Question

Medrol 4 mg/kg is ordered for a child weighting 64.8 lb.

Medrol is available as 500 mg/4ml.

You will adminster _____ ml. Round to the nearest hundredth.

Answer 1

Given,

Ordered: Medrol 4 mg/kg

child weight = 64.8 lb.

Now, 1 lb = 0.454 kg

or, 64.8 lb = 0.454 × 64.8 Kg

= 29.42 Kg

So, weight of child(in kg) = 29.42 Kg

Overall dose for the child = ordered dose × weight of the child

= 4 mg/Kg × 29.42 Kg

= 117.68 mg

Medrol is available as 500 mg/4ml.

Using unitary method:-

500 mg Medrol present in 4 ml

1 mg Medrol present in = 4/500 ml

117.68 mg Medrol present in = (4/500) ×117.68 ml

=0.94 ml

Therefore, You will adminster 0.94 ml [Rounded to the nearest hundredth]