24-hour urine container

Entire Collection

Entire Collection

1. Please click the Mayo link for a complete list of acceptable preservatives.
2. Refrigerate the container during the collection period.
3. The 24-hour volume is required.
4. The start and end dates and times of collection are required.
5. Please click the Urine Collection and Patient Instructions for 24-Hour Urine Collection links for additional collection instructions.

Refrigerate

1. Measure and record the total volume of the urine collection.
2. Vigorously shake the entire container of urine to ensure that all of its contents are adequately mixed before pouring off aliquots.
3. Pour off two aliquots into clean, unused urine cups.
4. One aliquot should not be acidified—label it as such. This is done in case add-ons are requested that cannot have acidified urine.
5. Acidify the other aliquot to a pH of < 1.0.
6. Mix well and pour off a 2.0 mL acidified aliquot into a false bottom tube.
7. Centrifuge the false bottom tube.