Order: morphine 2.5 mg IVP q4h
Child: 8 years, weight 30 kg
Have: morphine 1 mg/mL
Recommended dose: 0.05 to 0.5 mg/kg/q4h IVP
If the dose is safe, administer _____ mL based on the order. If the dose is not safe, enter zero mL
The given Morphine ordered = 2.5mg every fourth hourly.
Weight of the child = 30kg
Recommend dose is 0.05 to 0.5 mg/kg every four hourly.
The concentration of morphine = 1mg / mL
The maximum dose can be administered to the child = Maximum recommended dose x weight
0.5 mg x 30 kg = 15 mg / kg every four hourly.
The ordered dose is 2.5 mg every fourth hourly which is less than the maximum recommended dose 15 mg / kg every four hourly.
The dose can be calculated by using the following formula,
Desired dose( dose orderd) x quantity of drug in hand = dose to
Dose in hand. be administered
2.5 mg x 1 mL = 2.5mL
1mg
Thus 2.5mL to be administered every 4 hourly
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