NBME exam Flashcards
If you cut obturator nerve, what muscle is paralyzed?
adductor brevis
What failed to fuse if the newborn has a tuft of hair in the lumbar spine with lack of spinous processes?
fusion of sclerotomes
What vein takes tumour cells from the breast to the thoracic vertebrae?
intercostal
which beta blocker causes prolonged QT?
sotalol
what is lice called?
pediculus humanus capitis
how do hmg coa reductase inhibitors work?
increase LDL receptors on the hepatocytes
how does E coli become resistant to ciprofloxacin?
alternation in DNA gyrase
what does histamine cause?
increased lymph flow
which chemotherapy is most likely to cause bilateral intersititial alveolar edema and bilateral pleural effusions?
doxorubicin
what does pulmonary capillary wedge pressure measure?
left atrial pressure
in SIADH, is your urine osmolality more or less than plasma?
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If someone with myocardial infarction become hypotensive, what will cause swelling of parenchymal cells in vital organs within minutes?
decreased intracellular ATP concentrations
pufferfish tetrodotoxin blocks what type of channels causing tingling around lips and mouth
sodium
blood pressure cuff inflated then released, blood flow increases temporarily then normalizes, what humoral substance is responsible for this?
adenosine
what does the tetanus toxin bind to?
synaptobrevin
if your glucose doesn’t go up after glycerol or fructose, but does after galactose then you have a defect in what liver metabolic pathway?
gluconeogenesis
what virus can’t form plaques when dried or exposed to ph of 5?
coronavirus
what is the p value calculated from the chi square test?
0.05<p></p>
immobolization after fracture is most likely to cause?
decreased blood volume
The atypical lymphocytes seen in EBV are what types of cells?
CD8+ T lymphocytes
what complication can you get with pneumothorax?
respiratory acidosis
right sided hearing loss and mass cerebellopontine angle?
neural crest cells
what do pineal tumours cause?
parinauds syndrome (paralysis of upward gaze), headaches because pressing on third ventricule outlet, nausea, vomiting
what bug causes food poisoning with raw oysters?
vibrio parahaemolyticus
why is the Cr clearance test less good than inulin for estimating GFR?
because cr is secreted by the proximal tubule
what is alpha?
type 1 error- reject the null hypothesis when its true-when you think theres a difference but there isnt
what is beta
probability of type 2 error, when you accept null and think theres no difference, but there is a difference
