Which of the following is TRUE about Expiration?

Question 1 of 5

A. A passive process B. The length of which is half of the length of Inspiration C. Stridor is commonly heard during expiration D. Requires energy to be carried out

Correct Answer: A

Rationale: Expiration is typically a passive process at rest, relying on the elastic recoil of the lungs and chest wall rather than active muscle effort.

Question 2 of 5

A client taking Coumadin is to be educated on his diet. As a nurse, which of the following food should you instruct the client to avoid?

A. Spinach, Green leafy vegetables, Cabbage, Liver B. Salmon, Sardines, Tuna C. Butter, Egg yolk, breakfast cereals D. Banana, Yeast, Wheat germ, Chicken

Correct Answer: A

Rationale: Green leafy vegetables and liver are high in Vitamin K, which antagonizes Coumadin (warfarin), reducing its anticoagulant effect.

Question 3 of 5

Which of the following is correct in NGT feeding?

A. Do not give the feeding and notify the doctor of residual of the last feeding is greater than or equal to 50 ml B. Height of the feeding should be 12 inches about the tube point of insertion to allow slow introduction of feeding C. Ask the client to position in supine position immediately after feeding to prevent dumping syndrome D. Clamp the NGT before all of the water is instilled to prevent air entry in the stomach

Correct Answer: B

Rationale: The feeding height of 12 inches ensures a slow, safe infusion rate via gravity, preventing complications.

Question 4 of 5

Oxygen at the rate of 2 LPM through nasal cannula is prescribed for a client with COPD. Which of the following statements best describes why the oxygen therapy is maintained at a relatively low concentration?

A. The oxygen will be lost in the clients nostrils if given at a higher level with nasal cannula B. The clients long history of respiratory problems indicated that he would be unable to absorb oxygen given at higher rate C. The cells in the alveoli are damaged by the clients long history of respiratory problems that increased oxygen levels and reduce CO2 levels likely will cause the cells to burst D. The client's respiratory center is so accustomed to high CO2 and low blood O2 concentrations with oxygen therapy may eliminate his stimulus for breathing

Correct Answer: D

Rationale: In COPD, high O2 can suppress the hypoxic drive, reducing respiratory stimulus due to chronic CO2 retention.

Question 5 of 5

Which of the following statements regarding the use of an oral airway is correct?

A. An oral airway is suitable for conscious patients with intact gag reflex B. Insertion of an oral airway can cause injury to the hard palate C. The correct size of the oral airway should be determined by measuring from the corner of the mouth to the tip of the earlobe D. An oral airway can be used to secure the endotracheal tube

Correct Answer: B

Rationale: Insertion of an oral airway can injure the hard palate if not done carefully, making this statement correct.

Which of the following is TRUE about Expiration?

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