Ordering Recommendation

Measurement of urinary sulfate excretion is used in calculi risk assessment.




Quantitative Spectrophotometry


Sun, Wed, Fri


1-6 days

New York DOH Approval Status

This test is New York DOH approved.

Specimen Required

Patient Preparation

24-hour urine. Refrigerate during collection.

Specimen Preparation

Transfer 4 mL urine to an ARUP Standard Transport Tube. (Min: 2 mL)
Additional Information: Record total volume and collection time on tube and test request form.

Storage/Transport Temperature

CRITICAL FROZEN. Separate specimens must be submitted when multiple tests are ordered.

Unacceptable Conditions

Room temperature specimens. Any sample except urine.


Ambient: Unacceptable; Refrigerated: Unacceptable; Frozen: 1 month

Reference Interval

6-30 mmol/d

Interpretive Data

Reference intervals have been established for 24 hour collections only.

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.

This test was developed and its performance characteristics determined by ARUP Laboratories. It has not been cleared or approved by the US Food and Drug Administration. This test was performed in a CLIA certified laboratory and is intended for clinical purposes.

Compliance Category

Laboratory Developed Test (LDT)


Hotline History


CPT Codes



Component Test Code* Component Chart Name LOINC
0020207 Creatinine, Urine - per volume 2161-8
0020208 Creatinine, Urine - per 24h 2162-6
0081103 Sulfate, Urine - per volume 47780-2
0081104 Sulfate, Urine - per 24h 26889-6
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.


  • Inorganic sulfate
Sulfate, Urine