Author Question: Drug X has a median lethal dose of 30 mg and a median effective dose of 10. Drug Y has a therapeutic ... (Read 49 times)

saraeharris · **on:** Jul 23, 2018

Drug X has a median lethal dose of 30 mg and a median effective dose of 10. Drug Y has a therapeutic index of 4, while drug Z has a therapeutic index of 3. Which statement is accurate based on this information?

1. Drugs X and Y are safer than drug Z.
2. The therapeutic index of drug X is 20.
3. Drug Y is the safest of the three.
4. Drug Z is the safest of the three.

Question 2

The median effective dose is best described as

1. the amount of a drug that produces an effect without the presence of adverse effects.
2. the amount of a drug that is metabolized within 24 hours.
3. the amount of a drug that causes an effect in half the population.
4. the amount of a drug that causes an effect in more than half of the population.

Benayers · **Reply #1 on:** Jul 23, 2018

Answer to Question 1

Correct Answer: 3
Rationale: Drug Y is the safest.

Answer to Question 2

Correct Answer: 1
Rationale: The median effective dose is the amount of a drug that produces an effect without the presence of adverse effects.