Specimen Requirements

2 mL from a 24-hour urine collection. No preservative. Mix well before taking 2-mL aliquot. (An entire 24-hour urine collection is also acceptable.) Refrigerate specimen during collection, and send specimen refrigerated in plastic urine container.

Note:  1. If unable to refrigerate specimen, 10 g of boric acid should be added to container at start of collection.

2. 24-Hour volume is required on request form for processing.

3. See “Urine Collection” in “Special Instructions” for 24-hour specimens.

4. Label specimen with patient’s name (first and last), date of birth, date and time of collection, and collector’s initials.

Specimen stability: 3 days refrigerated at 2-8°C

                                  1 year frozen at ≥-20°C

Minimum volume:   2 mL