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Uric Acid CPT: 84550

Synonyms

UA

Urate

Expected Turnaround Time

Within 1 day

Specimen Requirements

Specimen

Serum (preferred) or plasma

Volume

1 mL

Minimum Volume

0.5 mL

Container

Red-top tube, gel-barrier tube, green-top (heparin) tube, or lavender-top (EDTA) tube.

Collection

Separate serum or plasma from cells within 45 minutes of collection.

Storage Instructions

Maintain specimen at room temperature.

Stability Requirements

Temperature Period
Room Temperature 14 days
Refrigerated 14 days
Frozen 14 days
Freeze/thaw/ cycles Stable x 3

Patient Information

To detect high levels of uric acid in the blood, which could be a sign of the condition gout, or to monitor uric acid levels when undergoing chemotherapy or radiation treatment; to detect high levels of uric acid in the urine in order to diagnose the cause of kidney stones and to monitor those with gout who are at risk of developing such stones

When you have joint pain or other symptoms that your healthcare practitioner suspects may be due to gout; when you have had or are going to have certain chemotherapy or radiation therapies for cancer; when you have recurrent kidney stones; when you have gout or are otherwise at risk for kidney stone formation.

A blood sample drawn from a vein in the arm or a 24-hour urine sample.

None may be needed; however, some institutions recommend fasting. Follow any instructions you are given.