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HelpTest Code KU (random) or URK (24 hr urine) Potassium, Urine
Additional Codes
24h: LAB436
Random: LAB434
Methodology
Used to monitor electrolyte balance.
Performing Laboratory
St. Mary's Regional Medical Center-Chemistry
CPT: 84133 (random or 24 hour)
Specimen Requirements
Submit only 1 of the following specimens:
Urine, 24-Hour Collection
Submit an entire 24-hour urine collection in a plastic urine container. No preservative.
Note: 1. Starting and ending times of collection are required.
2. Follow instructions in Urine Collection in Special Instructions.
Urine, Random Collection
1 mL from a random urine collection. No preservative.
Reference Values
25-125 mEq/24 hours (varies with diet)
No established reference ranges for random collections.
Day(s) Test Set Up
Monday through Sunday