URIC ACID, SERUM
Mnemonic: URIC
CPT Code: 84550
Charge Code
70111701
Specimen Type
PLASMA/SERUM
Specimen Container
GREEN, YELLOW, RED
Specimen Handling
SEPARATE FROM CELLS WITHIN 2 HOURS. KEEP CAPPED AND VERTICAL.
Unacceptable Conditions
WHOLE BLOOD, GREY TOP TUBE, VISUAL HEMOLYSIS, LIPEMIA, ICTERIC.
Temperature
REFRIDGERATED
Methodology
CHEMICAL METHOD: URIC ACID IS OXIDIZED BY URICASE TO PRODUCE ALLANTOIN AND HYDROGEN PEROXIDE. THE HYDROGEN PEROXIDE REACTS WITH 4-AMINOANTIPYRINE (4-AAP) AND 3,5-DICHLORO-2-HYDROXYBENZENE SULFONATE (DCHBS) IN A REACTION CATALYZED BY PEROXIDASE TO PRODUCE A COLORED PRODUCT.
Volume
1 ML
Minimum Volume
0.5 ML
Additional Information
URIC ACID MEASUREMENTS ARE USED IN THE DIAGNOSIS AND TREATMENT OF NUMEROUS RENAL AND METABOLIC DISORDERS, INCLUDING RENAL FAILURE, GOUT, LEUKEMIA, PSORIASIS, STARVATION OR OTHER WASTING CONDITIONS, AND OF PATIENTS RECEIVING CYTOTOXIC DRUGS.
Stability
48 HOURS, 8 HOURS ROOM TEMP, OR FREEZE
Reference Range Information
VENIPUNCTURE IMMEDIATELY AFTER OR DURING THE ADMINISTRATION OF METAMIZOLE (DIPYRONE) MAY LEAD TO FALSELY LOW RESULTS FOR URIC. VENIPUNCTURE SHOULD BE PERFORMED PRIOR TO THE ADMINISTRATION OF METAMIZOLE. INERFERENCES SHOULD ALSO BE SUSPECTED FROM THE FOLLOWING SUBSTANCES: THEOPHYLLINE METABOLITES (1,3-DIMETHYLURIC ACID AND 1-METHYLURIC ACID), CATECHOLAMINES, METHYLENE BLUE, SULFASALAZINE, EDTA, SODIUM FLUORIDE, AND OTHER REDUCING AGENTS
Turn Around Time
NEXT DAY
Place of Service
GRITMAN MEDICAL CENTER
| Result Code | Result Name | Sex | Units of Measure |
|---|---|---|---|
| URIC | URIC ACID, SERUM | MALE | MG/DL |
| URIC | URIC ACID, SERUM | FEMALE | MG/DL |
| Reflex Order Code | Reflex Order Name | Reflex CPT4 |
|---|---|---|
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