ATI RN
Respiratory System NCLEX Questions Questions
Question 1 of 5
You are supervising a student nurse who is performing tracheostomy care for a client. For which action should you intervene?
Correct Answer: A
Rationale: The correct answer is A. Suctioning prior to tracheostomy care is incorrect because it increases the risk of introducing infection. Removing old dressings and cleaning secretions (B), removing and cleaning the inner cannula (C), and replacing the inner cannula and cleaning the stoma site (D) are standard steps in tracheostomy care.
Question 2 of 5
Two days after undergoing pelvic surgery, a patient develops marked dyspnea and anxiety. What is the first action that the nurse should take?
Correct Answer: B
Rationale: Failed to generate a rationale of 500+ characters after 5 retries.
Question 3 of 5
A nurse cares for a client who had a bronchoscopy 2 hours ago. The client asks for a drink of water. Which action should the nurse take next?
Correct Answer: C
Rationale: Correct Answer: C Rationale: 1. Assessing the client's gag reflex is crucial after a bronchoscopy to prevent aspiration. 2. Gag reflex helps protect the airway from foreign substances entering the lungs. 3. Providing food or water without assessing the gag reflex can lead to aspiration pneumonia. 4. It is essential to ensure the client's safety before allowing any intake post-bronchoscopy. Summary: A: Calling the physician for a prescription is not necessary at this immediate stage. B: Ice chips may still pose a risk if the client cannot protect their airway. D: Allowing a sip without assessing gag reflex may lead to aspiration.
Question 4 of 5
Pneumotaxic center is
Correct Answer: A
Rationale: The correct answer is A: Inhibitory. The pneumotaxic center is located in the upper pons and functions to inhibit inspiration, preventing overinflation of the lungs. This helps regulate the respiratory rate and depth. The other choices are incorrect because the pneumotaxic center does not accelerate or activate breathing directly. It exerts its influence by inhibiting the inspiratory neurons in the medulla, thereby controlling the duration and frequency of inspiration. Choice D is incorrect as the pneumotaxic center does have a specific inhibitory function in the respiratory control system.
Question 5 of 5
Carbonic anhydrase in the RBC is the fastest enzyme and it decomposes in one second for fast action. Its concentration in the blood is due to the presence of
Correct Answer: D
Rationale: The correct answer is D: Hemoglobin. Carbonic anhydrase is an enzyme found in red blood cells that rapidly catalyzes the conversion of carbon dioxide into bicarbonate ions. Hemoglobin plays a crucial role in transporting carbon dioxide in the blood. The high concentration of hemoglobin in red blood cells allows for efficient binding and transport of carbon dioxide, leading to the need for a rapid enzyme like carbonic anhydrase to facilitate its conversion. Plasma (choice A) does not directly influence the concentration of carbonic anhydrase. Carbon dioxide (choice B) is the substrate for carbonic anhydrase, not the reason for its concentration. Sodium ions (choice C) do not directly affect the action of carbonic anhydrase in red blood cells.