BUN and/or Creatinine Increased: Prerenal Cause

Differential Diagnosis

Renal artery stenosis

Atherosclerotic renal vascular disease


Thromboembolic renal vascular disease

HUS or TTP Sickle cell disease-associated nephropathy

Suggested Additional Lab Testing

Studies that would permit a diagnosis of HUS, TTP, or sickle cell disease are valuable.

Tests that identify a predisposition to thrombosis may also be informative.

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