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NCLEX Question of the Day
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A patient is ordered 0.5 mg of Lorazepam IV push for severe agitation. The vial on hand is labeled as 2 mg/mL. How many mL should you administer?
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2 mL
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Correct answer 0.25 mL
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0.5 mL
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1 mL
Rationale
To calculate the volume to administer, use the formula:
`"Volume" = "Ordered dose" / "Available concentration" = "0.5 mg" / "2 mg/mL" = "0.25 mL"`
Incorrect answers result from incorrect calculations or misunderstanding of dosage conversions.
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