ATI RN
Central Nervous System Stimulants and Related Drugs NCLEX Style Questions Questions
Question 1 of 5
Which of the following is a GABA transaminase inhibitor?
Correct Answer: B
Rationale: Vigabatrin inhibits GABA transaminase
Question 2 of 5
Which of the following signs and symptoms did the girl most likely experience just after smoking?
Correct Answer: B
Rationale: The symptoms described in the scenario, such as elevated mood, rapid speech, muscle twitching, and dilated pupils, are consistent with the effects of marijuana use. Increased heart rate is a common physiological response to smoking marijuana due to the drug's impact on the cardiovascular system. Additionally, euphoria and uncontrollable laughter are typical psychological effects of marijuana use, further supporting the choice of increased heart rate as the correct answer.
Question 3 of 5
The following receptors are affected by antipsychotic drugs EXCEPT:
Correct Answer: C
Rationale: Antipsychotics (e.g., haloperidol) block central D2 (choice A) and 5-HT2 receptors (choice B) for efficacy, and muscarinic receptors (choice D) peripherally, causing side effects. Peripheral H2 receptors (choice C), involved in gastric acid secretion, aren't significantly affected; H1 antagonism occurs instead. This exception clarifies antipsychotic receptor profiles.
Question 4 of 5
The prostanoid that consistently constricts blood vessels is
Correct Answer: C
Rationale: Thromboxane A2 is a potent vasoconstrictor and platelet aggregator, playing a key role in clot formation.
Question 5 of 5
A 21-year-old woman presents to her primary care physician complaining of “feeling sleepy all the time.†Physical exam is normal, but she has a history of hay fever since she was 14 years old. You discover that she is currently taking medicine for her allergy but cannot remember the name. She says it controls her hay fever symptoms well. You suspect that her medication is causing her to feel sleepy. Which of the following would be most likely to cause drowsiness?
Correct Answer: C
Rationale: Doxylamine, an antihistamine, is known to cause drowsiness due to its sedative effects on the central nervous system.