What should a nurse aide instruct a client to do when collecting a 24-hour urine sample?

When collecting a 24-hour urine sample, it is essential to discard the first voided urine. This initial voiding is not included in the 24-hour collection because it helps to establish a baseline. By starting the collection period after the first void, the sample can effectively capture the urine produced during the subsequent 24 hours, leading to a more accurate representation of kidney function and any substances being measured.

Additionally, while collecting a 24-hour urine sample, saving all urine produced over the 24-hour period is crucial for the overall process; however, the collection starts fresh after discarding the first void. Proper storage conditions, such as refrigeration, play an important role in preserving the integrity of the sample, but this does not negate the necessity for the initial discard. Using a special bottle for the first void is also unnecessary, as the first sample is not collected for analysis within the specified 24-hour timeframe. Thus, discarding the first voided urine is a key step in the correct procedure for a 24-hour urine sample collection.