Question

7. The healthcare provider ordered Ampicillin 10 mg/kg/day po daily. Available is ampicillin 125 me/ 5ml. Patients weight is 55 lbs. How many tsp should the nurse administer? 8. The healthcare provider prescribed cleocin 175 mg po qid. The patient weight is 48 lbs. Label states cleocin 125 mg/5 ml. The recommended dose is 10 mg - 30 mg/kg/day in 4 divided doses. a. What is the safe dose range for the patient? b. What should the nurse administer 9. The health care provider order IV D5%W 500 ml in 3 hours. The tubing is 15 gtts/mL. a. How many mL/Hr b. How many gtts/min 10. The healthcare provider ordered IV 1000 ml in 10 hours. The tubing is a 10 gtts/mL. a. How many ml/hr b. How many gtts/min

please help with these calculations

Answer 1

ANSWER.

7) Calculation of tsp of drug required.

      Formula

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

   Here

         Ordered dose = 10 mg/kg/day.

          Weight of the patient = 55 lbs.

    Convert lbs to kg for calculation

                1 lbs = 0.454 kg

         Weight of the patient = 55 * 0.454

                                           = 24.97 kg.

               Desired dose (D) = 10 * 24.97

                                            = 249.7 mg.

               Dose in hand(H) = 125 mg.

                       Quantity(Q) = 5ml.

As per above formula

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

                                                       = 249.7/125 * 5

                                                       = 1.99 * 5

                                                       = 9.9

                                                       = 10 ml.

                    1 teaspoon = 5 ml.

      So

          Teaspoon of drug required = 10/5

                                                     = 2 teaspoon.

8) a) Calculation of safe dose range for this patient.

               Ordered dose = 175 mg qid.

               Recommended dose = 10 - 30 mg/kg/day.

               Weight of the patient = 48 lbs

     Convert lbs to kg for calculation

             1 lbs = 0.454 kg

   So

        Weight of the patient = 48 * 0.454

                                          = 21.79 kg.

       Safe dose range for this patient = 10 * 21.79 to 30 * 21.79

                                                           = 217.9 mg to 653.7 mg per day.

b) Calculation of volume of drug required for administration.

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

     Here

          Desired dose(D) = 175 mg

          Dose in hand(H) = 125 mg

             Quantity(Q) = 5 ml

As per above formula

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

                                                     = 175/125 * 5

                                                     = 1.4 * 5

                                                     = 7 ml qid.

9) a) Calculation of ml/hr.

               ml/hr = Volume(ml) / Time(hr).

       Here

            Volume(ml) = 500 ml.

             Time(hr) = 3 hrs.

      As per above formula

                 ml/hr = 500/3

                           = 166.7 ml/hr.

b) Calculation of gtt/min.

           gtt/min = Volume(ml) / Time(min) * Drop factor.

      Here

           Volume(ml) = 500 ml

            Time(min) = 180 min (3hr).

            Drop factor = 15 gtts/ml.

As per above formula

              gtt/min = 500/180 * 15

                          = 2.77 * 15

                          = 41.5 gtt/min.

10) a) Calculation of ml/hr.

            ml/hr = Volume(ml) / Time(hr).

        Here

           Volume(ml) = 1000 ml.

            Time(hr) = 10 hr.

As per above formula

            ml/hr = 1000/10

                      = 100 ml/hr.

b) Calculation of gtt/min.

           gtt/min = Volume(ml) / Time(min) * Drop factor(gtt/ml)

    Here

          Volume(ml) = 1000 ml.

           Time(min) = 600 min.

           Drop factor = 10 gtts/ml.

As per above formula

          gtt/min = 1000/600 * 10

                      = 1.67 * 10

                      = 16.7 gtt/min.