ATI RN
Central Nervous System Stimulants and Related Drugs NCLEX Style Questions Questions
Question 1 of 5
Which of the following molecular actions most likely mediated the analgesic effect of morphine in the patient with multiple fractures?
Correct Answer: D
Rationale: The opening of K+ channels on postsynaptic neurons is a key molecular action that mediates the analgesic effect of opioids like morphine. This action leads to hyperpolarization of the neuron, reducing its excitability and inhibiting pain transmission. Therefore, in a patient with severe pain due to multiple fractures, the opening of K+ channels by morphine would be the most likely mechanism responsible for the analgesic effect.
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
All of the following medications should be avoided in the third trimester of pregnancy, except
Correct Answer: A
Rationale: Acetaminophen is considered safe during pregnancy, while NSAIDs, warfarin, lithium, and aspirin pose risks in the third trimester.
Question 4 of 5
A 42-year-old man is diagnosed with diabetes mellitus. He has tried diet and exercise without success. A second-generation sulfonylurea agent is prescribed. Which of the following is the most likely side effect he will experience?
Correct Answer: A
Rationale: Second-generation sulfonylureas (e.g., glimepiride, choice A) cause hypoglycemia by stimulating insulin release, a common side effect. Lactic acidosis (choice B) is Metformin-related, myositis (choice C) and pruritus (choice D) aren't typical. Hypoglycemia requires monitoring.
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.