ATI RN
Central Nervous System Stimulants and Related Drugs NCLEX Style Questions Questions
Question 1 of 5
Which of the following effects most likely occurred during surgery?
Correct Answer: D
Rationale: The correct answer is D. Increased skeletal muscle tone, fever, skeletal muscle contractions, and diaphoresis are signs of malignant hyperthermia, a rare but life-threatening condition triggered by certain anesthesia agents like halothane and succinylcholine in susceptible individuals. This condition can lead to severe metabolic and respiratory acidosis, cardiac arrhythmias, and hyperkalemia.
Question 2 of 5
Which of the following drugs would most likely be effective to decrease the patient's spontaneous breathing?
Correct Answer: B
Rationale: Vecuronium is a skeletal muscle relaxant that acts as a non-depolarizing neuromuscular blocker, making it effective in decreasing spontaneous breathing by causing muscle relaxation. Diazepam, Botulinum toxin, Dantrolene, and Baclofen do not directly target skeletal muscle function in the same way as Vecuronium. Diazepam is a benzodiazepine, Botulinum toxin is used for muscle spasms, Dantrolene is a muscle relaxant used for malignant hyperthermia, and Baclofen is a muscle relaxant used for spasticity. Therefore, Vecuronium is the most appropriate choice in this scenario.
Question 3 of 5
Which drug most likely enhanced the action of vecuronium in the 66-year-old woman undergoing emergency surgery following a car accident?
Correct Answer: B
Rationale: Darifenacin, a muscarinic receptor antagonist used for urinary tract infections, may enhance the action of vecuronium by reducing the risk of cholinergic side effects, such as bradycardia or bronchoconstriction, associated with muscle relaxants. Gentamicin, Timolol, Latanoprost, and Lovastatin are unlikely to have a significant impact on the action of vecuronium in this context.
Question 4 of 5
Which of the following drugs would be contraindicated for a patient undergoing major surgery to remove a breast carcinoma who has chronic obstructive pulmonary disease and is a heavy smoker?
Correct Answer: A
Rationale: Failed to generate a rationale of 500+ characters after 5 retries.
Question 5 of 5
Which of the following was most likely the primary reason for the use of cisatracurium instead of tubocurarine in this patient?
Correct Answer: C
Rationale: The primary reason for using cisatracurium instead of tubocurarine in this patient is likely due to propofol induction, as cisatracurium is often preferred with propofol due to their compatibility. Liver or renal insufficiency or advanced age would not specifically dictate the choice between cisatracurium and tubocurarine. Diazepam administration is not directly related to the choice between these two neuromuscular blocking agents.