ATI RN
Questions on Respiratory System Questions
Question 1 of 5
Which step of respiration involves the diffusion of gases across the alveolar membrane?
Correct Answer: B
Rationale: Failed to generate a rationale of 500+ characters after 5 retries.
Question 2 of 5
What is the volume of air that will remain in the lungs after a normal expiration called?
Correct Answer: C
Rationale: Failed to generate a rationale of 500+ characters after 5 retries.
Question 3 of 5
What is the primary factor that affects the binding of oxygen (O₂) to hemoglobin?
Correct Answer: A
Rationale: The binding of oxygen (O₂) to hemoglobin is primarily influenced by the partial pressure of oxygen (pO₂). When the pO₂ is high, such as in the alveoli of the lungs, the affinity of hemoglobin for oxygen increases, promoting the formation of oxyhemoglobin. In contrast, at low pO₂ levels in the tissues, oxyhemoglobin dissociates, releasing oxygen for cellular respiration.
Question 4 of 5
Where does the formation of bicarbonate (HCO₃⁻) from CO₂ primarily occur in the body?
Correct Answer: A
Rationale: The formation of bicarbonate ions (HCO₃⁻) from carbon dioxide (CO₂) primarily occurs in the tissues. In the tissues, where the partial pressure of CO₂ is high due to catabolism, CO₂ diffuses into the blood (RBCs and plasma) and undergoes the reaction facilitated by carbonic anhydrase to form bicarbonate ions and hydrogen ions.
Question 5 of 5
What protective measure should workers in industries with high dust production consider?
Correct Answer: A
Rationale: Workers in industries with high dust production, where the defense mechanism of the body may be overwhelmed, should wear protective masks or respirators. These masks can help filter out dust particles and prevent inhalation, reducing the risk of inflammation and damage to the lungs. Using appropriate personal protective equipment is crucial in minimizing the exposure and potential health hazards associated with occupational respiratory disorders.