MCQ – 90321

A 65-year-old woman television technician undergoes femoral embolectomy and leg fasciotomy. Following surgery, she is noted to have oliguria, and her urine is red. What is the most probable diagnosis

A.	Hematuria secondary to heparin
B.	Embolus of the renal artery
C.	Myoglobinuria
D.	Retroperitoneal hematoma

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Correct Answer � C Explanation

Answer- C

• Patients with sudden severe ischemia are prone to “ischemia-reperfusion” syndrome.
• Hyperkalemia, metabolic acidosis, and myoglobinuria (red urine, clear plasma) are the key features of the syndrome.
• Renal tubular acidosis results in myoglobin deposition in the renal tubules