ATI RN
Respiratory System Practice Questions Questions
Question 1 of 5
In human beings, CO2 concentration in the inspired and expired air is respectively
Correct Answer: D
Rationale: The correct answer is D (0.03% and 4.0%). The inspired air contains approximately 0.03% CO2, as the atmosphere has a low CO2 concentration. During expiration, the CO2 concentration in the air increases due to the removal of oxygen and the addition of CO2 from cellular respiration, resulting in an average of around 4.0% CO2 in expired air. Choices A, B, and C are incorrect because they do not accurately reflect the typical CO2 concentrations in inspired and expired air in human beings.
Question 2 of 5
A client is wearing a Venturi mask to deliver oxygen and the dinner tray has arrived. What action by the nurse is best?
Correct Answer: B
Rationale: The correct answer is B. Switching to a nasal cannula during meals allows the client to eat comfortably while still receiving oxygen. This ensures proper oxygenation during meals without compromising nutrition. Option A is incorrect because oxygen should not be turned off without a healthcare provider's order. Option C is incorrect as lifting the mask can reduce oxygen delivery. Option D is incorrect as oxygen should not be turned off abruptly. Switching to a nasal cannula is the safest and most appropriate option for clients using a Venturi mask during meals.
Question 3 of 5
A client admitted for pneumonia has been tachypneic for several days. When the nurse starts an IV to give fluids the client questions this action saying " have been drinking tons of water. How am I dehydrated?" What response by the nurse is best?
Correct Answer: A
Rationale: The correct answer is A because tachypnea, or rapid breathing, can lead to excessive loss of fluids through respiration, causing dehydration. This explanation educates the client on the physiological reason behind their dehydration. Choice B is incorrect as not all pneumonia patients are dehydrated. Choice C is incorrect as it does not address the dehydration concern. Choice D is incorrect as it does not provide a clear explanation of the link between tachypnea and dehydration.
Question 4 of 5
Which of the following is an important preventive factor that the nurse should teach a client with rhinitis?
Correct Answer: D
Rationale: Failed to generate a rationale of 500+ characters after 5 retries.
Question 5 of 5
You are supervising an RN who was pulled from the medical-surgical floor to the emergency department (ED). The nurse is providing care for a client admitted with anterior epistaxis (nosebleed). Which of these directions will you clearly provide to the RN? (Choose all that apply.)
Correct Answer: D
Rationale: The correct answer includes B, C, and D. Applying direct pressure (B), maintaining universal precautions (C), and applying ice or cool compresses (D) are appropriate interventions for managing epistaxis. Positioning the client supine and turned on their side (A) is incorrect as it could lead to aspiration of blood.