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HelpTest Code LAB10181 Uric Acid - 24 Hour Urine
Department
CHEMISTRY
Collection Requirements
24 hour urine.
Do not add preservatives to the collection container.
Keep the container on ice or refrigerated during collection.
Note total urine volume and PH on the label.
Primary Collection Container
24 HR Urine container
Transport
Refrigerated
Preferred Transport Temperature
Refrigerated
Processing
Keep specimen refrigerated until processing. Check pH. If pH is <8 treat entire 24 hr urine with 5% NaOH and allow to sit for 15 min. Re-check the pH and continue to add NaOH until the pH is >8. Centrifuge, aliquot and refrigerate. Note total urine volume and PH on the label.Stability
Ambient: 4 days
Refrigerated: 4 days
Frozen: 6 months
Minimum Testing Volume
0.5 mL
Reference Range
0.5 – 1.1 gm/24hr
Methodology
Roche c503 Enzymatic colorimetric Assay.
Performed
Sunday – Saturday
7:00 am – 3:00 pm
Reported
As completed
CPT Codes
84560