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Potassium, 24-Hour Urine with Creatinine
Test Code734
CPT Codes
82570, 84133<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 urine aliquot from a 24-hour collection - no preservative
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 duration on transport container and test requisition
Transport Container
Plastic urine container
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; Report available: 2 days
Reference Range
See Laboratory Report
Clinical Significance
Assessment of hydration status and overall electrolyte balance.
Performing Laboratory
MED FUSION |
2501 South State Hwy 121, Suite 1100 |
Lewisville, TX 75067-8188 |