The breathing pattern that reflects respirations based primarily on carbon dioxide (CO₂) levels in the blood is: A) Cheyne-Stokes. B) ataxic. C) central neurogenic. D) normal.

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Cheyne-Stokes breathing is a type of periodic breathing that is characterized by alternating periods of hyperventilation and apnea. It is caused by an imbalance between the respiratory center in the brain and the chemoreceptors in the carotid bodies and aortic arch. The chemoreceptors are responsible for detecting changes in blood CO2 levels, and they send signals to the respiratory center to adjust the rate and depth of breathing. In Cheyne-Stokes breathing, the chemoreceptors become less sensitive to CO2, and the respiratory center responds by decreasing the rate and depth of breathing. This leads to a buildup of CO2 in the blood, which eventually stimulates the chemoreceptors to send a signal to the respiratory center to increase the rate and depth of breathing. This cycle then repeats itself.

The Breathing Pattern That Reflects Respirations Based Primarily on Carbon