Morphine 20 mg po BID. How many ml‘s will the nurse administer? How many mls is it?
given: Morphine 40 mg/5ml
If available dose is 40mg/5 ml
Ordered dose is 20mg po bid
So as per available dose , 40mg/5ml means that
40 mg of drug is equal to 5 ml
Then 20 mg will be equal to = 5×20/40= 2.5ml
Thus nurse will administer 2.5 ml
To calculate total volume in ml given in a day
If one dose is 2.5 ml and it should be given twice a day then total volume is =2.5×2=5ml
So total volume administered in a day is 5 ml
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