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MATH FORMULAS

All Math Formulas

QuestionAnswer
Calculation of Doses D/H x Q = Amount to be given
Powder Volume Powder volume = final volume - Diluent volume
Concentration and Dilution Initial volume(IV)xInitial Strength(IS)=Final Volume(FV)xFinal Strength(FS)HINTS: Initial strength must be larger than final strength; Initial volume must be less than final volume; Final volume minus initial volume equals amount of diluent to be added
Alligation Draw Tic tac toe; place highest concentration in upper left corner and lowest in bottem and the desired concentration in the middle; subtract upper left from middle and lower left from middle; total number of parts; parts of total x middle box
Specific Gravity Weight of substance/Weight of an equal volume of water
Time of infusion Volume of fluid(or amount of drug)/Rate of infusion
Rate of infusion Volume of fluid/Time of infusion
Infusion Rate Drops/min=(# of ml/hr)x(# of drops/ml)/60mins/hr
Young's Rule Age of Child(yrs)/Age of child(yrs)x12 x Adult dose
Clark's Rule Weight of child(lb)/150x Adult Dose
Fried's Rule Age in Months/150 X Adult Dose
BSA Square root of weight x square root of height/60m^2
Fahrenheit to Celsius C=F-32/1.8
Celsius to Fahrenheit F=(CX1.8)+32
Cost Purchase price + cost to dispense
Discount Purchase price X Discount Rate
Discounted Price Purchase price - Discount
Gros profit Selling price - Purchase price
Inventory turnover rate Annual dollar purchase/average inventory value
Markup Selling price - Purchase price
Net Profit Overall cost X desired percent profit
Overhead Sum of all expenses
Profit Selling price - overall cost
Created by: kpetitfils