Laboratory results come back on a newly admitted patient: Serum blood urea nitrogen,64 mg/dL; serum creatinine,2.4 mg/dL; urine osmolality,210 mOsm/kg; specific gravity,1.002; and urine sodium,96 mEq/L.The patient's urine output has been 120 mL since admission 2 hours ago.These values are most consistent with which diagnosis?

Question

Quizplus · Accepted Answer

Urinary sodium less than 10 mEq/L (low)suggests a prerenal condition.Urinary sodium greater than 40 mEq/L (in the presence of an elevated serum creatinine and the absence of a high salt load)suggests intrarenal damage has occurred.The urine output does not seem to suggest oliguria.The other options do not fit the data as presented.

Laboratory Results Come Back on a Newly Admitted Patient: Serum