ATI RN
Multiple Choice Questions on Respiratory System Questions
Question 1 of 5
Stimulation of the apneustic center would result in
Correct Answer: B
Rationale: The correct answer is B: more intense inhalation. The apneustic center is responsible for prolonging inhalation by stimulating the inspiratory neurons in the medulla oblongata. When the apneustic center is stimulated, it disrupts the normal breathing pattern, causing a prolonged and more intense inhalation. This results in deeper and more forceful breaths. Incorrect choices: A: increased respiratory rate - Stimulation of the apneustic center would not lead to an increased respiratory rate, but rather to changes in the depth and intensity of inhalation. C: a shorter respiratory cycle - The apneustic center's stimulation does not lead to a shorter respiratory cycle, but rather to a prolonged inhalation phase. D: less activity in the DRG center - The dorsal respiratory group (DRG) is responsible for initiating inspiration, and the apneustic center does not affect its activity.
Question 2 of 5
The portion of the lung ventilated by one bronchioles is called......
Correct Answer: C
Rationale: The correct answer is C: Pulmonary lobule. A pulmonary lobule is the portion of the lung ventilated by one bronchiole. This is because each bronchiole branches into smaller airways ending in clusters of alveoli called pulmonary lobules. The other choices are incorrect because: A) Terminal bronchioles are the smallest airways in the respiratory tract, not the portion of the lung ventilated by one bronchiole. B) Bronchiole tree is not a specific anatomical term. D) Primary bronchioles are the branches of the main bronchi and are not associated with the specific portion of the lung ventilated by one bronchiole.
Question 3 of 5
Branches of bronchial tree
Correct Answer: B
Rationale: The correct answer is B because it correctly lists the branches of the bronchial tree in order: trachea-primary bronchi-secondary bronchi-tertiary bronchi-bronchioles-terminal. The trachea divides into the primary bronchi, which further divide into secondary bronchi, followed by tertiary bronchi, bronchioles, and finally terminal bronchioles. Choice A is incorrect because it lists "primary bronchi_trachea" which is out of order and "tertiary_bronchioles" instead of "tertiary bronchi." Choice C is incorrect because it combines the incorrect order of branches from both A and B. Choice D, "itis," is not a valid term related to the branches of the bronchial tree.
Question 4 of 5
The nurse is caring for a patient immediately postoperative after a left pneumonectomy. How should the nurse position the patient?
Correct Answer: D
Rationale: Step-by-step rationale for why choice D is correct: 1. Post-pneumonectomy, positioning the patient on the left side allows the remaining lung to expand fully. 2. This position promotes better ventilation and perfusion, aiding in oxygenation. 3. Placing the patient on the left side also helps prevent pressure on the surgical site. 4. The left side-lying position also facilitates drainage and prevents pooling of secretions in the surgical area. Summary of why other choices are incorrect: A. High Fowler position may cause increased pressure on the surgical site and impede lung expansion. B. Semi-Fowler position may not optimize lung expansion and could lead to decreased oxygenation. C. Right side-lying position is not ideal as it does not facilitate full expansion of the remaining lung and may cause pooling of secretions.
Question 5 of 5
A 62-yr-old client who has no history of hypertension or other health problems suddenly develops a blood pressure (BP) of 198/110 mm Hg. After reconfirming the BP.What is most appropriate for the nurse to tell the client
Correct Answer: C
Rationale: The correct answer is C because a sudden spike in blood pressure to 198/110 mm Hg is considered hypertensive crisis requiring immediate medical attention. The nurse should inform the client that diagnosis, treatment, and monitoring are necessary to address the high blood pressure. This is important to prevent serious complications like stroke or heart attack. Option A is incorrect because waiting a few weeks for a BP recheck could be dangerous in this scenario. Option B is also incorrect as simple dietary changes may not be sufficient to address such high blood pressure levels. Option D is incorrect as hospitalization may or may not be required based on the assessment and treatment plan determined by the healthcare provider.