Sulfate, Quantitative, 24-Hour Urine

CPT: 84392
Updated on 5/28/2019
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Special Instructions

Record total 24-hour urine volume on the request form.


Expected Turnaround Time

3 - 5 days

3 - 5 days


Related Documents


Specimen Requirements


Specimen

Urine (24-hour)


Volume

10 mL aliquot


Minimum Volume

0.5 mL aliquot


Container

Plastic urine container, no preservative


Collection

Measure total volume and record. Mix well.


Storage Instructions

Refrigerate


Stability Requirements

Temperature

Period

Room temperature

14 days

Refrigerated

14 days

Frozen

14 days

Freeze/thaw cycles

Stable x3


Test Details


Use

The determination of sulfate in urine is of interest in sulfur metabolism studies. The urinary sulfate is mainly derived from sulfur-containing amino acids and is therefore determined by protein intake. This assay is also useful as part of a kidney stone risk profile.


Limitations

This test was developed, and its performance characteristics determined, by LabCorp. It has not been cleared or approved by the Food and Drug Administration.


Methodology

Spectrophotometry


Reference Interval

0−30 mEq/24 hours


LOINC® Map

Order Code Order Code Name Order Loinc Result Code Result Code Name UofM Result LOINC
123307 Sulfate, Quant, 24-Hour Urine 121303 Sulfate,Ur,mEq/24hr mEq/24 hr 26889-6
123307 Sulfate, Quant, 24-Hour Urine 121304 Sulfate, Ur, mEq/L mEq/L 26888-8

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The LOINC® codes are copyright © 1994-2018, Regenstrief Institute, Inc. and the Logical Observation Identifiers Names and Codes (LOINC) Committee. Permission is granted in perpetuity, without payment of license fees or royalties, to use, copy, or distribute the LOINC® codes for any commercial or non-commercial purpose, subject to the terms under the license agreement found at https://loinc.org/license/. Additional information regarding LOINC® codes can be found at LOINC.org, including the LOINC Manual, which can be downloaded at LOINC.org/downloads/files/LOINCManual.pdf