ATI RN
Central Nervous System Stimulants and Related Drugs NCLEX Style Questions Questions
Question 1 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 2 of 5
Following agent is generally used in allergic rhinitis
Correct Answer: D
Rationale: All of these are corticosteroids commonly used for allergic rhinitis due to their anti-inflammatory effects.
Question 3 of 5
Which of the following drugs was most likely prescribed to the patient experiencing heavy drowsiness?
Correct Answer: A
Rationale: The patient reported heavy drowsiness as a side effect of the current medication. Amitriptyline is known to cause sedation and drowsiness, making it the most likely drug to have been prescribed in this case.
Question 4 of 5
A 7-year-old boy is brought to the emergency department by his parents after being stung by a bee. The parents say that he is allergic to bee stings, and the patient is having great difficulty breathing. Epinephrine is administered immediately. His symptoms improve as molecules of epinephrine bind to β\(_2\)-receptors in bronchial smooth muscle. Which of the following describes a feature of β\(_2\)-receptors?
Correct Answer: A
Rationale: β\(_2\)-adrenergic receptors are G-protein-coupled receptors that have seven transmembrane domains, which is a characteristic feature of this receptor family.
Question 5 of 5
Trichloroethanol is the active metabolite of:
Correct Answer: D
Rationale: Chloral hydrate (choice D) is metabolized to trichloroethanol, which depresses the CNS, inducing sedation. Morphine (choice A) metabolizes to active compounds like morphine-6-glucuronide, not trichloroethanol. Clorazepate (choice B) becomes desmethyldiazepam, a benzodiazepine. Phenobarbitone (choice C) is a barbiturate, not metabolized to trichloroethanol. This identifies Chloral hydrate's metabolic pathway, key for its hypnotic use.