Question

Tubing drop factor - 15 gitml 16. Doctor's order: Bactrim 400 mg IV osh Available: Bactrim 400 mg/5 ml Set and solution: Buretrol with a drop factor of 60 ml and DW 500 ml Instructions: Dilute drug in 125 ml of 0.9 NS and infuse over 10 min Infat gitminute 17. Doctor's onder Aminophylline 150 mg IVP in 100 mL Dsw to infuse in 60 minutes Available: Aminophylline 250 mg per 10 ml Drop factor 60 per ml a. How many ml should be added to the 100 ml DSW? b. What should the flow rate he? ( min) Doctor's onder: Anpicillin 150 mg IM now Available Ampicillin 500 mg powder in a multi-dose vial Reconstitution instructions: Add 18 ml of sterile water to yield 250 mg per ml Give 19. The physician has ordered Morphine sulfate 100 mg in 250 ml to infuse at 3.2 mg/hour a pump. How many hour thould be administered? 20. The physican las ordered Lidocaine 2 grams in 500 ml of DSW to infuse at 60 ml hout via a pump. How many met will infuse in i mitte? 21 Doctor's order Kantrex Injection 15 mekday IM in four divided doses to an adult weighing 159 lbs lib Label: Kantrex ikanacin sulfate) Injection is per3 int. 0.6 ml 0.8 ml 71 patient has alway catheter following porte surgery. At the beginning of the shift there is a credit of 500 ml of irrigation Duid in the has

Answer 1

ANSWER.

* Calculation of gtt/min.

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

   Here

         Volume(ml) = 125 ml.

         Time(min) = 90 min.

         Drop factor = 60 gtt/ml.

    As per above formula

           Flow rate (gtt/min) = 125/90 * 60

                                          = 1.38 * 60

                                          = 82.8 gtt/min.

17) a) Calculation of volume(ml) of drug added to D5W.

               Formula = Desired dose/Dose in hand * Quantity.

          Here

             Desired dose(D) = 150 mg.

             Dose in hand (H) = 250 mg.

                 Quantity(Q) = 10 ml

    As per above formula

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

                                                      = 150/250 * 10

                                                      = 0.6 * 10

                                                      = 6 ml.

b) Flow rate (gtt/min).

         Formula

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

       Here

          Volume(ml) = 100 ml.

          Time(min) = 60 min.

          Drop factor(gtt/ml) = 60 gtt/ml.

   As per above formula

          Flow rate(gtt/ml) = 100/60 * 60

                                     = 1.66 * 10

                                     = 16.6 gtt/min.

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

          Formula = Desired dose/Dose in hand * Quantity.

       Here

          Desired dose(D) = 150 mg.

          Dose in hand (H) = 250 mg.

              Quantity(Q) = 1 ml.

   As per above formula

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

                                                      = 150/250 * 1

                                                      = 0.6 ml.

19) Calculation of ml/hr.

           Formula

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

           Calculation of volume

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

          Here

              Desired dose(D) = 3.2 mg.

              Dose in hand (H) = 100 mg.

                   Quantity(Q) = 250 ml

    As per above formula

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

                                                   = 3.2 / 100 * 250

                                                   = 0.032 * 250

                                                   = 8 ml.

                           Time(hr) = 1 hr.

            ml/hr = 8 ml/hr.

20) Calculation of mg/min.

             formula

                 mg/min = mg/ml * ml/min * hr/min.

         Here

              mg/ml = 2000 /500

              ml/hr = 60/1

              hr/min = 1/60

    As per above formula

             mg/min = 2000/500 * 60/1 * 1/60

                          = 4 * 60 * 1/60

                          = 240 * 1/60

                          = 4 mg/min.

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

           Formula = Desired dose/Dose in hand * Quantity.

       Here

          Ordered dose = 15 mg/kg/day.

          Weight of the patient = 159 lbs.

     Convert lbs to kg for calculation

                   1 lbs = 0.454 kg

          Weight of the patient in kg = 72.12 kg.

     So

           Desired dose(D) = 15 * 72.12

                                       = 1081.8 mg.

           Dose in hand (H) = 1000 mg (1g)

               Quantity(Q) = 3 ml

    As per above formula

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

                                                          = 1081.8 / 1000 * 3

                                                          = 1.08 * 3

                                                          = 3.24 ml/day.

         Volume(ml)of drug required per dose = 3.24 / 4 (4 divided doses)

                                                            C = 0.8 ml.