ATI RN
Questions and Answers on Respiratory System Questions
Question 1 of 5
The ________ inhibit the apneustic centers and promote passive or active exhalation.
Correct Answer: C
Rationale: The correct answer is C: pneumotaxic centers. The pneumotaxic centers are located in the pons and regulate the rate and depth of breathing by inhibiting the apneustic centers in the medulla. This inhibition helps to promote passive or active exhalation. A: DRG (dorsal respiratory group) is responsible for the initiation of inspiration. B: VRG (ventral respiratory group) is involved in both inspiration and expiration. D: LRG is not a recognized respiratory center in the brainstem. In summary, the pneumotaxic centers play a crucial role in regulating breathing by inhibiting the apneustic centers, leading to exhalation.
Question 2 of 5
which of the following part of the ear separate middle ear from outer ear
Correct Answer: D
Rationale: The correct answer is D: tympanic membrane because it separates the middle ear from the outer ear. The tympanic membrane, also known as the eardrum, vibrates in response to sound waves and transmits these vibrations to the middle ear. The oval window (A) is a membrane-covered opening in the inner ear that receives vibrations from the stapes bone. The round window (B) is a membrane-covered opening that equalizes pressure within the inner ear. The malleus (C) is a small bone in the middle ear that transmits sound vibrations from the eardrum to the incus. Therefore, the tympanic membrane is the correct answer as it physically separates the middle ear from the outer ear.
Question 3 of 5
In medical term shortness of breathing known as
Correct Answer: C
Rationale: The correct answer is C: Both A and B. "SOB" is the abbreviation for shortness of breath, while "dyspnea" is the medical term for difficulty breathing. Both terms are used interchangeably to describe the sensation of breathing difficulty. Choosing C is correct because it encompasses both terms that are synonymous with the medical condition. Option D is incorrect because there are appropriate terms for shortness of breathing, which are provided in options A and B. Option A is incorrect because it only provides the abbreviation for the term without the actual medical term. Option B is incorrect because it only provides one of the terms used to describe shortness of breathing, while the correct answer includes both terms.
Question 4 of 5
The patient with sleep apnea is fitted with a continuous positive airway pressure (CPAP) mask and asks the nurse how this device will help. How should the nurse respond?
Correct Answer: A
Rationale: The correct answer is A because a CPAP mask delivers a constant positive pressure to keep the airway open during sleep, preventing airway collapse and interruptions in breathing. This helps improve oxygenation and reduce the frequency of apnea episodes. Choice B is incorrect as intubation is not required with CPAP. Choice C is incorrect as CPAP does not deliver oxygen, it only provides pressurized air. Choice D is incorrect as CPAP delivers positive pressure, not negative pressure, to support breathing.
Question 5 of 5
Which blood pressure (BP) finding by the nurse indicates that no changes in therapy are needed for a 78-yr-old patient with newly diagnosed hypertension?
Correct Answer: B
Rationale: The correct answer is B (118/76 mm Hg) because it falls within the recommended range for a 78-year-old patient with hypertension. The systolic BP should ideally be below 140 mm Hg and the diastolic BP below 90 mm Hg for this age group. Option A is too low for systolic BP, indicating hypotension. Option C has elevated diastolic BP, suggesting uncontrolled hypertension. Option D has high systolic BP, indicating a need for therapy adjustment. Thus, only option B aligns with the guidelines, making it the correct choice.