What changes in the blood levels of respiratory gases result from hyperventilation?
A) Oxygen and carbon dioxide levels rise.
B) Oxygen and carbon dioxide levels fall.
C) Oxygen levels rise and carbon dioxide levels fall.
D) Oxygen levels do not change but carbon dioxide levels fall.

Question

Quizplus · Accepted Answer

Hyperventilation increases the rate and depth of breathing, which leads to a decrease in the partial pressure of carbon dioxide (PCO2) in the blood. This decrease in PCO2 causes a decrease in the blood levels of carbon dioxide. The increased rate and depth of breathing also leads to an increase in the partial pressure of oxygen (PO2) in the blood, which causes an increase in the blood levels of oxygen.

What Changes in the Blood Levels of Respiratory Gases Result