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K24
POTASSIUM, 24-HOUR URINE

Test Code K24 
Test POTASSIUM, 24-HOUR URINE 
Methodology Ion-Selective Electrode (ISE) 
Description Useful for evaluation of electrolyte balance and acid-base balance. 
Specimen 10 mL (minimum volume: 1.0 mL) aliquot from a 24-hour urine collection in a clean, non-sterile, plastic urine container. No preservative. Refrigerate specimen during collection. Send specimen refrigerated.

NOTE:
1. 24-HOUR VOLUME IS REQUIRED ON REQUEST FORM FOR PROCESSING.
2. Prior to aliquoting specimen, mix specimen well, measure and record volume.
3. Follow "Urine Collection" instructions. 

Reference Values 30 - 90 mEq/24 hours 
Analytic Time 1 Day 
Day(s) Test Set Up Monday through Sunday 
CPT Code(s) 84133  

Special Instructions