PTCB
Comprehensive study of ptcb covering fundamental concepts and advanced applications.
Advanced Topics
Pharmacy Calculations and Dosages
Mastering Pharmacy Math
Accurate calculations are vital for preparing correct dosages, especially for pediatric and geriatric patients.
Common Calculation Types
- Converting units (mg to g, mL to L)
- Calculating doses based on weight
- Preparing solutions with specific concentrations
Calculation Example
If a doctor prescribes 250 mg of medication, and the available tablets are 125 mg each, you will need 2 tablets per dose.
Formula: \[ \text{Dose needed} = \frac{\text{Prescribed amount}}{\text{Tablet strength}} \]
Examples
Calculating how many mL of a liquid medication to dispense for a week's supply.
Determining the correct dose of amoxicillin for a child based on weight.
In a Nutshell
Pharmacy calculations ensure patients receive the correct medication doses.