Ordering Recommendation
Mnemonic
CITRIC U
Methodology

Quantitative Enzymatic

Performed

Sun-Sat

Reported

Within 24 hours

New York DOH Approval Status
This test is New York DOH approved.
Specimen Required
Patient Preparation
Collect

24-hour urine. Refrigerate during collection. Also acceptable: Random urine.

Specimen Preparation

Adjust pH to less than or equal to 2 by adding 6M HCl. Transfer a 4 mL aliquot of urine to an ARUP Standard Transport Tube. (Min: 0.5 mL) Record total volume, collection time interval, and pH on transport tube and test request form. Also acceptable: Specimens previously preserved with boric acid.

Storage/Transport Temperature

Refrigerated.

Unacceptable Conditions
Remarks
Stability

Ambient: 8 hours; Refrigerated: 1 week; Frozen: Indefinitely

Reference Interval
Test Number
Components
Reference Interval
  Citric Acid, Urine - per 24h 18 years and older: 320-1240 mg/d
  Citric Acid/Creatinine Ratio, Urine 1 year and older: greater than or equal to 150 mg/g.

Interpretive Data



Compliance Statement B: For laboratory developed tests not using a RUO kit, and for FDA approved, cleared or 510(k) exempt assays with alterations. This test was developed and its performance characteristics determined by ARUP Laboratories. The U. S. Food and Drug Administration has not approved or cleared this test; however, FDA clearance or approval is not currently required for clinical use. The results are not intended to be used as the sole means for clinical diagnosis or patient management decisions.

Note
Hotline History
N/A
CPT Codes

82507

Components
Component Test Code* Component Chart Name LOINC
0020207 Creatinine, Urine - per volume 2161-8
0020208 Creatinine, Urine - per 24h 2162-6
0020242 Citric Acid, Urine - per 24h 6687-8
0020243 Citric Acid, Urine - per volume 2128-7
0020744 Citric Acid/Creatinine Ratio, Urine 13722-4
0097110 Total Volume 19153-6
0097111 Hours Collected 30211-7
* Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds; for a complete test mix, please click the sidebar link to access the Interface Map.
Aliases
  • Citrate
  • Citric Acid, Random Urine
  • Citric Acid, Urine
  • Citric Acid/Creatinine Ratio, Random Urine
  • Urinary Citrate Excretion
Citric Acid, Urine