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Potassium, 24-Hour Urine without Creatinine
Test Code11316
CPT Codes
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 aliquot of a 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 duration on specimen container and test requisition
Transport Container
Plastic urine container
Transport Temperature
Room temperature
Specimen Stability
Room temperature: 14 days
Refrigerated: 14 days
Frozen: 60 days
Refrigerated: 14 days
Frozen: 60 days
Methodology
Ion Selective Electrode (ISE)
Setup Schedule
Set up: Daily; Report available: 2 days
Reference Range
22-160 mmol/24 h
Clinical Significance
Urinary excretion of potassium is increased in primary aldosteronism. It is often increased in dehydration and in salicylate toxicity. Decreased levels are seen in malabsorption.
Performing Laboratory
MED FUSION |
2501 South State Hwy 121, Suite 1100 |
Lewisville, TX 75067-8188 |