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Laboratory Test Reference Guide

Laboratory Information

Test Name

O2 saturation (blood gas)

Specimen Collection

Specimen Collection and Transport Protocols

Remove at least 3 ml of blood to waste prior to collecting the blood sample from a line.  Must be analysed within 30 minutes of collection.

Adult Specimen

1.0 ml blood in an adult blood gas syringe or 0.5 ml in a paediatric blood gas syringe

Paediatric Specimen

0.5 ml blood in a paediatric blood gas syringe

Sample Delivery to Lab


Test Information



Test Availability

Mon - Sun, 24hrs

Laboratory Turnaround Time

30 minutes


Blood gas analyser

Unit of measurement


Reference interval


Minimum Volume

0.3 ml collected into a paediatric blood gas syringe

Electronic Information

Registration Code


HL7 mapping code