ATI RN
Questions Respiratory System Questions
Question 1 of 5
The primary chemical stimulus for breathing is the concentration of
Correct Answer: B
Rationale: The correct answer is B: carbon dioxide in the blood. In the body, carbon dioxide levels are monitored by chemoreceptors in the brainstem. When carbon dioxide levels rise, it triggers an increase in breathing rate to expel excess carbon dioxide and restore the balance of gases in the blood. This process is known as the respiratory drive. Carbon monoxide (A) is a toxic gas that interferes with oxygen transport but does not directly affect breathing stimulus. Oxygen (C) levels in the blood are important for maintaining tissue oxygenation but do not directly regulate breathing. Carbonic acid (D) is a product of carbon dioxide and water, and its levels do not directly stimulate breathing.
Question 2 of 5
Diaphragm present in mammals is
Correct Answer: C
Rationale: The diaphragm in mammals is a muscular structure that separates the thoracic and abdominal cavities. This is essential for breathing as it contracts and relaxes to facilitate the movement of air into and out of the lungs. Therefore, the correct answer is C. Choice A is incorrect because the membrane between the external and middle ear is called the eardrum or tympanic membrane. Choice B is incorrect as the membrane around the brain is the meninges. Choice D is incorrect as the membrane around the lungs is the pleura.
Question 3 of 5
A nurse is demonstrating suctioning a tracheostomy during the annual skills review. What action by the student demonstrates that more teaching is needed?
Correct Answer: A
Rationale: The correct answer is A because applying suction while inserting the catheter can cause damage to the tracheal mucosa and lead to bleeding or injury. The correct technique is to insert the catheter without applying suction, then apply suction while withdrawing it. Preoxygenating the client (B) is a recommended practice to prevent hypoxia. Suctioning for a total of three times if needed (C) and suctioning for only 10 to 15 seconds each time (D) are both appropriate and safe suctioning practices.
Question 4 of 5
A nurse working in a geriatric clinic sees clients with "cold" symptoms and rhinitis. The primary health care provider (PHCP) often leaves a prescription for diphenhydramine. What action by the nurse is best?
Correct Answer: C
Rationale: The correct answer is C: Consult with the PHCP about the medication. This is the best action because diphenhydramine may not be the most appropriate medication for older adults due to potential side effects like increased risk of falls, confusion, and urinary retention. Consulting with the PHCP will ensure that the medication is safe and effective for the client. A: Teaching about drowsiness is important but not the priority. B: Drinking water is generally good advice but not specific to diphenhydramine. D: Taking medication with food can help reduce stomach upset but doesn't address the concerns related to diphenhydramine in older adults.
Question 5 of 5
When examining the posterior pharynx and tonsils, which of the following objective data does the nurse note?
Correct Answer: D
Rationale: The correct answer is D. Inflammation is a key finding during examination of the posterior pharynx and tonsils, especially in infections such as tonsillitis. A (difficulty in sneezing) is unrelated to pharyngeal assessment. B (suppressed gag reflex) might indicate neurological issues but isn't typically noted during routine exams. C (deformities) is rare unless there's structural abnormality.