If a dose is 1/4 grain, how many mg is it?

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Prepare for the Washington State Veterinary Medication Clerk Test. Engage with flashcards and multiple-choice questions, each offering hints and detailed explanations. Gear up for your examination!

Multiple Choice

If a dose is 1/4 grain, how many mg is it?

Explanation:
Grains are an old unit used in prescriptions, and for quick dosing many veterinary references use a simple conversion: 1 grain equals 60 mg. So, 1/4 of a grain is 60 mg divided by 4, which equals 15 mg. This rounding makes it easy to convert doses quickly. If you used the precise modern value of 1 grain as 64.8 mg, you’d get 16.2 mg, usually rounded to 16 mg, but the test here follows the 60 mg per grain convention.

Grains are an old unit used in prescriptions, and for quick dosing many veterinary references use a simple conversion: 1 grain equals 60 mg. So, 1/4 of a grain is 60 mg divided by 4, which equals 15 mg. This rounding makes it easy to convert doses quickly. If you used the precise modern value of 1 grain as 64.8 mg, you’d get 16.2 mg, usually rounded to 16 mg, but the test here follows the 60 mg per grain convention.

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