Specimen Requirements

Plasma or serum and urine are required. Draw blood during 24-hour urine collection.

Specimen Type: Plasma or serum
Container/Tube: Light-green top (lithium heparin gel), gold or tiger top (serum gel)

Specimen Volume: Full tube

Specimen Type: Urine
Container/Tube: 24-hour, plastic urine container

Specimen Volume: Entire collection
Collection Instructions:

1. Collect a 24-hour urine specimen.
2. No preservative.

3. Refrigerate specimen during collection.
Additional Information:
1. Starting and ending times of collection are required.
2. Follow instructions in Urine Collection in Special Instructions.