Health Lab

Test Name:

URIC ACID, 24-HOUR URINE

Test Code:

2120193

Alias:

LAB841

CPT Code(s):

84560

Preferred Specimen:

10 mL urine of a well-mixed, 24-hour collection (with preservative)

Container:

Amber 24-hour urine plastic container

Preservative: 10 mL of 5% NaOH or 6 NaOH pellets

Minimum Volume:

5 mL urine of a well-mixed, 24-hour collection (with preservative)
This volume does not allow for repeat testing.

Collection Instructions:

The collection container should be kept at room temperature during collection. Either 10 ml of 5% NaOH or 6 NaOH pellets should be added to the container to keep the urine alkaline. Instruct patient to void at 8 AM (or 8 PM) and discard the specimen. Then collect all the urine including the final specimen voided at the end of the 24-hour collection period (ie, 8 AM or 8 PM the following day).

Refer to separate patient instructions for detailed 24-hour urine collection. Record the collection date/time and total volume on the specimen container and test requisition.

For patient safety, dropping off specimens requires a full registration process and verification of proper specimen collection.

Transport Temperature:

Room temperature

Stability:

Room temperature: 4 days

Limitations:

Errors in recording timing of collection period
Loss of a portion of the urine during collection
Including the first void in the timed collection
Urinary retention

Schedule:

Set up Daily; Results in 24-48 hours

Method:

Enzymatic

Clinical Significance:

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.

Reference Ranges:

Updated 02/16/22

Reference Range Table

Result	Units	Gender	Age	Range
Uric Acid, 24hr urine	mg/24hrs	Both	0 Year - 999 Year	250-800

The CPT codes included in this publication are in accordance with Current Procedural Terminology, a publication of the American Medical Association. CPT codes are provided here for the convenience of our clients; however, correct coding often varies from one carrier to another, and HealthLab may bill specific carriers using codes other than those shown. Clients who bill for services should verify the code(s) with the applicable payor to confirm that their use is appropriate in each case.