A nurse is reviewing laboratory findings for four clients. Which of the following clients has manifestations of acute kidney injury?

 

Choice A reason: A strong odor in the first-voided urine can be normal, especially if it's concentrated after a night's sleep.

Choice B reason: An output of 175 mL in 8 hours is concerning, as it indicates oliguria, which is a urine output of less than 400 mL in 24 hours, and can be a sign of worsening renal function.

Choice C reason: An output of 2,200 mL in 24 hours is within normal urine output ranges, which is typically 800 to 2,000 mL per day for an average adult.

Choice D reason: Urine becoming cloudy after sitting for a period is common due to precipitation of salts and proteins at lower temperatures.

Choice A reason: The normal range for serum creatinine in adult females is approximately 0.6–1.1 mg/dL. A level of 1.8 mg/dL is elevated and indicates impaired kidney function, which is a risk factor for AKI.

Choice B reason: Normal BUN levels are generally between 6 to 24 mg/dL⁸. A BUN level of 200 mg/dL is significantly elevated and suggests kidney dysfunction, which can lead to AKI.

Choice C reason: Serum osmolality in the normal range, which is typically between 275 to 295 mOsm/kg H2O for adults⁹[13][^10^][14][16], does not indicate an increased risk of AKI.

Choice D reason: The normal range for serum magnesium is typically 1.7 to 2.2 mg/dL or 0.85 to 1.10 mmol/L. A level of 2.0 mEq/L (which is equivalent to 2.0 mg/dL) is within the normal range and does not indicate an increased risk for AKI.