Identifying, Monitoring, Providing Care, and Administering Medication to Treat Pulmonary Diseases
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CCRN › Identifying, Monitoring, Providing Care, and Administering Medication to Treat Pulmonary Diseases
The process of ventilation has four phases. Which of the following correctly describes the events of Phase III?
delivery of oxygen to the erythrocytes, and the removal of carbon dioxide from the erythrocytes and the bloodstream
movement of ambient air in and out of the respiratory tract
diffusion of oxygen and carbon dioxide in the alveoli
regulation of ventilation
Explanation
The four phases of ventilation are as follows: Phase I is the movement of ambient air in and out of the respiratory tract; Phase II is the diffusion of oxygen and carbon dioxide in the alveoli; Phase III entails the delivery of oxygen to erythrocytes, and the removal of carbon dioxide from the erythrocytes and the bloodstream; Phase IV is the regulation of ventilation.