Drug Calculations (see detailed description)?

Order: Morphine 2.4mg hs prn
Supply: Morphine 4mg/1ml
Dosage: ?
Please provide a detailed explanation for how I can find the dosage (please state formula if one is used). Thanks! :)
Answers:
hs = at bedtime
prn = as needed


__4 mg__ = __2.4 mg__
***1 ml***********x******

2.4 x 1 divided by 4 = 0.6 ml

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