UWorld 1 Flashcards
tx: lyme dz
mild: doxy
severe (encephalitis/carditis): ceftriaxone
preg/lactating: amoxicillin
< 8: amoxicillin or cefuroxime
if test is negative, what is chance of having the dz
1 - NPV
false negative/positive ratio
false negative: 1 - sensitivity
false positive: 1 - specificity
when to use DBT
borderline, self injury pts
mgmt: preterm labor by dates
34 - 36.6: +/- corticosteroids (betamethasone), PCN if GBS(+)/unknown
32 - 33.6: add tocolytics (indomethacin, nifedipine)
< 32: add magnesium sulfate
why do you give mg sulfate for preterm labor
fetal neuroprotection (eg cerebral palsy)
delayed and diminished carotid pulse (name/a/w)
pulsus parvus et tardus
AS
prominent capillary pulsations in fingertips
AR (from widened pulse pressure)
> 10 mm Hg change in systolic with inspiration
pulsus paradoxus
cardiac tamponade
severe asthma/COPD
risks of tamoxifen
hot flashes (MC) endometrial CA DVTs
tx: hypercalcemia
malignancy: bisphosphonates
CHF/renal fail: loops
granulomatous dz: corticosteroids
hypertonic newborn, feeding difficulty, spasms
think neonatal tetanus
age for febrile seizures
3 mo to 5 yrs
newborn: FTT, b/l cataracts, jaundice and hypoglycemia
galactosemia (galactose-1-phosphate uridyl transferase def)
when do you get surgery involved in c. diff
toxic megacolon/severe ileus
WBC > 20,000
lactate > 2.2
strep viridans species
s. sanguinis mitis oralis mutans sobrinus milleri
when to cervical cerclage
cervix < 2.5 cm
cause of zenker diverticulum
UES dysfxn and esophageal dysmotility
when do you see low and high DLCO?
low: emphysema, pulm fibrosis
high: asthma
delayed umbilical cord separation
leukocyte adhesion deficiency
baby/toddler: leukocytosis with neutrophilia
LAD
baby: tons of cat+ dz, normal leuk/B/T levels
chronic granulomatous dz
tx: RA
DMARDs
MTX
TNF-Is
sulfasalazine
AEs: MTX
hepatotoxicity stomatitis (mouth ulcers) pancytopenia lung fibrosis alopecia
MTX rescue
leucovorin
felty syndrome
severe, long standing RA
neutropenia + splenomegaly
therapy for phobias
exposure therapy (behavioral)
BUN/Cr and GI bleeds
BUN and BUN/Cr increased in upper (but not lower) GI bleeds
how to monitor DKA tx
serum anion gap
direct assay of beta-hydroxybutyrate (ketone)
mgmt: uterine inversion
immediate manual replacement if can't replace, try uterotonics uterotonics once it's replaced (remove placenta after it's replaced if still attached) if nothing works -- laparotomy
malaria prophylaxis for people going to India
mefloquine
atovaquone-proguanil
doxy
when to give mefloquine
2 weeks before, all during, 4 wks after
when can you give chloroquine
S America/caribbean
things that cause pain when you have sphincter of Oddi problems
fatty meals
opioids
catching sensation in knee
meniscal tear
tests for meniscal tear
Thessaly
McMurray
tx: strabismus
patch or blur the normal eye to make them use the bad one
urticaria, fever, joint pain, 1 wk post PCN or TMP-SMX
serum sickness-like reaction (type III h/s)
GCS things
eye opening
verbal response
motor response
GCS: eye scale
1: none
2: to pain
3: to verbal
4: spontaneous
GCS: verbal scale
1: none
2: incomprehensible sounds
3: inappropriate words
4: disoriented/confused
5: oriented
GCS: motor scale
1: none
2: extension
3: flexion
4: withdraws
5: localizes
6: obeys
causes of normal anion gap metabolic acidosis
diarrhea RTAs carbonic anhydrase inhibitors fistulas ureteral diversions
MC complication of flu
secondary bacterial pneumonia
MCCs post-flu pneumonia
staph aureus
strep pneumo
anemia of chronic disease: which arthropathies
RA
SLE
(not OA!)
