Question

24. Augmentin is gien 30 mg/kg/day divided every 12 hours. You order Augmentin suspension for Carol's ear infection. Carol is 5 yrs old and weighs 88 lbs. You are treating her for 10 days. Augmentin 125-31.25 mg/5 ml. What is Carol's total daily dose in mg? vi o How many mls will you order of suspension? ip oLtn

Answer 1

ANSWER.

* Calculation of total daily dose in mg.

        Ordered dose = 30mg/kg/day.

        Weight of the patient = 88 lbs.

   Convert lbs to kg for calculation

            1 lbs = 0.454 kg

    So

       Weight of the patient = 88 * 0.454

                                         = 39.9 kg.

    Total daily dose in mg for this patient = 30 * 39.9

                                                                = 1197 mg/day.

* Calculation of ml will you order suspension.

         Formula

             Volume(ml) = Desired dose(D) / Dose in hand(H) * Quantity(Q)

     Here

        Desired dose(D) = 1197 mg

        Dose in hand(H) = 125 mg +31.25 mg (Amoxicillin + Clavulanic acid)

                                   = 156.25 mg.

             Quantity(Q) = 5 ml

As per above formula

       Volume(ml) of suspension required = D/H * Q

                                                                 = 1197/156.3 * 5

                                                                 = 7.7 * 5

                                                                 = 38.3

                                                                 = 38 ml per day.