When instructing patients on how to collect a 24-hour urine specimen, which of the following should be collected?
i. first morning void on the first day
ii. all urine after the first void the first day
iii. first morning void on the second day
iv. last void on the second day

Question

Quizplus · Accepted Answer

The correct procedure for collecting a 24-hour urine specimen includes discarding the first morning void on the first day (i) and then collecting all subsequent urine (ii), including the first morning void on the second day (iii). This ensures that the collection represents exactly 24 hours of urine output. The last void on the second day (iv) is not typically included unless it coincides with the first morning void.

When Instructing Patients on How to Collect a 24-Hour Urine