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HelpOrder Code LAB78 Potassium, 24 Hour Urine
Useful For
Determining the cause for hyper or hypokalemia.
Specimen Requirements
Special Note: 24 hour collection container must be refrigerated during entire duration of collection. Send 5-10 mL aliquot from a 24-hour urine collection. Mix well before taking aliquot.
- 24-Hour urine total volume is required on request form and urine container for processing.
- Follow instructions in Special Instructions.
Specimen Stability
| Specimen Type | Temperature | Stability |
| Urine | Ambient | 4 days |
| Refrigerated (preferred) | 7 days | |
| Frozen | 6 months |
Reference Values
42 - 225 mg/day
Special Instructions
Day(s) Test Set Up
Monday through Sunday
Performing Laboratory
Ridgeview Medical Center Laboratory
Methodology
Potentiometric
Test Classification and CPT Coding
84133