Laboratory Test Reference Guide

Test Name

Osmolality

External Price (excl. GST)

8.17

Adult Specimen

Heparin (light green), SST (gold)

Paediatric Specimen

0.3 ml Heparin (light green) or Plain(red or Gold SST).

Department

Biochemistry

Test Availability

Mon - Sun, 24hrs

Laboratory Turnaround Time

1 day, or 90 minutes for a Water Deprivation test.

Method

Freezing point depression

Unit of measurement

mmol/kg

Reference interval

Uncertainty of measurement

+/- 4 mmol/kg

Minimum Volume

Registration Code

OS

HL7 mapping code

$OS