Saint Luke's Regional Laboratories

Plastic 24 hour urine container (NO PRESERVATIVE) or pour-off bottle

Entire 24 hour urine collection. Alternately, a pour-off sample from a 24 hour urine collection is acceptable but client must measure 24 hour urine volume and indicate the amount on the requisition.

Entire 24 hour urine collection or 20 - 25 mL (if a pour-off sample is submitted)

24 Hour Urine Collections:
1. To begin collection, empty the bladder and discard this urine. Record this time and date as the start of the collection.
2. 24 hour urine collections should be started Sunday through Thursday.
3. Collect all urine excreted during the next 24 hours in the urine collection container.
4. Exactly 24 hours after the collection was begun, empty the bladder for the last time. Add this urine to the 24 hour urine container. The collection is finished.
5. The container should be refrigerated during and after the 24 hour collection period until it can be brought to Saint Luke’s Regional Laboratories.

The starting and ending times of collection are required.

Refrigerated

82570 - Creatinine Urine Quant 24 Hour (EAP 30011960)
81050 - Urine Volume Measurement (EAP 30033360)

Monday through Sunday

Alkaline Picrate method, IFCC IDMS Standardized