Question

I already finished this work but I would love to double-check my work. Thanks!
47 Calculate the mL per hr for this weight-based infusion. A provider orders a continuous heparin infusion to begin at 15 units per kg per hr. The patient weighs 93.8 kg. The pharmacy supplies heparin in a premixed bag of 40,000 units in 500 mL D5W. 17.6 ml per hc (round to the tenths) I5X 93.8kg = 40,000 units : 500ml : 1487 units :xml 703,500 n 1407 units 10.000 = 17.6 ml per hr 48. Calculate the weight-based infusion rate: A provider orders nitroprusside 3 mcg per kg per min. IV. The IV bag contains nitroprusside 50 mg in 250 mL D5W and the patient weighs 85 kg. (round to the tenths) 49. Calculate the weight-based infusion rate: A provider orders inamrinone 0.015 mg per kg per min. The IV bag contains inamrinone 200 mg in 500 mL solution. The patient weight is 149 pounds. (round to the tenths) 50. Calculate the infusion rate: The provider orders amiodarone 2 mg per min. The IV bag contains amiodarone 900 mg in D5W 500 mL. (round to tenths) 51. Calculate the mL per hour for this IV infusion: A provider orders a procainamide IV drip to begin at 5.5 mg per min. The IV bag contains procainamide 2 g in D5W 500 mL. _ (round to the tenths)

Answer 1

ANSWER.

47) Calculation of ml/hr.

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

     Calculation of volume(ml)

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

Here

      Ordered dose = 15 unit/kg/hr.

      Weight of the patient = 93.8 kg.

            Desired dose(D) = 15 * 93.8

                                        = 1407 unit.

            Dose in hand(H) = 40000 unit.

                  Quantity(Q) = 500 ml

As per above formula

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

                                                      = 1407/40000 * 500

                                                      = 0.035 * 500

                                                      = 17.5 ml.

                          Time(hr) = 1 hr.

        So

                  ml/hr = 17.5

                           = 18 ml/hr.

48) Calculation of infusion rate(ml/hr).

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

        Calculation of volume.

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

    Here

          Ordered dose = 3 mcg/kg/min.

           Weight of the patient = 85 kg.

      So

          Desired dose(D) = 3 * 85

                                      = 255 mcg.

          Dose in hand(H) = 50 mg.

   Convert mg to mcg

                 1 mg = 1000 mcg.

        Dose in hand(H) = 50 * 1000

                                    = 50000 mcg.

                 Quantity(Q) = 250 ml

As per above formula

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

                                                      = 255/50000 * 250

                                                      = 0.005 * 250

                                                      = 1.3 ml.

                        Time = 1 min.

        Convert ml/min to ml/hr by multiply with 60

                              ml/hr = 1.25 * 60

                                        = 75 ml/hr.

49) Calculation of infusion rate(ml/hr).

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

      Calculation of volume(ml).

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

    Here

          Ordered dose = 0.015 mg/kg/min.

          Patient weight = 149 pound.

     Convert pound to kg

              1 pound = 0.454 kg.

        Patient weight = 149 * 0.454

                                = 67.6 kg.

        Desired dose(D) = 0.015 * 67.6

                                    = 1.01 mg.

        Dose in hand(H) = 200 mg.

              Quantity(Q) = 500 ml.

As per above formula

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

                                                     = 1.01 / 200 * 500

                                                     = 0.005 * 200

                                                     = 1 ml

                                  Time = 1 min.

    Convert ml/min to ml/hr by multiply with 60

                    ml/hr = 1 * 60

                             = 60 ml/hr.

50) Calculation of ml/hr.

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

         Calculation of volume.

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

      Here

           Desired dose(D) = 2 mg.

           Dose in hand(H) = 900 mg.

                Quantity(Q) = 500 ml.

As per above formula

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

                                                      = 2/900 * 500

                                                      = 0.002 * 500

                                                      = 1 ml.

                               Time = 1 min.

    Convert ml/min to ml/hr by multiply with 60

                ml/hr = 1 * 60

                          = 60 ml/hr.

51) Calculation of ml/hr.

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

      Calculation of volume.

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

   Here

      Desired dose(D) = 5.5 mg.

      Dose in hand(H) = 2000 mg (2g).

           Quantity(Q) = 500 ml

As per above formula

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

                                                    = 5.5/2000 * 500

                                                    = 0.003 * 500

                                                    = 1.5 ml

                            Time = 1min.

   Convert ml/min to ml/hr by multiply with 60

                   ml/hr = 1.5 * 60

                            = 90 ml/hr.

52) Calculation of infusion rate.

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

      Calculation of volume.

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

   Here

           Ordered dose = 2 mcg/kg/min to 10 mcg/kg/min.

           Weight of the patient = 88 kg.

       Desired dose(D)for this patient = 2 * 88 to 10 * 88

                                                          = 176 mcg to 880 mcg.

              Dose in hand(H) = 250 mg.

   Convert 250 mg to mcg

              1 mg = 1000 mcg.

    So

            Dose in hand(H) = 250 * 1000

                                        = 250000 mcg.

                     Quantity(Q) = 250 ml

As per above formula

    Volume(ml) of drug required = 176/250000 * 250 to 880/250000 * 250

                                                  = 0.0007 * 250 to 0.004 * 250

                                                  = 0.18 ml to 1ml

                             Time = 1 min

     Convert ml/min to ml/hr by multiply with 60

               ml/hr = 0.18 * 60 to 1 * 60

                         = 10.8 ml to 60 ml

                         = 11 ml to 60 ml.

53) Recommended minimum and maximum dose for the patient.

               Recommended dose = 4 to 5 mcg/kg/day.

               Weight of the patient = 125 lbs.

    Convert lbs to kg for calculation

              1 lbs = 0.454 kg

       Weight of the patient = 125 * 0.454

                                         = 56.8 kg.

Minimum dose required for the patient = 4 * 56.8

                                                               = 227.2

                                                               = 227 mcg per day.

Maximum dose required for this patient = 5 * 56.8

                                                                = 284 mcg per day.

54) Calculation of ml/hr.

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

       Calculation of volume.

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

   Here

        Desired dose(D) = 1400 units.

        Dose in hand(H) = 30000 units.

             Quantity(Q) = 500 ml.

As per above formula

      Volume of drug required = D/H * Q

                                             = 1400/30000 * 500

                                             = 0.046 * 500

                                             = 23 ml.

                       Time(hr) = 1hr.

         So

                       ml/hr = 23 ml/hr.

55) Calculation of volume(ml) of drug required.

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

     Here

          Desired dose(D) = 75 mg.

          Dose in hand(H) = 50 mg.

             Quantity(Q) = 1 ml.

As per above formula

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

                                                     = 75/50 * 1

                                                     = 1.5 ml.