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TABLETSFormula method Required dose= No.of tablets to be givenRequired dose:Required tabletStock dose:Stock tablet Required doseRequired tablet Stock doseStock tabletDRIP RATES Total volumemL Total hoursDrops per minute (dpm) Macro dripVolumeDrop factor (20) Time (hr)60 min Micro dripVolumeDrop factor (60) Time (hr)60 min Formula methodRatio method = No.of tablets to be given150mg:300mg:1 tablet 150mg=×tablet 300mg1 tablet=0.5 tablet APPENDIX D drug calculations EXAMPLEA client is ordered an intravenous infusion of 1000 mL normal saline to run over 24 hours, using a macro drip. Calculate the drip rate. 100020 =13.8=14 dpmMEDICATION DOSAGESFormula method Required doseStock volume =Volume to be givenRequired dose:Required volumeStock dose:Stock volume Required doseRequired volume Stock doseStock volume (i)You are required to give 6 mg morphine. In your stock ampoule there is 15 mg per 1 mL.Formula methodRatio method (ii)You are required to give 30 units insulin. In your stock vial there is 100 units per 1 mL.Formula methodRatio method ×1 mL 15 mg1=0.4 mL6 mg:15 mg:1 mL 6 mg=×mL 15 mg1 mL=0.4 mL ×1 mL 100 units1=0.3 mL30 units:100 units:1 mL 30 units=×mL 100 units1 mL=0.3 mL CALCULATION OF VOLUME OR DOSE PER HOUR FOR VOLUMETRIC PUMPSFormula method Required dose (per hour)Stock volume =Volume to be given per hourRequired dose (per hour):Required volume (per hour)Stock dose:Stock volume Required doseRequired volume Stock doseStock volumeCALCULATION OF VOLUME PER HOUR OR DOSE IN Formula method Stock dose (mg)1000(convert mg to ml/hr = Required dose ( Stock volume (mL)60(convert hr to min)Required dose (g per minute):Required volume (mL per hour)Stock dose (mg):Stock volume (mL)(iii)You are required to give 12.5 mg morphine intravenously. In your stock ampoule there isFormula methodRatio method Your client is ordered 1 mg/hr morphine through the volumetric pump. You have made up anFormula methodRatio method ×1 mL 10 mg1=1.25 mL12.5 mg:10 mg:1 mL 12.5 mg=×mL 10 mg1 mL=1.25 mL1 mg/hr:50 mg:500 mL 1 mg/hr=×mL/hr 50 mg500 mL=10 mL/hr 1 mg/hr×500 mL 50 mg1=10 mL/hr Required dose (g per minute):Required volume (mL per hour/60)1000):Stock volume (mL) Required dose (g per minute)Required volume (mL per hour/60) 1000)Stock volume (mL)Formula methodRatio method ×1000 100604=33.3 g/min:4 mL/hr/601000:100 mL × µg/min=4 mL/hr/60 1000100 mL=33.3 CALCULATION OF DOSE IN Formula method Stock dose (mg)1000mL/hr= Required dose ( Stock volume (mL)Client weight (kg)Required dose (g per minute):Required volume (mL per hour/60)1000):Stock volume (mL) Required dose (g per minute)Required volume (mL per hour/60) 1000)Stock volume (mL)Required dose for 1 kg (g/min):1 kgRequired dose for client (g/min):Clients weight (kg) Required dose for 1 kg ( Required dose for client (g/min)Clients weight (kg) Your 70 kg client is currently receiving an infusion of dopamine at 10 mL/hr. Your medicationFormula methodRatio method2501000102 500 000(1) First calculate the dose for the clients weight.g/min:10 mL/hr/60=5.9 g/kg/min of250 mg 1000:100 mLg/min10 mL/hr/60administered250 mg =416.7 (2) Now calculate the dose for 1 kg.g/kg/min:1 kgg/min:70 kgg/kg/min1 kgg/min=70 kg=5.9 CALCULATION OF DOSE REQUIRED FOR A CHILD USING BODYWEIGHTFormula methodChilds weight (kg) Unit dose (per kg) = Required doseA 5-year-old child weighing 18 kg is ordered penicillin G (benzyl penicillin) to be given IV 4G for a severe infection is 100000 u (60 mg)/kg/dose every 4 hours. What dose would you