Question

If a patient with a normal pH and temperature has a PaO₂ of 60 mm Hg, his arterial oxygen saturation (SaO₂) is closest to which of the following values?

1) 75
2) 90
3) 95
4) 99

Answer 1

The arterial oxygen saturation (SaO₂) can be estimated based on the partial pressure of oxygen (PaO₂). With a PaO₂ of 60 mm Hg, the SaO₂ would be approximately 90 percent.

Step-by-step explanation:

The arterial oxygen saturation (SaO₂) can be estimated based on the partial pressure of oxygen (PaO₂). A normal PaO₂ is considered to be about 60-100 mm Hg. However, to determine the exact SaO₂ value, we need to refer to the oxygen-hemoglobin dissociation curve. According to the curve, with a PaO₂ of 60 mm Hg, the SaO₂ would be approximately 90 percent.