Paradoxical splitting S2
severe AS, permanent pacemaker, LBBB
Heart sound: ASD
fixed split S2
CXR findings rheumatic mitral stenosis
pulmonary vascular redistribution
large left atrium
normal sized left ventricle
calcified nodules from previous pulmonary hemorrhages
People from tropical environments develop what a decade earlier?
valvular disease from rheumatic fever
What is unique about congenital pulmonic stenosis?
Only right-sided heart sound to become softer on inspiration
Commonest abnormality at autopsy of young athlete
Hypertrophic cardiomyopathy
Features of apical hypertrophic cardiomyopathy?
Asians
Usually but not always autosomal dominant
No obstruction or murmur
Prominent voltage anterior or lateral leads
Atrial fibrillation is common due to elevated LV end-diastolic pressures
Cardiac tamponade: cath tracings
elevated and equalized diastolic pressure
Cardiac tamponade: H+P findings
History: carcinoma of lung or breast, lyphoma with dyspnea
Physical: hypotension, elevated neck veins with single rapid x descent, pulsus parodoxicus (arterial BP inspiratory fall > 10mmHG)
Post-splenectomy organisms
Strep pneumo
H. influenzae
N. Meningitidis
Meningococcemia: screen for ?
CH50 (terminal compliment deficiency
Pophyria cutanea tarda associated with what?
HCV
Vesicles of the skin, increased pigmentation, increased fragility, milia formation
Increased liver cirrohsis and cancer
Rash of syphilis
Diffuse maculopapular rash trunk, head, neck, palms, soles;
Classically “round, nickel and dime-sized lesions”
Pyoderma gangrenosum
Leg ulceration hypersensitivity reaction to IBD, RA, multiple myeloma, other inflammatory disorders
Guttate psoriasis
hundreds of 2-5mm scaly red papules trunk and extremities, moderately pruritic
often after strep throat
Acute fatty liver of pregnancy
Late pregnancy with nausea, vomiting, liver dysfunction
Live vaccines that shouldn’t be given during pregnancy:
MMR
Typhoid
polio
yellow fever
Antibiotics to avoid during pregnancy
Cipro
Tetracycline
Doxycycline
Treatment syphilis in pregnancy
PCN-
even if highly allergic, desensitize her
Pregnant pt with new onset atrial fibrillation and pulmonary edema
mitral stenosis secondary to rheumatic fever
Tetralogy of Fallot
large VSD
right ventricular outflow tract obstruction
overriding aorta
RVH
Characteristics and rx of fibromuscular dysplasia
Sudden onset htn in young, caucasian female
renal bruit (30%)
hypokalemia (htn is mediated by stimulation of renin, aldosterone)
renal arteriography “beaded appearance” of renal artery
Rx ace-i or ARB, consider surgery or angioplasty
EKG: Right axis deviation
I: negative
aVF: positive
EKG: Normal axis
I: positive
aVF: positive
or
aVF: negative and II: positive
EKG: Left axis deviation
I: positive
aVF: negative
II: negative
EKG: classic PE findings
S1Q3T3
Indications for mitral valve replacement
Severe MR with symptoms or asymptomatic with LV systolic dimension > 55mm
Arkansas, tick-bite, lymphadenopathy
Francisella tularensis (tularemia)
Missouri, pancytopenia, tick exposure
ehrlichiosis
Dx cryptosporidium
acid fast stain of stool or stool antigen
won’t grow in culture
Malaria-like severe hemolytic anemia in splenectomized pt
Babesiosis
Dx amebic liver abscesses
do serology
When and what to start for HIV?
HAART @ CD4 < 350:
tenofovir, emtricitabine, efavirenz
If CD4 < 200 add TMP/SMX for PCP prophylaxis
EtOH, sepsis, oysters, gulf water
Vibrio vulnificus
Toxic shock with + blood cx: strep or staph?
strep
Young person with hearing loss
Syphilis
Arizona, fever, inguinal lymphadenopathy
Plague
Mississippi river valley, AIDS, pancytopenia, palatal ulcer
histoplasmosis
Isolated Bell’s palsy can be presentation of ?
Lyme disease
Febrile neutropenia indications for vanco?
Hypotension/shock
Suspected IV catheter infection
Known MRSA colonization or resistant pneumococcus
Mucositis
nonspecific symptoms: weight loss, diarrhea, arthropathies, skin hyperpigmentation
Trophermyma whippleii (Whipple disease) Dx bx lymph node or endoscopic and PAS staining; Rx bactrim or ceftriaxone or chloramphenicol
Contraindications for breast-feeding
Active untreated TB, maternal HIV
HAGMA: D-lactic acidosis
Short bowel syndrome- increased carbs to colon, increased L and D lactate, but L lactate is metabolized.
dDx AG metabolic acidosis
lactic acidosis renal failure ketosis ingestions D-lactic acidosis
Steps of acid-base
1) pH
2) AG- ? HAGMA present?
