ATI RN
Central Nervous System Stimulants and Related Drugs NCLEX Style Questions Questions
Question 1 of 5
An action common to most general anesthetics
Correct Answer: C
Rationale: Many general anesthetics inhibit glutamate (excitatory neurotransmitter) to produce sedation and anesthesia.
Question 2 of 5
Which of the following statements regarding drugs of abuse is true?
Correct Answer: B
Rationale: LSD exerts its hallucinogenic effects through serotonin (5-HT) receptor modulation.
Question 3 of 5
A first-year surgery intern has rotated on numerous surgical services. He has gotten quite used to ordering morphine for pain control. However, which of the following is an absolute contraindication to opioid use?
Correct Answer: A
Rationale: Closed head injury (choice A) contraindicates morphine due to respiratory depression and ICP elevation, masking neurological signs. MI (choice B), pulmonary edema (choice C), and diarrhea (choice D) benefit from morphine. This exception ensures safety.
Question 4 of 5
A 72-year-old man is brought to his physician by his son. The son complains that this patient has been becoming forgetful, confused, moody, and aggressive over the past few months. One drug that may be used to treat this patient's symptoms is donepezil. Which of the following describes an effect of donepezil?
Correct Answer: D
Rationale: Donepezil, a cholinesterase inhibitor, increases synaptic acetylcholine levels by preventing its breakdown, improving cognitive function in Alzheimer's disease.
Question 5 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.