Gottron’s papules
violaceous, scaly papules over joints
a/w dermatomyositis
meniere’s triad
tinnitus
episodic vertigo
sensorineural hearing loss
cause of meniere’s
increased vol/P of endolymph
dx: CGD
abnormal oxidative burst (dihydrorhodamine)
greatest RF for suicide
prior attempt
rough, scaly, non healing ulcer by scar
squamous cell carcinoma
increased calcitonin
medullary thyroid cancer
psammoma bodies
papillary thyroid cancer
thyroid nodule invades tumor capsule/blood vessels
follicular thyroid cancer
tx: aortic dissection
labetalol, or other BB
hydralazine and nitroprusside can have reflex tachy
acid base in mesenteric ischemia
metabolic acidosis (from high serum lactate)
illness anxiety d/o vs somatic symptom d/o
fear of having a serious illness despite few/no sx and negative tests
vs
anxiety or preoccupation w/ 1+ sx
toddler milestones: ages
12 mo 18 mo 2 yr 3 yr 4 yr 5 yr
toddler milestones: gross motor
12 mo: stands, first steps, throws a ball 18 mo: runs, kicks ball 2 yr: stairs (2 feet), jump 3 yr: stairs, tricycle 4 yr: balance/hop on one foot 5 yr: skip, catch ball (2 hands)
toddler milestones: fine motor
12 mo: pincer grasp 18 mo: 2-4 cube stack, strip 2 yr: 6 cubes, copy line 3 yr: copy circle, utensils 4 yr: copy cross 5 yr: copy square, tie shoelace, dress/bathe, letters
toddler milestones: language
12 mo: 1st real words (not mama/dada) 18 mo: 10 - 25 words, 1+ body part 2 yr: 50+ words, 2 word phrases 3 yr: 75% intelligible, 3 word sentences 4 yr: colors, 100% intelligible 5 yr: count to 10, 5 word sentences
toddler milestones: soc/cog
12 mo: separation anx, follow 1 step commands
18 mo: mine, pretends
2 yr: 2 step commands, parallel play, start potty train
3 yr: knows age/gender, imaginative play
4 yr: cooperative play
5 yr: friends, potty trained
warning signs for HA (when to MRI)
neuro: seizure, FND, LOC
changes from before/new kind
new onset > 40 yo
ruddy baby w/ hyperglycemia, hyperbili, resp distress
neonatal polycythemia (> 65% crit)
causes: neonatal polycythemia
intrauterine hypoxia (mom w/ DM, HTN, smoker), IUGR or genetic/metabolic
electrolytes in addisons
hyponatremia, hyperkalemia (renal Na loss, no aldosterone)
hypoglycemia (no cortisol)
CSF: bact meningitis
WBC > 1000
glucose: < 40
protein: > 250
CSF: viral meningitis
WBC 100 - 1000
glucose: 40 - 70
protein < 100
CSF: Guillain Barre
WBC: 0 - 5
glucose: 40 - 70
protein: 45 - 1000
when is baby reflux pathologic?
GERD:
FTT
significant irritability
Sandifier syndrome
milk allergy:
vom/eczema/bloody stool
baby complications of DM mom (1st TM)
congenital heart dz
NTD
small L colon
spontaneous abortion
baby complications of DM mom (2/3 TM)
hyperinsulinemia polycythemia (up met demand --> hypoxia) organomegaly hypoglycemia brachial plexopathy, clavicle frx, perinatal asphyxia (macrosomia, shoulder dystocia)
what is an S4 from
blood entering a stiff ventricle (hypertrophy, MI)
erysipelas vs cellulitis
streg pyo vs strep or staph superficial vs deep raised vs not sharp borders vs not rapid vs slow
whats a furuncle (hint, its not a dog/family member)
folliculitis into dermis –> abscess
HACEK orgs
haemophilus aphrophilus aggregatibacter actinomysetemcomitans cardiobacterium hominis E corrodens kingella kingae
when do you have mild EtOH withdrawal (and what constitutes that?)
