A client with insomnia was put on Lunesta 2 mg orally before bedtime. The nurse was ordered to increase the dose by 250 mg weekly at 2- to 4-week intervals. How many milligrams more will the nurse give to increase the dose by 250 mg?
A) 0.25 mg
B) 0.025 mg
C) 2.50 mg
D) 25.0 mg
A
Feedback:
The nurse should increase the dose of Lunesta by 0.25 mg weekly. The nurse must be proficient in metric conversions for proper dosage calculation. To convert micrograms to milligrams, the nurse should move the decimal point three places to the left or divide by 1,000 . Thus, 250 mg divided by 1,000 becomes 0.25 and not 0.025, 2.50, or 25.0 mg.
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