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 Category

Laboratory Developed Test (LDT)

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