ATI RN
Respiratory System Questions and Answers PDF Questions
Question 1 of 5
Regarding control of ventilation
Correct Answer: D
Rationale: The correct answer is D: Peripheral chemoreceptors respond to decreases in arterial pO2. These chemoreceptors located in the carotid bodies and aortic bodies detect changes in arterial pO2 levels, triggering an increase in ventilation to compensate for low oxygen levels. The apneustic center (A) is located in the pons, not the medulla. Central chemoreceptors (B) primarily respond to changes in arterial CO2 levels, not oxygen concentrations. The chemoreceptors in the aortic bodies (C) primarily respond to changes in arterial pCO2, not pH. Overall, choice D is correct due to the specific role of peripheral chemoreceptors in detecting decreases in arterial pO2 levels and regulating ventilation accordingly.
Question 2 of 5
A nurse is suctioning fluids from a male client via a tracheostomy tube. When suctioning, the nurse must limit the suctioning time to a maximum of:
Correct Answer: C
Rationale: The correct answer is C: 10 seconds. Suctioning time for a tracheostomy tube should be limited to 10 seconds to prevent hypoxia and tissue damage. Prolonged suctioning can lead to decreased oxygenation and potential trauma to the airway. Choice A (1 minute) is too long and can cause harm. Choice B (5 seconds) is too short to effectively clear secretions. Choice D (30 seconds) exceeds the recommended time limit and can lead to complications. Therefore, limiting suctioning time to 10 seconds is the safest and most effective approach.
Question 3 of 5
A nurse is preparing to obtain a sputum specimen from a client. Which of the following nursing actions will facilitate obtaining the specimen?
Correct Answer: B
Rationale: Step 1: Taking deep breaths helps to bring sputum up from the lungs. Step 2: Coughing deeply helps to further bring sputum up. Step 3: This action facilitates the collection of a good sputum specimen. Step 4: Limiting fluids can make sputum thicker and harder to expectorate. Step 5: Asking the client to spit may result in saliva instead of sputum. Step 6: Asking for a specimen after eating can lead to contamination.
Question 4 of 5
Which of the following instructions should the nurse give a client about his active tuberculosis (TB)?
Correct Answer: D
Rationale: The correct answer is D because adherence to the medication regimen is crucial in treating active TB to prevent drug resistance and ensure successful treatment. Missing doses can lead to treatment failure and the spread of TB. Option A is incorrect because missing doses compromises treatment effectiveness. Option B is incorrect as stopping medication due to side effects can also result in treatment failure. Option C is incorrect because TB treatment must be completed as prescribed, regardless of symptom improvement.
Question 5 of 5
The atmospheric pressure at sea level is
Correct Answer: B
Rationale: The atmospheric pressure at sea level is typically around 760mm Hg, which is equivalent to 101.3 kilopascals. This is the standard atmospheric pressure used in various scientific calculations. This value represents the pressure exerted by the weight of air above a given area at sea level. Choice B is correct because it accurately reflects the standard atmospheric pressure at sea level. Choices A, C, and D are incorrect as they do not match the accepted value for atmospheric pressure at sea level.