ATI RN
Questions About the Respiratory System Questions
Question 1 of 5
Diaphragm is supplied with Phrenic nerve and is involved in
Correct Answer: D
Rationale: The correct answer is D: All these. The phrenic nerve innervates the diaphragm, which is responsible for inspiration (A). During parturition (B), the diaphragm plays a role in the pushing phase of labor. While the diaphragm is not directly involved in micturition and defecation (C), it indirectly affects these processes by helping to create intra-abdominal pressure. Therefore, the correct answer is D as the diaphragm is involved in inspiration, parturition, and indirectly affects micturition and defecation.
Question 2 of 5
The nurse is assessing a patient who frequently coughs after eating or drinking. How should the nurse best follow up this assessment finding?
Correct Answer: B
Rationale: The correct answer is B: Perform a swallowing assessment. This is the best follow-up because coughing after eating or drinking can be a sign of dysphagia, a swallowing disorder. By performing a swallowing assessment, the nurse can identify any issues with the patient's ability to swallow safely, which can lead to aspiration and respiratory complications. Obtaining a sputum sample (A) may not provide relevant information in this context. Inspecting the patient's tongue and mouth (C) may not directly address the coughing after eating. Assessing the patient's nutritional status (D) is important but may not address the immediate issue of coughing after eating or drinking.
Question 3 of 5
The nurse is performing a respiratory assessment of a patient who has been experiencing episodes of hypoxia. The nurse is aware that this is ultimately attributable to impaired gas exchange. On what factor does adequate gas exchange primarily depend?
Correct Answer: B
Rationale: The correct answer is B: An adequate ventilation-perfusion ratio. Adequate gas exchange primarily depends on the matching of ventilation (air reaching the alveoli) and perfusion (blood flow to the alveoli). A mismatch in this ratio can lead to impaired gas exchange, resulting in hypoxia. Option A relates to gas movement efficiency but does not address the matching of ventilation and perfusion. Option C mentions shunted blood, which is not directly related to the ventilation-perfusion ratio. Option D is unrelated to gas exchange. In summary, the ventilation-perfusion ratio is crucial for optimal gas exchange, making it the correct choice.
Question 4 of 5
The nasal conchae epithelial surface serves to:
Correct Answer: D
Rationale: Rationale: The nasal conchae increase surface area, causing air turbulence to warm, moisten, and filter inhaled air. This helps in preventing respiratory issues. Choice A is correct as it explains the primary function of the conchae. Choice B is incorrect as the primary function is not filtering. Choice C is incorrect as the conchae primarily warm and moisten inhaled air rather than recapture moisture from exhaled air. Overall, choice D is correct as it encompasses all the functions of the nasal conchae.
Question 5 of 5
Each of the following factors affects the rate of external respiration except the
Correct Answer: D
Rationale: The correct answer is D: PN2 of the alveoli. The rate of external respiration is primarily influenced by the partial pressure of oxygen (PO2) in the alveoli, as it drives oxygen diffusion into the blood. PCO2 affects the removal of carbon dioxide. The thickness of the respiratory membrane impacts gas exchange efficiency. However, PN2 does not significantly impact gas exchange in the lungs, as nitrogen (N2) is inert and does not participate in gas exchange. Thus, PN2 of the alveoli does not affect the rate of external respiration.