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Sodium, Body Fluid
(Not a routinely available test. See 'Additional information')

Item Value
Approval req'd? No
Available Stat? No
Test code NABF
Test group Sodium
Performed by Parnassus & Mission Bay Chemistry
In House Availability Test available 24 hours per day 7 days per week
Method Ion selective electrode (ISE)
Collection Instructions Specimen label must contain the date the sample was collected and the legible name of the person who collected the sample.
Container type Red top or clean container
Amount to Collect 5 mL fluid
Sample type Body Fluid
Preferred volume 1 mL fluid
Min. Volume 0.2 mL fluid
Units mmol/L
Normal range
Synonyms Na; Body fluid electrolytes
Stability Room temperature 8 hours, refrigerated 2 days, frozen at -20C 1 week
Turn around times 4 hours
Additional information As normal samples are not available for validating the performance of this assay, the UCSF Clinical laboratory makes no claims with regard to the accuracy of the result.

All results will be appended with a disclaimer: "The reference range and other method performance specifications have not been established by the UCSF Clinical Laboratory for this body fluid. The test result must be integrated into the clinical context for interpretation."

Turbid samples, including watery stools, will be centrifuged and the test run on the supernatant.
LOINC code 2950-4
Last Updated 8/6/2015 7:36:30 AM
Entry Number 859
Lab Procedure Link Click here for Procedure
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