ATI RN
Introduction to the Pharmacology of CNS Drugs Questions
Question 1 of 5
An advantage of dextromethorphan over codeine as an antitussive is that it:
Correct Answer: D
Rationale: Failed to generate a rationale of 500+ characters after 5 retries.
Question 2 of 5
Which of the following agents are known to reduce the renal excretion of lithium?
Correct Answer: B
Rationale: Thiazides (choice B) reduce lithium excretion by increasing proximal tubule reabsorption, risking toxicity. Triamterene (choice A), a potassium-sparing diuretic, Beta-blockers (choice C), and Alpha-blockers (choice D) don't significantly affect lithium. This interaction is critical in bipolar management.
Question 3 of 5
A patient in the neurology unit at your hospital develops severe sustained seizures without period of recovery. Which of the following is the best first IV drug to give?
Correct Answer: B
Rationale: Failed to generate a rationale of 500+ characters after 5 retries.
Question 4 of 5
A 36-year-old male has been smoking 2 packs of cigarettes a day for the last 20 years. He has tried nicotine patches with no success and wants to know if there is any 'pill he could try'. What medication could the physician recommend?
Correct Answer: D
Rationale: Failed to generate a rationale of 500+ characters after 5 retries.
Question 5 of 5
Patients under long use of glucocorticoids are advised NOT to:
Correct Answer: A
Rationale: Glucocorticoids (e.g., prednisone) suppress the HPA axis with prolonged use, requiring gradual tapering to avoid adrenal insufficiency (choice A), a potentially fatal withdrawal effect. Monitoring blood glucose (choice B) is advised due to hyperglycemia risk. A potassium/calcium-rich diet (choice C) counters hypokalemia and osteoporosis. Salt reduction (choice D) manages fluid retention. Sudden cessation is the key precaution, emphasizing the need for tapering schedules to restore adrenal function safely.