NURS 3100 Exam 1 Practice

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Why is the lethal dose measure important in drug prescription?

It helps in determining the minimum effective dose
It indicates the level at which a drug becomes ineffective
It is used in research to determine safe dosage levels
It is used to determine the potency of a drug

The correct answer is: It is used in research to determine safe dosage levels

The lethal dose measure is important in drug prescription because it is used in research to determine safe dosage levels. Knowing the lethal dose can help healthcare providers understand the maximum amount of a drug that can be given before it becomes toxic or fatal to the patient. This information is critical for prescribing medications safely and effectively to patients based on their individual needs and health conditions. Option A is not correct because the lethal dose measure does not help in determining the minimum effective dose. Option B is not correct because it does not indicate the level at which a drug becomes ineffective, but rather the level at which it becomes toxic or fatal. Option D is not correct because the lethal dose measure is not used to determine the potency of a drug, but rather its safety in terms of dosage levels.