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HelpTest ID SULFU Sulfate, 24 Hour, Urine
Useful For
Assessing the nutrition intake of animal protein
The calculation of urinary supersaturation of various crystals or stones
Performing Laboratory
Mayo Clinic Laboratories in Rochester
Specimen Type
UrineNecessary Information
24-Hour volume (in milliliters) is required.
Specimen Required
Supplies: Sarstedt 5 mL Aliquot Tube (T914)
Container/Tube: Plastic, 5-mL urine tube
Specimen Volume: 4 mL
Collection Instructions:
1. Collect urine for 24 hours.
2. Collection instructions with no preservative:
-Specimen must be kept refrigerated during and after collection.
3. Collection instructions with preservative:
a. If preservative is not added before collection, the specimen must be kept refrigerated until preservative is added.
b. Preservative must be added within 4 hours of the end of collection.
4. Specimen pH should be between 4.5 and 8 and will stay in this range if kept refrigerated. Specimens with pH >8 indicate bacterial contamination, and testing will be cancelled. Do not attempt to adjust pH as it will adversely affect results.
Additional Information: See Urine Preservatives-Collection and Transportation for 24-Hour Urine Specimens for multiple collections.
Specimen Stability Information
| Specimen Type | Temperature | Time |
|---|---|---|
| Urine | Refrigerated (preferred) | 14 days |
| Frozen | 14 days |
Special Instructions
Reference Values
7-47 mmol/24 hours
Day(s) Performed
Monday through Friday
CPT Code Information
84392
Report Available
1 to 3 daysReject Due To
All specimens will be evaluated at Mayo Clinic Laboratories for test suitability.Secondary ID
606479Forms
If not ordering electronically, complete, print, and send a Renal Diagnostics Test Request (T830) with the specimen.