0020852
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Citric Acid, Urine

CITRIC U
Example Reports
Abnormal
Normal

Ordering Recommendation

New York DOH Approval Status

This test is New York state 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: 24 hours; Refrigerated: 2 weeks; Frozen: 1 month

Methodology

Quantitative Enzymatic Assay

Performed

Sun-Sat

Reported

Within 24 hours

Reference Interval

Test Number
 Components
 Reference Interval
  Creatinine, Urine - per 24h
Age
 Male (mg/d)
 Female (mg/d)
3-8 years 140-700 140-700
9-12 years 300-1300 300-1300
13-17 years 500-2300 400-1600
18-50 years 1000-2500 700-1600
51-80 years 800-2100 500-1400
81 years and older 600-2000 400-1300

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

Interpretive Data

Per 24h calculations are provided to aid interpretation for collections with a duration of 24 hours and an average daily urine volume.  For specimens with notable deviations in collection time or volume, ratios of analytes to a corresponding urine creatinine concentration may assist in result interpretation.

Compliance Category

Laboratory Developed Test (LDT)

Note

Hotline History

N/A

CPT Codes

82507

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Components

Component Test Code* Component Chart Name LOINC
0020207 Creatinine, Urine - per volume 35674-1
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 51792-0
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

  • Urinary Citrate Excretion
  • Citric Acid/Creatinine Ratio, Random Urine
  • Citric Acid, Random Urine
  • Citrate
  • Citric Acid, Urine
Citric Acid, Urine