Take a look at some initial diagnostic testing below.
Urinalysis/microscopy, urine electrolytes
The urine sediment is bland, with rare WBCs, rare non-dysmorphic RBCs, and no casts.
You discover that patient’s baseline creatinine is 0.8 mg/dL. She is currently making 20 mL of urine per hour.
What is highest on your differential diagnosis for this patient’s acute kidney injury?
Acute interstitial nephritis (AIN)
Thrombotic microangiopathy (TMA)
Congestive heart failure
Acute tubular necrosis (ATN)
Rapidly progressive glomerulonephritis (RPGN)
Urinary tract obstruction
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