Sodium, Urine Timed

Message
Performed in the Chemistry Laboratory, x5820
08.2018


Test Code
UNAT


Alias/See Also
Sodium
Sodium, Urine Random


CPT Codes
84300

Preferred Specimen
Urine


Minimum Volume
4mL


Instructions
perform within 2 hours of collection


Transport Container
24 hr urine container


Transport Temperature
Room temperature


Specimen Stability
2 - 8 oC: 48 hours


Methodology
Ion selective electrode (indirect method)

Setup Schedule
This assay is performed 24 hours per day, 7 days per week


Reference Range
41 - 227 mEq/24 hours


Clinical Significance
This test is used in assessing acid-base balance, water balance, water intoxication, and dehydration




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.