3) Assess delta HCO3 vs AG to assess for NAGMA or metabolic alkalosis
4) Assess respiratory compensation: 15 + HCO3 should = CO2
HAGMA: Renal failure
Increase ammonia (BUN)
HAGMA: Ketoacidosis
diabetic
EtOH
starvation
HAGMA: Lactic acidosis
drugs
toxins
circulatory compromise
HAGMA: Ingestions
salicylates
methanol
ethylene glycol
What eye drops do not use with hyphema?
NSAID
Horner pupil
sympathetic denervation
Ipsilateral ptosis and anhidrosis
Normal responses to pupillary light, topical dilators and constrictors
AIDS with retinopathy
CMV retinitis
HIV + with good CD4 count (not AIDS)
HIV retinopathy
Renal complications of multiple myeloma
Nephrotic syndrome, usually due to secondary amyloidosis
Myeloma kidney- renal failure w/o proteinuria
Fanconi syndrome
Fanconi syndrome
Proximal, Type II RTA Hypokalemia Phosphaturia Uricosuria Glycosuria Aminoaciduria
Bartter’s, Gitleman’s, Liddle’s cause:
hypokalemia with metabolic alkalosis
Bartters and Gitleman’s = normotensive
Liddle’s = hypertensive
Hyperparathyroidism in ESRD
Control phosphorus level (< 5.5), can use calcium to bind but need to keep Ca x Phos < 60-70
O/W sevelamer binds phos w/o affecting Ca
If Ca and Phos both ok control hyperpara with 1,25 vit D (calcitriol) or zemplar or hectorol
dDx NAGMA
RTA
Diarrhea
Carbonic anydrase inhibitors
TPN
Type 1 RTA: findings/mechanism
Distal
Urine pH > 5.5
Serum K+: Low-nl
Decreased H+ secretin distal tubule
Type 1 RTA: Causes
Autoimmune (SLE, Sjogrens, RA)
Hereditary hypercalciuria
Drugs (amphotericin B, lithium)
Type 2 RTA: findings/mechanism
Proximal Urine pH < 5.5 (high initially) Serum K+: Low-nl Fanconi's Decreased resorption of HCO3 in proximal tubule
Type 2 RTA: Causes
Multiple myeloma Acetazolamide Ampho B Heavy metals Amyloidosis
Type 4 RTA: findings/mechanism
Distal
Urine pH < 5.5
Serum K: high
Decreased cation exchange distal
Type 4 RTA: causs
Diabetic nephropathy Chronic interstitial nephritis NSAIDS Ace-i Obstructive uropathy Spironolactone
Red cell casts
Very specific for glomerulonephritis
White cell casts
pyelonephritis
Granular casts
nonspecific, often ATN
Waxy casts
advanced renal disease
hyaline casts
do not indicate disease, seen with concentrated urine
Nephritic syndrome urine findings
"Active sediment" variable protein red cells white cells red, white, and granular casts
Nephrotic syndrome definition
> 2.5gm proteinuria/day
hypoalbuminemia and hypogammaglobulinemia
hypercoaguable
hyperlipidemia
Nephritic
Low complement
Primarily kidney
Post-infectious glomerulonephritis (check strep antigen titers)
Membranoproliferative glomerulonephritis
Lithium toxicity symptoms
Ataxia muscle weakness nausea/vomiting diarrhea tinnitus polyuria mental status changes
Drugs which decrease lithium excretion
ACE inhibitors
Thiazides
Diuretics
Wernicke aphasia
Lesion posterior temporal gyrus of dominant hemisphere
Right superior quadrantanopia
Poor repitition
Fluent speech output
Nephritic
Low complement
Systemic
SLE (can cause anything type of glomerular disease- nephritic or nephrotic) Endocarditis Cryoglobulinemia (usually due to HCV, MM, or waldenstrom macroglobulinemia)
Neprhitic
Normal complement
Primarily kidney
IgA nephropathy
Alport syndrome
Membranoproliferative glomerulonephritis
(idiopathic or SLE, cryos, HCV, HBV); basement membrane dz on bx, “tram tracking”
IgA nephropathy
AKA mesangial proliferative GN
worldwide most common GN
Hematuria concurrent with viral illness or exercise
Only dx with biopsy
Prognosis tied to creatinine, BP, degree of proteinuria
Alport syndrome
Nephritic-normal complement-primarily kidney
AKA hereditary (x-linked) nephritis
chronic
associated with nerve deafness, congenital eye probs (lens, retinas, corneas)
dx renal biopsy
Nephritic
Normal complement
Systemic
Anti-GBM disease
Vasculitides
TTP/HUS
Anti-GBM disease
when associated with pulmonary hemorrhage known as Goodpasture’s
Not vasculitis- no weight loss or fevers
Dx biopsy or serum anti-GBM antibodies
Vasculitides that cause acute glomerulonephritis
Wegener's microscopic polyangiitis PAN Churg-Strauss HSP
RPGN
Rapidly progressive glomerulonephritis Can have features of any cause nephritic syndrome Crescents on biopsy Goodpastures Lupus Wegener's Immune-complex dz
Nephrotic
Primarily kidney
Minimal change disease
Focal and segmental glomerulosclerosis
Membranous nephropathy
MCD associated with:
Drugs: NSAIDS, lithium, sulfa
Lymphoma
Inhaled and contact allergies
MCD findings
Urine sediment with oval fat bodies with “maltese crosses”
Dx renal bx- “no change”
Responds to steroids
Best prognosis of nephrotic syndromes
Bactrim can cause what in the elderly?
