ATI RN
Central Nervous System Stimulants and Related Drugs NCLEX Style Questions Questions
Question 1 of 5
Epinephrine HCl has little or no effect on
Correct Answer: A
Rationale: Epinephrine is poorly absorbed through unbroken skin but is effective on mucosal surfaces.
Question 2 of 5
What is the mechanism of action of clonidine?
Correct Answer: B
Rationale: Clonidine works as an alpha-2 adrenergic agonist, reducing sympathetic outflow and lowering blood pressure.
Question 3 of 5
The drug/drugs used mainly for induction of general anesthesia is/are
Correct Answer: D
Rationale: Thiopentone fentanyl + droperidol and ketamine are all used for induction of anesthesia in different clinical scenarios.
Question 4 of 5
A 54-year-old woman suffering from initial insomnia was prescribed a hypnotic drug that increases the activity of a major neurotransmitter system in the brain. Which of the following neurotransmitter systems was most likely involved in the therapeutic action of that drug?
Correct Answer: D
Rationale: In the treatment of insomnia, drugs that enhance GABAergic activity are commonly prescribed as they help promote relaxation and sleep. GABA is the major inhibitory neurotransmitter in the brain, and increasing its activity can lead to sedative effects, making it a likely target for a hypnotic drug.
Question 5 of 5
Following mediators are involved in acute inflammation except
Correct Answer: C
Rationale: Interferons are involved in antiviral defense and immune modulation, not acute inflammation.