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Step 1 practice Qnz

2354 Views 4 Replies 2 Participants Last post by  aktorque
A 26-year-old patient presents to your office with a chief complaint of polyuria and polydipsia. He has also noticed an increase in his skin tone, but has not been outside in the sun for any extended period of time. He mentions that he has early-morning swelling in his legs and finds himself needing to sleep on two pillows to get comfortable at night; you suspect that this discomfort is due to congestive heart failure. What is the most likely diagnosis?
A Addison's disease
B Cushing's syndrome
C Diabetes mellitus
D Hemochromatosis
E Wilson's disease


While on the Medicine service, a third-year medical student admits a 63-year-old woman with longstanding hypertension, diabetes, and hyperlipidemia. The woman was seen in the emergency room, where she was noted to have vomiting, left–sided Horner's syndrome, and loss of facial sensation on the left, but loss of body sensation on the right. A diffusion-weighted MRI and MRA are ordered. Before the radiologic studies are performed, the team asks the medical student where the problem lies. The best explanation for this patient's stroke presentation is occlusion of which artery?
A Left middle cerebral artery
B Right middle cerebral artery
C Left anterior cerebral artery
D Right anterior cerebral artery
E Left posterior cerebral artery
F Right posterior cerebral artery
G Left posterior inferior cerebellar artery
H Right posterior inferior cerebellar artery

An 18-year-old female presents to your office in respiratory distress after taking a couple of aspirins for a headache. Upon further questioning her, you discover that she has a history of asthma and nasal polyps. Why did aspirin ingestion by this patient result in respiratory distress?

A Leukotrienes production
B Phospholipase A2 deficiency
C Prostacyclin production
D Prostaglandin production
E Thromboxane production

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Q1-patient has CHF+dark skin+polydipsia &polyuria(maybe secondary to DM)
we can see these sym together in hemochromatosis
Q2-Brain stem lesion can produce ipsilateral facial sensory deficit & contralateral body sensory deficit.PICA is one of the artery that perfuse brain stem.
Q3-asprin inhibits COX enzyme so PGs & TXs can't produce but lipoxygenase overactivate & produce LTs(they play important role in asthma)
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