Registered Nurse (RN) Respiratory Practice Exam

The statement is false because carbon dioxide is not inhaled into the lungs to attach to red blood cells. Inhalation primarily involves the intake of oxygen, which is crucial for cellular respiration. Once in the lungs, oxygen diffuses into the bloodstream and binds to hemoglobin in red blood cells for transport to tissues throughout the body.

On the other hand, carbon dioxide is a waste product of metabolism that is produced by the cells and transported back to the lungs via the bloodstream. In the lungs, carbon dioxide is expelled from the body when exhaling. The process involves carbon dioxide binding to hemoglobin, but it is not inhaled; rather, it is released from the blood into the lungs to be exhaled.