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A nurse is preparing to administer cefuroxime 750 mg by intermittent IV bolus every 8 hr. Available is cefuroxime injection 7

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* Calculation of ml/hr.

        ml/hr = Volume(ml) /Time(hr).

   Calculation of volume(ml).

       Formula = Desired dose/Dose in hand * Quantity.

Here

       Desired dose(D) = 750 mg.

       Dose in hand (H) = 750 mg.

           Quantity(Q) = 50 ml.

As per above formula

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

                                                    = 750/750 * 50

                                                    = 1 * 50

                                                    = 50 ml.

                         Time(hr) = 0.25 hr (15 min).

            ml/hr = 50 / 0.25

                     = 200 ml/hr.

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