Test Code LAB141 Uric Acid, Plasma or Serum
Reporting Title
Uric Acid
Methodology
Roche Diagnostics, Uricase-RMH, GMC, DH, DMH, MGH, MH, PMH, SH
Useful in diagnosis and treatment of metabolic and renal disorders, including renal failure, gout, leukemia, starvation, or other wasting conditions.
VWH Lab:
URIC reagent, when used in conjunction with SYNCHRON LX® System(s), UniCel® DxC 860i System(s) and SYNCHRON® Systems Multi Calibrator, is intended for the quantitative determination of Uric Acid concentration in human serum, plasma or urine.
Performing Laboratory
OhioHealth Laboratory Services- RMH, GMC, DH, DMH, MGH, MH, SH, PMH and VWH Core Laboratories
Specimen Requirements
Collection Instructions:
1. Serum and Plasma gel tubes should be centrifuged within 2 hours of collection.
2. Red-top tubes should be centrifuged and aliquoted within 2 hours of collection.
Submit only 1 of the following specimens:
Preferred:
Serum
Draw blood in a gold-top serum gel tube(s). Spin down and send 1 mL of serum refrigerated.
Note:
1. A speckled-top serum gel tube (s) or a plain, red-top tube(s) is also acceptable.
2. Indicate serum on request form.
3. Label specimen appropriately (serum).
Alternate (Preferred for VWH Lab):
Plasma
Draw blood in a mint green-top (heparin) gel tube(s). Spin down and send 1 mL of heparinized plasma refrigerated.
Note:
1. Indicate plasma on request form.
2. Label specimen appropriately (plasma).
VWH Lab:
3. Tubes of blood are to be kept closed at all times and in a vertical position. It is recommended that the serum or plasma be physically separated from contact with cells within two hours from the time of collection.
4. Separated serum or plasma should not remain at room temperature longer than 8 hours. If assays are not completed within 8 hours, serum or plasma should be stored at +2°C to +8°C for up to 48 hrs.
Roche Specimen Stability Information
Specimen Type | Temperature | Time |
---|---|---|
Serum or plasma | Refrigerated | 5 days |
Ambient | 3 days | |
Frozen | 6 months |
Specimen Transport Temperature
Refrigerate: OK
Ambient: OK
Frozen: OK
Reference Values
Males
0-31 days: 1.2-3.9 mg/dL
32 days-12 years: 2.0-5.5 mg/dL
≥13 years: 3.4-8.5 mg/dL
Females
0-31 days: 1.0-4.6 mg/dL
32 days-12 years: 2.0-5.5 mg/dL
≥13 years: 2.4-7.0 mg/dL
Note: Alpha-Methyldopa, desferoxamine, and calcium-dobesilate (eg, Dexium®) at therapeutic levels can falsely lower results.
VWH Lab Only:
Serum or Plasma (Male): 4.4 – 7.6 mg/dL
Serum or Plasma (Female): 2.3 – 6.6 mg/dL
Day(s) Test Set Up
Monday through Sunday; Continuously
Test Classification and CPT Coding
84550