The most important factor determining the percentage of hemoglobin saturation is the:
A)systemic blood pressure
B)diastolic blood pressure
C)pH of the blood
D)PCO₂ of the blood
E)PO₂ of the blood

Question

The most important factor determining the percentage of hemoglobin saturation is the:​
A)​systemic blood pressure
B)diastolic blood pressure
C)pH of the blood
D)PCO₂ of the blood
E)​PO₂ of the blood

Quizplus · Accepted Answer

The percentage of hemoglobin saturation is primarily determined by the partial pressure of oxygen (PO₂) in the blood. As PO₂ increases, the hemoglobin molecule becomes more saturated with oxygen, and as PO₂ decreases, the hemoglobin molecule releases oxygen. Other factors such as pH, PCO₂, and systemic blood pressure can also affect hemoglobin saturation to a lesser extent.

The Most Important Factor Determining the Percentage of Hemoglobin Saturation