SURGERY MCQ-4

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Posted by GR from IP 70.20.74.18 on June 02, 2012 at 01:57:55:

A 60 YR OLD AFRICAN AMERICAN MALE WITH TYPE 2 DM AND HTN has been on glyburide and sustained release verapamil for 5 yrs.since starting him on captopril 6wks ago, you have monitored his serum creatinine levels, which have risen from 1.4mg/dl to 3mg/dl.

which one of the following would indicate a diagnosis of interstitial nephritis as opposed to an ischemic cause of acutely worsening renal function:

a) a BUN/creatinine ratio350mosm/kg
b) mild to moderate proteinuria on a urine dipstick
c) urine sediment containing wbcs, wbc casts, rbc, eosinophil and eosinophil casts

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