Pathology Handbook

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Laboratory:

Clinical Biochemistry

Test Code:

OSM

Specimen Types:

Blood

Container Types:

Lithium Heparin (with Gel)
SST

Adults Volume or Mass:

1 mL

Minimum/Paediatric Volume or Mass:

1 mL

Transport Instructions between Sites and/or Laboratories:

Room Temperature

Assay Frequency:

24/7

MBS Rebatable:

Yes

MBS Item No.:

66563

Additional Notes:

Reference Interval: 275—300 mmol/kg

Normally little or no change after water deprivation.

R.I. source: Penney MD & Walters G. Ann Clin Biochem 1987; 24:566-571, Bhagat Cl et al. Clin Chem 1984; 30:01703-1705