ATI RN
Central Nervous System Stimulants and Related Drugs NCLEX Style Questions Questions
Question 1 of 5
The characteristic feature of phenytoin pharmacokinetics is
Correct Answer: C
Rationale: Phenytoin follows nonlinear (saturation) kinetics meaning small dose increases can cause disproportionate rises in blood levels.
Question 2 of 5
Zolpidem is used as
Correct Answer: C
Rationale: Zolpidem is used primarily as a sedative and hypnotic drug for the short-term treatment of insomnia.
Question 3 of 5
Which of the following opioids would be contraindicated in this patient?
Correct Answer: A
Rationale: In a patient with acute myocardial infarction, morphine would be contraindicated due to its potential to cause hypotension and respiratory depression, which can exacerbate the patient's condition.
Question 4 of 5
A 38-year-old woman presents to the ophthalmologist for a routine eye examination. She is given intraocular pilocarpine. She was supposed to be administered two drops in each to dilate the eyes for the examination. Unfortunately, the eyedrops were administered by a new technician who inadvertently administered 10 drops of pilocarpine in each eye. Which of the following agents should be immediately given to the patient?
Correct Answer: A
Rationale: Atropine, an anticholinergic agent, can counteract the effects of excessive pilocarpine, which is a cholinergic agonist, by blocking muscarinic receptors.
Question 5 of 5
Which of the following opiate receptors is paired correctly with a physiological or psychological action?
Correct Answer: C
Rationale: Mu receptors (choice C) mediate respiratory depression, a key morphine effect. Mu doesn't cause dysphoria (choice A), kappa causes dysphoria, not euphoria (choice B), and delta (choice D) isn't primarily dysphoric. This correct pairing reflects opioid pharmacology.