Which of the following measures is equivalent to 1 grain?
a. 15 milligrams c. 45 milligrams
b. 30 milligrams d. 60 milligrams
ANS: D
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A Incorrect: This equals 1/4 grain.
B Incorrect: This equals 1/2 grain.
C Incorrect: This equals 3/4 grain.
D Correct: 60 mg equal 1 grain.
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