6 - 24 hr
anxiety, tremor, sweating, GI, palpitations
when can you have seizures from EtOH withdrawal
12 - 48 hrs
alcoholic hallucinosis vs delirium tremens
12- 48 hr vs 48 - 96
stable vitals vs fever, tachy, HTN, AMS
path: trigeminal neuralgia
compression of nerve root
patchy, alveolar infiltrate, not restricted by anatomical borders
pulmonary contusion
-pulmonary contusion
tachypnea
tachycardia
hypoxia
when do you give tetanus immune globulin?
only to people who are uncertain or had < 3 toxoid doses with dirty/severe wound
pulm HTN criteria
mean pulm arterial P > 25 mmHg @ rest or
30 with exercise
meds that cause hyperkalemia
non selective BB ACE/ARBs K-sparing diuretics cardiac glycosides (Digoxin) NSAIDs
livedo reticularis, with possible AKI or pancreatitis
cholesterol embolism (atheroembolism)
chronic giardiasis
IgA def
preeclampsia: baby risks
chronic uteroplacental insuff –> growth restriction/LBW
not hypoxia, which is due to acute UPI
preeclampsia: mom risks
placental abruption
DIC
eclampsia
panic d/o vs somatic sx d/o
panic is acute/episodic vs somatic is continuous
mgmt: subcutaneous emphysema
get a CXR to make sure the air hasn’t caused a pneumo
drugs causing NMS
anti-psych
antiemetics (dopa ants)
dopa ag withdrawal
tx: NMS
stop drug (or restart dopa ags)
supportive (IVF, cooling)
dantrolene or bromocriptine
viral vs bacterial pneumonia
less leuks < 15 vs more > 15
b/l diffuse infiltrate vs lobar infiltrate
H/S: poison ivy
type IV (delayed, T cell/mac mediated)
H/S: AI hemolytic anemia
type II (cytotoxic, IgG/IgM Ab mediated)
H/S: Goodpasture syndrome
type II (cytotoxic, IgG/IgM Ab mediated)
H/S: uticaria
type I (immediate, IgE mediated)
H/S: PSGN
type III (immune complex, Ab-Ag deposition)
H/S: PPD
type IV (delayed, T cell/mac mediated)
H/S: serum sickness
type III (immune complex, Ab-Ag deposition)
H/S: SLE GN
type III (immune complex, Ab-Ag deposition)
fetal non-stress test: what is a reactive result?
110 - 160 bpm mod variability (6 - 25/min) 2+ accelerations in 20 min (each 15+ high and 15+ s long)
causes of non-reactive non-stress test
fetal sleep (MC)
fetal hypoxia (from UPI)
fetal cardiac abnormalities
fetal neuro abnormalities
mgmt: nonstress test
reactive? great, 20 min is good
nonreactive? extend to 40 - 120 min (feti only sleep 40 min at a time)
all nonreactive need follow up biophysical profile or contraction stress test
what makes a pleural effusion complicated?
bacteria cross into pleural space (as opposed to sterile exudate)
uncomplicated vs complicated pulm eff pleural fluid analysis
uncomp:
pH > 7.2
glucose > 60
WBC < 50,000
comp:
pH < 7.2
glucose < 60
WBC > 50,000
both have negative gram stain/Cx (tho comp is usually false due to low bact count)
complicated pleural effusion vs empyema
same fluid analysis:
pH < 7.2
glucose < 60
WBC > 50,000
but empyema has frank pus (gross) and positive gram stain/Cx
tx: pleural effusions
uncomplicated: Abx
complicated: Abx + drainage (paracentesis?)
