MD writes an order for Ibuprofen 3 mg/kg by mouth every 6 hours for pain for a child. The child weighs 73 lb. Pharmacy dispenses you with 50 mg/2 ml. How many ml will you administer per dose?

Respuesta :

Answer:

I would administer 4 ml per dose.

Explanation:

Step 1: Determine mg as per child's weight

Use the expression below to determine the amount in mg per child weight;

Amount in mg=order per kg×weight of the child in kg

where;

order per kg=3 mg/kg

weight of child=73 lb

Convert weight of child from pounds to kilograms;

1 lb=0.454 kg

73 lb to kg=73×0.454=33.142 kg

weight of the child in kg=33.142

replacing;

Amount in mg=3×33.142=99.426 mg

Step 2: Determine amount to be administered per ml

Amount per ml=Amount in mg÷dose per ml

where;

Amount in mg=99.426

dose per ml=50 mg/2 ml=25 mg/ml

replacing;

Amount per ml=99.426/25

Amount per ml=3.977 ml=4 ml

I would administer 4 ml per dose.

The number of ml that will be administered per dose will be 3.9 ml/dose.

Based on the information given, we will calculate the weight of the child in kg which will be:

= 73 × 0.454 = 33.142

The amount in ml will now be:

= 3 × 33.142 = 99.426

Therefore, the number of ml that will be administered per dose will be:

= 99.426 / 25

= 3.9 ml/dose

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