The nurse plans to collect a 24 hour urine specimen for a creatinine clearance test. Which instruction should the nurse provide to the adult male client?

A. Urinate immediately into a urinal, and the laboratory will collect the specimen every 6 hours, for the next 24 hours: Intermittent collection is not used for a 24-hour urine test; continuous collection of all urine after the start time is required to accurately measure creatinine clearance. B. Cleanse around the meatus, discard first portion of voiding, and collect the rest in a sterile bottle: This procedure is for a clean-catch or midstream urine specimen, not a 24-hour collection, and does not provide the total volume needed for creatinine clearance. C. For the next 24 hours, notify nurse when the bladder is full, and the nurse will collect catheterized specimens: Catheterization is unnecessary for routine 24-hour urine collection and increases infection risk. The client can collect urine in a provided container. D. Urinate at a specified time, discard this urine, and collect all subsequent urine during the next 24 hours: Discarding the first void establishes the start of the collection period, and collecting all urine for the next 24 hours ensures accurate measurement of creatinine clearance.