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Sodium, 24-hour Urine

Test Code
24NA


CPT Codes
81050, 84300

Preferred Specimen
24-hour urine


Instructions
Submit an entire 24-hour urine collection in a urine container supplied. No preservative. Note: 1. Starting and ending times of collection and total volume are required on request form for processing. 2. See "Urine Collection" in "Special Instructions".


Transport Container
24 hour urine container


Transport Temperature
Refrigerate.


Methodology
Ion-Selective Electrode (ISE) Potentiometric

Reference Range
43-260 mmol/24 hours


Clinical Significance
Used to quantify the amount of sodium in urine.




The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.