A nurse is calculating the correlation of Pao₂ with Sao₂ according to the oxyhemoglobin dissociation curve.What parameter should indicate that the Pao₂ is less than 50 to 60 mm Hg? A) Coarse lung sounds B) Temperature of 100° F C) Respiratory rate of 58 D) Pulse oximetry reading of 90% or less

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The Pao₂ can be correlated with the Sao₂ by means of the oxyhemoglobin dissociation curve,although changes in Pao₂ do not cause identical (linear)changes in Sao_2.The curve represents the relationship between Pao₂(measured in the blood)and Sao₂ (measured by the pulse oximeter).When the Pao₂ is 60 9mm9 Hg,the Sao₂ is 90%.The oxyhemoglobin dissociation curve does not correlate with lung sounds,temperature,or respiratory rate.

A Nurse Is Calculating the Correlation of Pao2 with Sao2

A Nurse Is Calculating the Correlation of Pao₂ with Sao₂