empyema: Abx + chest tube
time frames gonococcal vs chlamydial neonatal conjunctivitis
GC: 2 - 5 days
chlam chlam: 5 - 14 days
ppx protocol for neonatal conjunctivitis
everyone gets topical erythromycin within an hour of being born to prevent GC
causes of fetal tachycardia
maternal fever
maternal hyperTh
meds (terbutaline)
placental abruption
mgmt: lead poison suspicion in kid
(you can fingerstick to screen if you want but still have to do this)
- draw venous blood lead levels
- undetectable: do nothing
- mild (5-44): repeat in < 1 month
- mod (45-69): DMSA (succimer)
- severe (>70): dimercaprol + EDTA
all humoral immuno is normal, but IgE is up
Job syndrome (hyper-IgE syndrome)
all humoral immuno is low
Bruton’s (X-linked) agammaglobulinemia
hyper IgM (CD40 ligand) def vs common variable immunodef
hyper IgM has high IgM
CVI has low IgM
immune cells affected in DiGeorge
T cells (not B)
SCID vs Bruton’s agammaglobulinemia
SCID has low B, Igs and T
Bruton has low B, Igs (T fine)
criteria for home O2
PaO2 < 55 or SaO2 < 88%
if have cor pulmonale, RHF, or crit > 55:
PaO2 < 59 or SaO2 < 89
mgmt: suspect VSD
echo:
small defects may close on their own (75% do by 2)
large may need surgery
when is papilledema a contraindication for LP?
non-communicating/obstructive hydrocephalus
mass lesion
brain mass looks like heterogenous butterfly
glioblastoma multiforme
multiple round brain masses
think mets
uniform contrast enhancement brain mass
think abscess
SCC from burn wound
Marjolin ulcer
whooshing sound in the ear (name)
pulsatile tinnitus
OSA: path of complications
apnea –> hypoxia –> up EPO production –> polycythemia
up CO2 –> acidosis –> retain bicarb (down Cl)
what happens when you eat tyramine foods w/ MAO-Is
HTN crisis (HTN, diaphoresis, blurry vision)
mgmt: chronic HCV
sofosbuvir (if can)
if not, prevent further liver damage w/ Hep A/B vaccinations and keeping an eye on complications (cirrhosis, varices)
definition of fetal growth restriction
U/S estimated weight < 10th percentile for gestational age
symmetric vs asymmetric fetal growth restriction
symmetric: see it 1st TM; global growth lag
asymmetric: see in 2nd/3rd; head-sparing growth lag
causes of fetal growth restriction
symmetric: chromosome abnorm, congenital infection
asymmetric: UPI, maternal malnutrition
normal preg physio: kidneys
up renal blood flow, GFR, BM permeability –>
down serum BUN, Cr
up renal protein excretion
ddx hirsutism
PCOS
21-hydroxylase def
androgen secreting tumors (often ovarian)
Cushing syndrome
MCC congenital hypothyroidism
thyroid dysgenesis
dx: biliary atresia
- U/S (absent/weird GB)
- scintigraphy (no tracer from liver to bowel)
- *GS: cholangiogram
tx: biliary atresia
Kasai procedure (hepatoportoenterostomy) eventually liver transplant
loss of pain/temp in “cape” distribution
syringomyelia (fluid filled cavity in spinal cord)
syringomyelia a/w
arnold chiari malformation type 1
vit def: angular cheilosis, stomatitis, glossitis, seborrheic dermatitis
riboflavin (B2)
vit def: punctate hemorrhages, gingivitis, corkscrew hair
vit C (ascorbic acid)
vit def: cheilosis, stomatitis, glossitis, confusion
pyridoxine (B6)
vit def: dermatitis, glossitis, diarrhea, delusions
niacin (B3)
why do you get hyponatremia in CHF
low CO –> up renin, NE and ADH –> retains water, dilutes blood
sunburn rash w/ palm/sole desquamation
TSS
coalescing erythematous macules, desquamation, bullae and mucositis
SJS (<10%)/TEN (>30%)
when not to give nitrates in MI
hTN
RV infarct
severe AS
seborrheic dermatitis a/w
HIV
Parkinsons