ATI RN
Respiratory System NCLEX Questions Questions
Question 1 of 5
In human beings, partial pressure of carbon dioxide in the inspired and expired air is respectively
Correct Answer: B
Rationale: The correct answer is B (0.3 and 32 mm Hg) because in inspired air, the partial pressure of carbon dioxide is low at around 0.3 mm Hg, whereas in expired air, the partial pressure of carbon dioxide is higher at around 32 mm Hg due to gas exchange in the lungs. Choice A (0.3 and 40 mm Hg) is incorrect because the partial pressure of carbon dioxide in inspired air is not typically as high as 40 mm Hg. Choice C (40 and 46 mm Hg) is incorrect because the values are reversed; the partial pressure of carbon dioxide is higher in expired air compared to inspired air. Choice D (40 and 0.3 mm Hg) is incorrect as the values are reversed, and the partial pressure of carbon dioxide in inspired air is not typically as high as 40 mm Hg.
Question 2 of 5
A client is receiving oxygen at 4 L per nasal cannula. What comfort measure may the nurse delegate to assistive personnel (AP)?
Correct Answer: A
Rationale: The correct answer is A because applying water-soluble ointment to nares and lips helps prevent skin breakdown and discomfort caused by the oxygen flow. This task is within the scope of practice for assistive personnel (AP) as it does not require specialized medical knowledge or training. Choice B is incorrect because adjusting oxygen flow should only be done by licensed healthcare providers based on the client's prescribed oxygen therapy. Choice C is incorrect as replacing oxygen tubing requires knowledge of oxygen delivery systems and potential risks associated with incorrect tubing selection. Choice D is incorrect because turning the client every 2 hours is a nursing intervention related to preventing pressure ulcers, not specifically related to oxygen therapy comfort measures.
Question 3 of 5
The charge nurse on a medical unit is preparing to admit several "clients" who have possible pandemic flu during a preparedness drill. What action by the nurse is best?
Correct Answer: B
Rationale: The correct answer is B because in a pandemic flu scenario, it is crucial to inquire about recent travel history to identify potential exposure risks. This information can help determine if the "clients" have been in high-risk areas or in contact with infected individuals. This step is essential for implementing appropriate infection control measures and preventing the spread of the virus. Choice A is incorrect because Contact Precautions are not typically used for airborne infections like the flu. Choice C is incorrect as it discriminates against pregnant caregivers without any evidence-based rationale. Choice D is incorrect because enhanced Droplet Precautions are more suitable for diseases spread through respiratory droplets, not necessarily for pandemic flu with potential airborne transmission.
Question 4 of 5
Which of the following nursing activities is most important when a client comes back from a respiratory test if they have respiratory problems?
Correct Answer: B
Rationale: The correct answer is B. Assessing the airway is critical immediately after a respiratory test, especially if the client has pre-existing respiratory issues. A (rest) is secondary until stability is confirmed. C and D involve education, which is important but not urgent compared to ensuring airway patency.
Question 5 of 5
You are supervising a student nurse who is performing tracheostomy care for a client. For which action should you intervene?
Correct Answer: A
Rationale: The correct answer is A. Suctioning prior to tracheostomy care is incorrect because it increases the risk of introducing infection. Removing old dressings and cleaning secretions (B), removing and cleaning the inner cannula (C), and replacing the inner cannula and cleaning the stoma site (D) are standard steps in tracheostomy care.