In: Nursing
A patient that weights 60 lbs is ordered for Gabapentin (Neurontin) 10mg/kg/day PO in three divided doses for seizures. The pharmacy provides Neurontin with a dosage strength of 250 mg/mL. How many mL will be administered for each dose? Round to the nearest hundreth of a mL. _______ mL/dose
A patient that weights 60 lbs is ordered for Gabapentin (Neurontin) 10mg/kg/day PO in three divided doses for seizures. The pharmacy provides Neurontin with a dosage strength of 250 mg/mL. How many mL will be administered for each dose? Round to the nearest hundreth of a mL. _______ mL/dose
weight of patient 60 lbs
Ordered medicine is Gabapentin (Neurontin) 10mg/kg/day PO in three divided doses
pharmacy provides Neurontin with a dosage strength of 250 mg/mL.
Step 1 - converting pounds in kg as dose of drug is in mg/kg
1lbs = 0.45 kg
so 60 lbs = 60 x 0.45 = 27kg
step 2 - calculating dose per day
dose is 10 mg/kg/day
patient weight is 27 kg
so total dose required per day is 27 x 10 = 270mg/day devided in three dose = 270/3 = 90mg per dose
so patient need to take 90 mg three times a day
step 3 - calculating mg in ml
dosage strength of 250 mg/mL.
so that means 1ml = 250mg
we need 90mg
so we use cross multiplicationb method as shown below
250mg = 1ml
90mg = ?
= 90 x 1 / 250
=0.36ml
SO ANS IS 0.36 OR 0.4 (to round of) per dose