ATI RN
Central Nervous System Stimulants and Related Drugs NCLEX Style Questions Questions
Question 1 of 5
Which of the following statements concerning morphine and hydromorphone is true?
Correct Answer: D
Rationale: Hydromorphone is more potent than morphine because it requires a lower dose (smaller ED50) to produce the same analgesic effect.
Question 2 of 5
Peak serum level of orally administered lithium is usually achieved in
Correct Answer: C
Rationale: Lithium reaches its peak serum levels typically within 2 to 4 hours after oral administration.
Question 3 of 5
When used as monotherapy, a major toxicity of gemfibrozil is increased risk of
Correct Answer: B
Rationale: Gemfibrozil increases cholesterol excretion in bile, which can lead to gallstone formation (cholelithiasis).
Question 4 of 5
Following mediators are involved in acute inflammation except
Correct Answer: C
Rationale: Interferons are involved in antiviral defense and immune modulation, not acute inflammation.
Question 5 of 5
Epinephrine added to a solution of lidocaine for a peripheral nerve block will
Correct Answer: B
Rationale: Epinephrine causes vasoconstriction, reducing systemic absorption and prolonging the duration of the local anesthetic effect.