Specimen Requirements

Blood and urine are required. Draw blood during 24-hour urine collection.

Specimen Type: Blood

Container/Tube:

Preferred: Light-green top (lithium heparin gel)

Acceptable: Gold top, serum gel

Specimen Volume: Full tube

Specimen Minimum Volume: 2 mL

Collection Instructions:

1. Send specimen in original tube.

2. If there is a delay in transport of >1 hour, centrifuge tube.

Specimen Type: Urine, 24-hour collection
Container/Tube: Plastic container
Specimen Volume: Entire 24-hour collection
Collection Instructions:
1. No preservative. 
2. Refrigerate specimen during collection.
Additional Information: 
1. Starting and ending times of collection are required.
2. Follow instructions in Urine Collection in Special Instructions.