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Potassium, 24-Hour Urine with Creatinine
Test Code734
CPT Codes
84133, 82570<br><strong>This test is not available for New York patient testing</strong>
Includes
CPT code 81050 may be added at an additional charge for volume measurement
Preferred Specimen
10 mL 24-hour urine collected in a no-preservative plastic urine container
Minimum Volume
2 mL
Other Acceptable Specimens
Urine preserved with boric acid • Urine preserved with acetic acid • Urine preserved with HCl • Urinalysis transport tube (yellow-top, blue fill line, preservative tube)
Instructions
Record total volume and collection time on specimen container and requisition
Transport Temperature
Room temperature
Specimen Stability
Room temperature: 7 days
Refrigerated: 7 days
Frozen: 28 days
Refrigerated: 7 days
Frozen: 28 days
Methodology
Ion Selective Electrode (ISE)
Setup Schedule
Set up: Daily; Reprot Available: 2 days
Clinical Significance
Assessment of hydration status and overall electrolyte balance.
