ATI RN
Pharmacology CNS Drugs Quizlet Questions
Question 1 of 5
Chlorpromazine produces its antipsychotic effect by:
Correct Answer: B
Rationale: Chlorpromazine, a typical antipsychotic, blocks D2 receptors (choice B) in the mesolimbic pathway, reducing positive schizophrenia symptoms. D1 blockade (choice A) is less critical, adrenergic (choice C) and opiate (choice D) blockade are side effects, not primary. D2 antagonism is its core mechanism.
Question 2 of 5
Which of the following pairs of a drug and its indication is FALSE?
Correct Answer: D
Rationale: Thiopentone (choice A), Isoflurane (choice B), and Procaine (choice C) match their indications (anesthesia induction, maintenance, local anesthesia). Chlorpromazine (choice D), an antipsychotic, causes hypotension as a side effect, not a treatment, making it false. This tests drug-indication accuracy.
Question 3 of 5
A patient develops status epilepticus. Which of the following drugs or drug combinations, given IV, is considered 'preferred' treatment for this situation?
Correct Answer: D
Rationale: Lorazepam then phenytoin (choice D) is preferred for status epilepticus; lorazepam stops seizures acutely via GABA, phenytoin prevents recurrence via sodium channels. Chlorpromazine/haloperidol (choice A) are antipsychotics, Valproic acid (choice B) is slower, and Flumazenil (choice C) reverses benzodiazepines. This sequence is standard.
Question 4 of 5
Treatment of acute morphine poisoning includes all the following EXCEPT:
Correct Answer: B
Rationale: Failed to generate a rationale of 500+ characters after 5 retries.
Question 5 of 5
A young boy who has been treated for epilepsy for a year is referred to a dentist for evaluation of massive overgrowth of his gingival tissue. Which of the following drugs was the most likely cause of the oral pathology?
Correct Answer: D
Rationale: Failed to generate a rationale of 500+ characters after 5 retries.