NAPLEX (North American Pharmacist Licensure Examination) Practice Exam

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Study for the NAPLEX exam with a comprehensive quiz featuring multiple-choice questions and in-depth explanations. Build your pharmacological knowledge and increase your chances of passing the pharmacist licensure examination!

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Approximately how many milligrams are in 1 grain?

  1. 45 mg

  2. 55 mg

  3. 64.8 mg

  4. 75 mg

The correct answer is: 64.8 mg

A grain is a unit of measurement typically used to weigh small objects or substances like medication. It is equal to approximately 64.8 mg. Option A is incorrect because it is too low and option B is incorrect because it is also too low. Option D is incorrect because it is too high. The best approximation for a grain is option C.