![]() This allows convenient and safe continuous monitoring of oxygen saturation in peripheral (capillary) blood (SpO 2), but it has limitations.Īrterial blood gas analysis, the focus of this article, provides a fuller and more accurate ”gold standard” assessment of blood oxygenation status. Blood oxygenation is most commonly assessed non-invasively by pulse oximetry. There is no routinely available method for directly monitoring tissue oxygenation instead clinicians must depend on available indirect measures.Īlthough not the only factor to be considered, measurement of the amount of oxygen (O 2) in blood is vital for the prediction of a patient’s tissue oxygen status. Ensuring adequate oxygen delivery to tissues is a prime objective of acute/critical medical care. ![]()
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