A nurse is collecting a specimen for urinalysis and culture from a client who has an indwelling urinary catheter. Which of the following actions should the nurse take during collection?

Rationale: A. Clamp the catheter distal to the injection port: Clamping the catheter allows urine to accumulate in the tubing, ensuring a fresh specimen can be obtained from the sampling port rather than from stagnant urine in the drainage bag, which could be contaminated. B. Drain the specimen from the drainage bag: Urine in the drainage bag may be old and contaminated, which can lead to inaccurate culture results. Specimens should be collected aseptically from the catheter sampling port. C. Collect 2 mL of urine for each specimen: For accurate urinalysis and culture, a larger volume typically 3–10 mL for culture and 10–15 mL for routine urinalysis is recommended to ensure enough specimen for testing and repeat analysis if needed. D. Obtain the urinalysis specimen before the culture specimen: Culture specimens should be collected first to prevent contamination. Performing urinalysis first can alter the bacterial composition of the sample and compromise culture accuracy.