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HelpTest ID URCU Uric Acid, 24 Hour, Urine
Useful For
Assessment and management of patients with kidney stones, particularly uric acid stones
Special Instructions
Method Name
Uricase
Reporting Name
Uric Acid, USpecimen Type
UrineSpecimen Required
Container/Tube: Plastic, 5-mL tube (T465)
Specimen Volume: 5 mL
Collection Instructions:
1. Add 10 g of boric acid as preservative at start of collection.
2. Collect urine for 24 hours.
3. Mix well before taking 5-mL aliquot.
Additional Information:
1. 24-Hour volume is required.
2.
See Urine Preservatives-Collection and Transportation for
24-Hour Urine Specimens in Special Instructions for multiple
collections.
Specimen Minimum Volume
1 mL
Specimen Stability Information
| Specimen Type | Temperature | Time |
|---|---|---|
| Urine | Refrigerated (preferred) | 14 days |
| Frozen | 14 days |
Reference Values
> or = 16 years: Diet-dependent: <750 mg/24 hours
Reference values have not been established for patients who are less than 16 years of age.
The reference value is for a 24-hour collection. Specimens collected for other than a 24-hour time period are reported in unit of mg/dL for which reference values are not established.
Day(s) and Time(s) Performed
Monday through Sunday; Continuously
Performing Laboratory
Mayo Clinic Laboratories in Rochester
CPT Code Information
84560
LOINC Code Information
| Test ID | Test Order Name | Order LOINC Value |
|---|---|---|
| URCU | Uric Acid, U | 3087-4 |
| Result ID | Test Result Name | Result LOINC Value |
|---|---|---|
| UACID | Uric Acid, U | 3087-4 |
| TM29 | Collection Duration | 13362-9 |
| VL27 | Urine Volume | 3167-4 |
| UACN1 | Uric Acid Concentration | 21587-1 |