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Acute Kidney Injury Practice Test
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Q1
A 58-year-old patient undergoes abdominal aortic aneurysm repair. Estimated blood loss is 2.2 L; they receive 3 units packed RBCs and 3 L crystalloid. Post-op, they are oliguric and hypotensive. Vitals: BP 86/52 mm Hg, HR 122/min. Exam shows cool extremities and dry mucous membranes; lungs clear. Labs: creatinine rises from 1.1 to 2.5 mg/dL, BUN 62 mg/dL. Urinalysis is bland. The most likely cause of this acute kidney injury is reduced kidney perfusion due to perioperative volume loss and hypotension.
A 58-year-old patient undergoes abdominal aortic aneurysm repair. Estimated blood loss is 2.2 L; they receive 3 units packed RBCs and 3 L crystalloid. Post-op, they are oliguric and hypotensive. Vitals: BP 86/52 mm Hg, HR 122/min. Exam shows cool extremities and dry mucous membranes; lungs clear. Labs: creatinine rises from 1.1 to 2.5 mg/dL, BUN 62 mg/dL. Urinalysis is bland. The most likely cause of this acute kidney injury is reduced kidney perfusion due to perioperative volume loss and hypotension.