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Therapeutic Index Quiz

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Questions and Answers

Which of the following best describes the Therapeutic Index?

The ratio between the dose that produces desirable effects and the dose that produces harmful effects

The ratio between the dose that produces desirable effects and the dose that kills half the animals

The ratio between the dose that produces harmful effects and the dose that kills half the animals

The ratio between the dose that produces harmful effects and the dose that produces desirable effects (correct)

What does LD50 stand for?

Lethal Dose 05%

Lethal Dose 50 animals

Lethal Dose 50% (correct)

Lethal Dose 05 animals

What is the formula for calculating the Therapeutic Index?

TI = LD50 / ED05

TI = LD50 * ED50

TI = LD05 / ED50

TI = LD50 / ED50 (correct)

Study Notes

Therapeutic Index

The Therapeutic Index is a measure of the relative safety of a drug, describing the ratio of the dose that produces a toxic effect to the dose that produces a therapeutic effect.
LD50 stands for Lethal Dose 50%, which is the dose of a drug that is lethal to 50% of the test population.

Calculating Therapeutic Index

The formula for calculating the Therapeutic Index is: TI = LD50 / ED50, where ED50 is the Effective Dose 50%, which is the dose of a drug that produces a therapeutic effect in 50% of the test population.

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Description

Test your knowledge on Therapeutic Index and its importance in determining the safety and effectiveness of medications. Learn about lethal dose (LD) and effective dose (ED) in this quiz.