Serum and urine are required. Serum must be drawn within 3 days of urine collection.
Serum
Specimen must arrive within 2 hours of draw.
Container/Tube: Serum gel tube
Specimen Volume: 2.5 mL of serum
Transport Temperature: Ambient
Collection Instructions: Allow blood to clot for 30 minutes. Spin in centrifuge after 30 minute interval. If there is a delay in transport of ≥2 hours, send specimen refrigerated.
Note: Patient’s height and weight are required.
Urine
Submit an entire 24-hour urine collection in a urine container. No preservative. Send specimen refrigerated.
Note: 1. Test can also be performed on urine collected with boric acid.
2. Patient’s height and weight are required.
3. Starting and ending times of collection are required.
4. Follow instructions in Urine Collections in Special Instructions.
Rate, Enzymatic
75-125 mL/minute
Monday through Sunday
81050-Urine timed measurement
82575-Creatinine