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

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Showing all 5 practice questions with expert explanatory rationales.

Question 1 of 5

Foetal hemoglobin has great affinity than adult hemoglobin because

A. It binds 2,3 DPG less avidity by Gamma polypeptide chain than HbA

B. Its concentration is very high

C. Foetal blood gets oxygen from the mother

D. Its polypetide chains bind very fast with Oxygen

Expert Explanatory Rationale

Correct Answer: It binds 2,3 DPG less avidity by Gamma polypeptide chain than HbA

Question 2 of 5

The amount of air that moves in and out of the lungs, with each normal inspiration and expiration is called

A. Residual volume

B. Vital capacity

C. Tidal volume

D. Tidal capacity

Expert Explanatory Rationale

Correct Answer: Tidal volume

Question 3 of 5

A client has been taking isoniazid for tuberculosis for 3 weeks. What laboratory results need to be reported to the primary health care provider immediately?

A. Albumin: 5.1 g/dL (7.4 mcmol/L)

B. Alanine aminotransferase (ALT): 180 U/L

C. Red blood cell (RBC) count: 5.2/million/Ãƒâ€šÃ‚ÂµL (5.2 ÃƒÂ¯Ã¢â‚¬Å¡Ã‚Â´ 1012/L)

D. White blood cell (WBC) count: 12,500/mm3 (12.5 ÃƒÂ¯Ã¢â‚¬Å¡Ã‚Â´ 109/L)

Expert Explanatory Rationale

Correct Answer: Alanine aminotransferase (ALT): 180 U/L

Question 4 of 5

which actions occur in inhalation

A. rib muscle and diaphragm contract

B. volume in chest cavity increase

C. air pressure decreases

D. all of the above

Expert Explanatory Rationale

Correct Answer: all of the above

Question 5 of 5

Most of the oxygen transported by the blood is

A. dissolved in plasma

B. bound to hemoglobin

C. in ionic form as solute in the plasma

D. bound to the same protein as carbon dioxide

Expert Explanatory Rationale

Correct Answer: bound to hemoglobin

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