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24-hour Urine Sodium

Message
Day(s) Test Set Up: Monday through Sunday


Test Code
UNA24


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
Refrigerated


Methodology
Ion-Selective Electrode (ISE) Potentiometric

Reference Range
40-220 mmol/24 hours


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



Last Updated: January 29, 2020


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.