ATI RN
Central Nervous System Stimulants and Related Drugs NCLEX Style Questions Questions
Question 1 of 5
Which of the following opiate receptors is paired correctly with a physiological or psychological action?
Correct Answer: C
Rationale: Mu receptors (choice C) mediate respiratory depression, a key morphine effect. Mu doesn't cause dysphoria (choice A), kappa causes dysphoria, not euphoria (choice B), and delta (choice D) isn't primarily dysphoric. This correct pairing reflects opioid pharmacology.
Question 2 of 5
Choose the correct statement from the following
Correct Answer: C
Rationale: Picrotoxin is a GABA-A receptor antagonist that blocks chloride channels, leading to convulsant effects.
Question 3 of 5
Which of the following opiate receptors is paired correctly with a physiological or psychological action?
Correct Answer: C
Rationale: Mu receptors (choice C) mediate respiratory depression, a key morphine effect. Mu doesn't cause dysphoria (choice A), kappa causes dysphoria, not euphoria (choice B), and delta (choice D) isn't primarily dysphoric. This correct pairing reflects opioid pharmacology.
Question 4 of 5
A physician has a choice in benzodiazepines to prescribe for patients. A particular patient (a 53-year-old man with anxiety) has a difficult time with compliance to medications. The physician is concerned about the patient going into withdrawal because of abrupt discontinuation of the antianxiety medication. Which of the following medications would have the least severe withdrawal reaction?
Correct Answer: A
Rationale: Diazepam has a long half-life, which reduces the risk of severe withdrawal symptoms compared to shorter-acting benzodiazepines like triazolam.
Question 5 of 5
Which of the following effects most likely occurred during surgery?
Correct Answer: D
Rationale: The correct answer is D. Increased skeletal muscle tone, fever, skeletal muscle contractions, and diaphoresis are signs of malignant hyperthermia, a rare but life-threatening condition triggered by certain anesthesia agents like halothane and succinylcholine in susceptible individuals. This condition can lead to severe metabolic and respiratory acidosis, cardiac arrhythmias, and hyperkalemia.