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HESI LPN · HESI LPN Medical Surgical Nursing · HESI Questions and Answers on Respiratory System

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Showing all 5 practice questions with expert explanatory rationales.

Question 1 of 5

Partial pressure of Oxygen in the inspired and expired air is respectively

A. 158 and 116 mm Hg

B. 158 and 40 mm Hg

C. 100 and 95 nn Hg

D. 40 and 95 mm Hg

Expert Explanatory Rationale

Correct Answer: 158 and 40 mm Hg

Question 2 of 5

Which of the body systems listed below cooperate to supply O2 to cells and eliminate CO2? 1) digestive system 2) cardiovascular system 3) urinary system 4) respiratory system 5) endocrine system

A. 3, 5

B. 2, 4

C. 1, 2

D. 1, 2, 2004

Expert Explanatory Rationale

Correct Answer: 2, 4

Question 3 of 5

A nurse caring for a client removes the client's oxygen as prescribed. The client is now breathing what percentage of oxygen in the room air?

A. 14%

B. 21%

C. 28%

D. 31%

Expert Explanatory Rationale

Correct Answer: 21%

Question 4 of 5

The organ of the respiratory system that closes when food is being swallowed is the:

A. nose

B. pharynx

C. larynx

D. trachea

Expert Explanatory Rationale

Correct Answer: larynx

Question 5 of 5

A black client with asthma seeks emergency care for acute respiratory distress. Because of this client's dark skin, the nurse should assess for cyanosis by inspecting the:

A. Lips

B. Mucous membranes

C. Nail beds

D. Earlobes

Expert Explanatory Rationale

Correct Answer: Mucous membranes

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