Formulas

  • Body Surface Area - Height (cm) Weight (kg) 3600

    - Height (in) Weight (lb) 3131

  • Fahrenheit to Celsius - F = 9/5C+32

  • Celsius to Fahrenheit - C = (F-32)x5/9 

  • Desired Dose - dosing rate dosing interval = 28 mg/h x 0.9612 hours=350 mg

  • Standard Deviation - s=(x-x)2n-1

  • Drops to milliliters - 0.0667

  • How do you find the variance?

    1. find the mean

    2. square all the variables

    3. divide by the total amount of variables

    4. subtract mean squared

    5. square root the total

  • Clark’s rule for child’s dosing - (weight in lbs/150)adult dose or (weight in kg/68)adult dose

  • Frieds rule for infant dose - (age in months/150)adult dose

  • Young’s rule for child’s dosing - age in years / (age in years+12)adult dose = childs dose

  • Ratio for strength of solutions - amount of drug / amount of solution

  • Percent of strength by volume - (volume of solute/volumn of solution)100

  • Percent strength by weight (mass) - mass of solute/volume of solution100

  • Amount of solute/amount of first solution - amount of solute/amount of second solution