Question of the Week

Question :

Posted On : 05 Aug 2006

How to differentiate ABG whether it is venous sample and arterial sample.

Expert Answer :

No expert answer available.

Answer Discussion :

saeedelsadek

color is different

18 years ago

pediatriconcall

One would have to look at the PO2 and PCO2 along with clinical symptoms. IF required one can correlate the saturation with pulse oximeter or else repeat the ABG again.

18 years ago

vss

by correlating po2, pco2 and the clinical condition

18 years ago

Chew So-phia

venous sample has lower level of paO2 and higher level of paCO2

18 years ago

Dr Mahmood alam

pO2 in arterial blood gas will be significantlyhigher in arteial blood gas as compared to venous. If patient SaO2 is more than 95 Percent PaO2 in arterial blood gas should be more than 90 mmHg but will be around 60-70 mmHg in venous blood gas. further pH in arterial bllod gas is roughly .05 higher and pCO2 5 mmHg lower than venous blood sample.

18 years ago

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