A patient has been admitted with muscle trauma and crush injuries.The nurse understands that this patient is at high risk for the development of acute kidney injury secondary to rhabdomyolysis.Which findings would suggest the patient is developing this complication?

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Circulating myoglobin can lead to the development of kidney failure by three mechanisms: decreased renal perfusion,cast formation with tubular obstruction,and direct toxic effects of myoglobin in the kidney tubules.Dark tea-colored urine suggests myoglobinuria.The most rapid screening test is a serum creatine kinase level.Urine output and serial creatine kinase levels should be monitored.Hypoxemia and diminished pulses are not associated with rhabdomyolysis.

A Patient Has Been Admitted with Muscle Trauma and Crush