Hyperkalemia
High AG and osmolal gap acidosis
ethylene glycol
methanol
Osmolal gap but not AG acidosis
isopropyl alcohol
Calculated osmolar gap =
2[Na+] + glucose/20 + BUN/3
Risk factors for thyroid cancer
FMH thyroid cancer H/o neck radiation Anterior neck pain or dysphagia Respiratory obstruction New nodule age < 20 or > 60 Vocal cord paralysis Nodule firm, fixed, or growing or accompanied by LAD
Medullary thyroid cancer associated with what mutation?
Ret-proto-oncogene (RET)
Causes of high RAI uptake:
Graves Iodine deficiency Hot nodules Toxic multinodular goiter Elevated B-HCG TSH secreting pituitary tumor
Causes of low RAI uptake:
Hashimoto thyroiditis
Other thyroiditites: subacute, postpartum, radiation, amiodarone-induced
Thyroid suppressive meds
Iodine excess
Ectopic thyroid tissue (struma ovarii)
Absent thyroid gland (surgery or radioablation)
Klinefelter syndrome
Small and fibrotic testes 47, XXY with Barr body Gynecomastia and poor social skills Normal arm span High LH and FSH because testes won't respond
Kallman syndrome
Increased arm span
Normal genotype
Impaired smell
LH and FSH low or undetectable
Clinical course of DI after pituitary surgery
First DI (initial stunning)- dilute urine
Then cells die and ADH store is released so SIADH and concentrated urine
Then ADH gone so back to DI
Adrenal steroid pathways
Cholesterol –> Progesterone, 17OH progesterone, DHEA-S
Progesterone –> 11-doxycorticosterone –> aldosterone
17OH progesterone –> 11-deoxycortisol –> cortisol
DHEA –> testosterone
Excess mineralocorticoids cause:
Hypertension, hypokalemia, alkalosis
Schmidt syndrome
Combination of hypothyroidism and adrenal insufficiency
Give steroids first
Pseudoprolactinoma
Can be caused by hypothyroidism- usually prolactin level is < 200
How to dx acromegaly
Check GH levels after a glucose load
High glucose normally would suppress GH
or check IGF-1 level
Cushings disease : DXMZ suppression
Does not suppress with low-dose, but does with high dose
What is nephrogenic DI?
DI (inability to concentrate urine) that does not respond to exogenous vasopressin (problem is in the kidneys)
Features of TTP
Mental status changes Thrombocytopenia Hemolysis Renal dysfunction Fever associated with mitomycin C Rx plasmapheresis
Which type of AML is associated with DIC?
M3
MDS findings
Hypercellular bone marrow with dysplasia in all lines
Microcytic, pseudo-Pelger-Huet cells
Secondary thrombocytosis
caused by iron-deficient anemia
Diseases associated with splenomegaly
CML
CLL
hairy cell leukemia
Lymphoma
CLL
associated with AIHA and ITP
Philadelphia chromosome
better prognosis with CML
worse with ALL
Iron low
TIBC low
Ferritin high
Iron sat low or normal
anemia chronic disease
Normal PT normal or elevated PTT Normal CBC Elevated bleeding time Abnormal RIPA
von Willebrand disease
abnormal PT
Normal PTT
Labs vit K deficiency and FVII deficiency
normal PT and PTT, platelets, and bleeding time
Labs F XIII
pancytopenia
large spleen
dry tap
Hairy cell leukemia
Auer rods
AML
normal PT
abnormal PTT
Labs F VIII
abnormal PT and PTT
Labs F X
Microcytic and slightly hypochromic red cell w/o significant anemia or hemolysis
alpha-thalassemia trait
normal PT
abnormal PTT
no bleeding
Labs F XII
Progressive dysphagia to solids and liquids
achalasia or scleroderma
Progressive dysphagia to solids first, then liquids
cancer or stricture
Intermittent dysphagia to solids
webs or rings
Organophosphate poisoning
DUMBELS
defection, urination, miosis, bronchospasm/bradycardia, emesis, lacrimation, salivation, + fasciculations and weakness