Specimen Requirements

Specimen Type: Urine, 24-hour

Container/Tube: Aliquot tube

Specimen Volume: 5 mL

Specimen Minimum Volume: 2 mL

Collection Instructions:

1. Add 25 mL of 6N HCl as preservative at the start of collection. Mix well before taking 5-mL aliquot.

2. See Urine Collection in Special Instructions for 24-hour urine collection instructions.

Additional Information: Starting and ending times of collection and 24-hour volume are required.

Performing Laboratory

Measure 24-hour urine volume. Enter volume and hours of collection into LIS. Adjust the pH to <2.0 using 6N HCL. If specimen is cloudy, spin and separate supernatant. Refrigerate specimen until analysis is performed.