A patient with suspected Cushing syndrome is prescribed a 24-hour urine collection. What should the nurse explain to the patient about the reason for this urine collection?
A. At least 2000 mL of urine is required to perform the test.
B. It measures the amount of cortisol in the urine over 24 hours.
C. It identifies urine specific gravity changes over a 24-hour period.
D. The 24-hour timeline reduces unwanted effects of medications excreted in the urine.
Answer: B
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