A client asks the nurse why a creatinine clearance test is accurate. The nurse is most correct to reply which of the following?
A) "Creatinine is broken down at a constant rate, and the total amount is excreted by the kidney."
B) "Creatinine is metabolized in the liver and excreted by the kidney at a regular rate."
C) "Creatinine is a stress-related response that is excreted by the kidney."
D) "Creatinine is found in the urine to make the urine acidic and can be measured."
A
Feedback:
A creatinine clearance test is used to determine kidney function and creatinine excretion. Creatinine results from a breakdown of phosphocreatine. It is filtered by the glomeruli and excreted at a consistent rate by the kidney.
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