Question

# Order: morphine 2.5 mg IVP q4h Child: 8 years, weight 30 kg Have: morphine 1 mg/mL...

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

2.5 mg x 1 mL = 2.5mL

1mg

Thus 2.5mL to be administered every 4 hourly

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