Laboratory Test Reference Guide

Laboratory Information

Test Name

Sodium urine

Synonyms

Na

External Price (excl. GST)

2.63

Specimen Collection

Adult Specimen

Random or 24 hr urine collection. No preservative.

Test Information

Department

Biochemistry

Test Availability

Mon - Sun, 24hrs

Laboratory Turnaround Time

3 hrs

Method

Cobas 6000 indirect ion selective electrode "T"-Labs: Vitros 350 Direct ion selective electrode

Unit of measurement

mmol/L

Reference interval

Unlike 24hr urine, spot urine testing for electrolytes traditionally has not been assigned any reference limits as it fluctuates significantly with the variable amount of dietary intake, degree of urine concentration/dilution, corresponding plasma concentrations and related endocrine and kidney functions. The implication of electrolyte concentrations and use of appropriate cut points very much depends on the specific pre-test clinical questions and context.

Uncertainty of measurement

5%

Additional Information

Please note this is the price is for a 24 Hr collection.

Minimum Volume

0.1 mL

Electronic Information

Registration Code

SODU

HL7 mapping code

$SODU

LOINC Code

2955-3