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HelpTest ID KUR Potassium, 24 Hour, Urine
Useful For
Determining the cause for hyper- or hypokalemia
Performing Laboratory
Mayo Clinic Laboratories in Rochester
Specimen Type
UrineOrdering Guidance
Necessary Information
24-Hour volume (in milliliters) is required.
Specimen Required
Supplies: Sarstedt 5 mL Aliquot Tube (T914)
Collection Container/Tube: 24-Hour graduated urine container with no metal cap or glued insert
Submission Container/Tube: Plastic, 5 mL tube or a clean, plastic aliquot container with no metal cap or glued insert
Specimen Volume: 5 mL
Collection Instructions:
1. Collect urine for 24 hours.
2. Refrigerate specimen within 4 hours of completion of 24-Hour collection.
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 | 30 days | |
| Ambient | 7 days |
Reference Values
≥18 years: 16-105 mmol/24 hours
Reference values have not been established for patients who are younger than 18 years of age.
CPT Code Information
84133
Reject Due To
| All specimens will be evaluated at Mayo Clinic Laboratories for test suitability. |
Secondary ID
614060Day(s) Performed
Monday through Sunday