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Health Careers Education
Pharmacological Calculations
Basics of pharmaceutical mathematics are covered to include reading, interpreting and solving calculation problems encountered in the preparation and distribution of drugs. Conversions of measurements, ratio and proportion, percentage, dilution and concentration, mill equivalents, units, intravenous flow rates, and solving dosage problems are included.
Lara Skaggs
A. Practice Fundamentals Of Mathematical Calculations

1. Express Arabic numbers as Roman numerals.
2. Express Roman numerals as Arabic numbers.
3. Identify the numerator and denominator in a fraction.
4. Add and subtract fractions.
5. Multiply and divide fractions.
6. Add and subtract decimals.
7. Multiply and divide decimals.
8. Convert fractions to decimals.
9. Convert decimals to fractions.
10. Define percent.
11. Convert percents to fractions.
12. Convert percents to decimals.
13. Convert fractions to percents.
14. Convert decimals to percents.
15. Define ratio.
16. Convert ratios to fractions.
17. Convert ratios to decimals.
18. Convert ratios to percents.
19. Convert fractions to ratios.
20. Convert decimals to ratios.
21. Convert percents to ratios.

B. Use Units And Measures For The Calculation Of Drug Dosages

1. Explain the apothecary system.
- Units of fluid measure
- Units of weight measure
- Perform fundamental computations and conversions within the system
2. Explain the Avoirdupois (household) measurement system.
- Units of fluid measure
- Units of weight measure
- Perform fundamental computations and conversions within the system
3. Explain the metric system.
-Units of length measure
-Units of weight measure
-Units of volume measure
-Express metric measure correctly using the naming convention of the metric system
-Perform fundamental computations and conversions within the system
4. Convertthe between the systems.
-Conversion of linear measurements
-Conversion of volume measurements
-Conversion of weight measurements

C. Use Ratio And Proportion

1. Define ratio and proportion.
2. Define means and extremes.
3. State a ratio-proportion to solve a given dose calculation problem.
4. Calculate problems for a missing term using ratio and proportion method.

D. Perform Pharmaceutical Calculations

1. Calculate doses for oral and liquid medications using ratio and proportion method.
-Calculations involving tablets
-Calculations involving capsules
-Calculations involving liquids
2. Calculate quantities to be administered when medication is ordered in fractional doses.
3. Calculate safe dosages for infant and children.
-Dosages based upon weight.
-Dosages based upon age.
-Dosages based upon formulas.
-Dosages based upon nomograms.
4. Calculate dosages for individual patients given the patient's weight and/or height and the recommended dose.
5. Perform calculations necessary for the infusion of I.V. medications.
-Calculate I.V. flow rates
-Calculate I.V. infusion and completion times
6. Calculate doses of parenteral medications already in solution.
7. Calculate doses from reconstituted medications.
8. Determine the best concentration strength for medications ordered when there are several directions for mixing.
9. Determine amount of insulin to be administered based upon labels.
10. Calculate dilutions and concentrations for solutions.
-Dilution and concentration of liquid solutions
-Dilution of stock solutions
-Dilution and concentration of solid solutions
-Alligation calculations

Pharmacy Technician - CTTC

Pharmacy Technician - PTCB
Pharmacy Technician Certification Board
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Career Majors That Sequence This Course
Career Cluster Pathway Career Major
Health Science Therapeutic Services Advanced Pharmacy Technician
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