ATI RN
Respiratory System Questions and Answers PDF Questions
Question 1 of 5
Oxygen and carbon dioxide concentration in the alveolar air is respectively
Correct Answer: D
Rationale: The correct answer is D (13.1% oxygen and 5% carbon dioxide). In the alveolar air, the oxygen concentration is around 13.1%, which is lower than atmospheric air (21%) due to gas exchange in the lungs. The carbon dioxide concentration in alveolar air is around 5%, higher than atmospheric air (0.04%). Choices A, B, and C have oxygen concentrations higher than what is found in alveolar air, making them incorrect. Choice B also has a carbon dioxide concentration higher than what is typically found in alveolar air, making it incorrect.
Question 2 of 5
The nurse assesses the client using the device pictured below to deliver 50% O2: The nurse finds that the mask fits snugly the skin under the mask and straps is intact and the flow rate of the oxygen is 3 L/min. What action by the nurse is best?
Correct Answer: C
Rationale: The correct answer is C: Immediately increase the flow rate. A flow rate of 3 L/min is inadequate to deliver 50% O2 through a mask. Increasing the flow rate will ensure the client receives the prescribed oxygen concentration. Incorrect choices: A: Assess the client's oxygen saturation - This is not the priority as the oxygen delivery is suboptimal. B: Document these findings in the chart - Documentation is important but addressing the oxygen delivery issue is more critical. D: Turn the flow rate down to 2 L/min - This would further reduce the oxygen concentration, which is not appropriate in this case.
Question 3 of 5
An older adult is brought to the emergency department by a family member who reports a moderate change in mental status and mild cough. The client is afebrile. The primary health care provider orders a chest x-ray. The family member questions why this is needed since the symptoms seem so vague. What response by the nurse is best?
Correct Answer: B
Rationale: The correct answer is B because older adults often present with atypical or vague symptoms when they have an underlying infection, including pneumonia. It is crucial to assess for pneumonia in older adults promptly because they may not exhibit classic signs like fever. An x-ray is essential to confirm or rule out pneumonia as it allows for visualization of lung abnormalities. Choice A is incorrect because not all older adults with vague symptoms automatically have pneumonia, and ordering a chest x-ray is based on clinical judgment. Choice C is incorrect as the timing of the x-ray in relation to laboratory work is not the primary reason for ordering it. Choice D is incorrect because the x-ray is specifically to assess for pneumonia, not for general infection sources.
Question 4 of 5
Which of the following signs may be revealed in a client with tonsillar infection by a visual examination if group A streptococci is the cause?
Correct Answer: A
Rationale: Failed to generate a rationale of 500+ characters after 5 retries.
Question 5 of 5
The client with sleep apnea has a nursing diagnosis of Sleep Deprivation related to disrupted sleep cycle. Which action should you delegate to the nursing assistant?
Correct Answer: C
Rationale: The correct answer is C. Reminding the client to sleep on their side is a simple intervention suitable for a nursing assistant. Discussing weight loss strategies (A) and teaching BiPAP machine use (B) require more specialized knowledge. Administering medication (D) is outside the scope of practice for a nursing assistant.