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ATI RN · ATI Medical Surgical · Respiratory System NCLEX Questions

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Showing all 5 practice questions with expert explanatory rationales.

Question 1 of 5

A gerontologic nurse is analyzing the data from a patient's focused respiratory assessment. The nurse is aware that the amount of respiratory dead space increases with age. What is the effect of this physiological change?

A. Increased diffusion of gases

B. Decreased diffusion capacity for oxygen

C. Decreased shunting of blood

D. Increased ventilation

Expert Explanatory Rationale

Correct Answer: Decreased diffusion capacity for oxygen

Question 2 of 5

Which lifestyle modification is recommended for individuals with heart failure?

A. Sedentary lifestyle

B. Smoking

C. Regular physical activity

D. Excessive alcohol consumption

Expert Explanatory Rationale

Correct Answer: Regular physical activity

Question 3 of 5

Which of the following is not a property of the mucous lining of the respiratory tract?

A. warms incoming air

B. contains microvilli

C. contains cilia

D. cleanses particles

Expert Explanatory Rationale

Correct Answer: contains microvilli

Question 4 of 5

Dead space air in man is __________

A. 500ml

B. 150ml

C. 250ml

D. 1.5l

Expert Explanatory Rationale

Correct Answer: 150ml

Question 5 of 5

Mammalian lungs have numerous alveoli for

A. Increasing the volume of inspired air

B. Keeping the lungs in proper shape

C. Higher number of muscles to provide greater elasticity

D. Increasing surface area for gaseous diffusion

Expert Explanatory Rationale

Correct Answer: Increasing surface area for gaseous diffusion

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