Temperature Conversion in Pharmacy

Jun 26, 2025

Overview

This lecture covers how to convert between Celsius and Fahrenheit, emphasizing its importance for proper medication storage in pharmacy practice.

Importance of Temperature Conversions

  • Proper temperature storage maintains medication efficacy and safety.
  • Pharmacy professionals must interpret storage requirements in both Celsius and Fahrenheit.
  • Accurate temperature conversion ensures compliance with medication guidelines.

Temperature Conversion Formulas

  • To convert Celsius to Fahrenheit: multiply degrees Celsius by 9/5, then add 32.
  • To convert Fahrenheit to Celsius: subtract 32 from Fahrenheit, then multiply by 5/9.
  • Calculators are allowed and provided during certification exams.

Examples of Temperature Conversions

  • Insulin storage: 2°C to 8°C.
    • 2°C × 9/5 = 3.6; 3.6 + 32 = 35.6°F.
    • 8°C × 9/5 = 14.4; 14.4 + 32 = 46.4°F.
    • Insulin should be stored between 35.6°F and 46.4°F.
  • Amoxicillin suspension storage: 36°F to 46°F.
    • (36°F - 32) × 5/9 = 2.22°C.
    • (46°F - 32) × 5/9 = 7.78°C.
    • Store between 2.22°C and 7.78°C.
  • Pfizer-BioNTech COVID-19 vaccine storage: -70°C.
    • -70°C × 9/5 = -126; -126 + 32 = -94°F.
    • Store at -94°F.

Key Terms & Definitions

  • Efficacy — the ability of a medication to produce the desired effect.
  • Celsius (°C) — metric temperature scale where water freezes at 0° and boils at 100°.
  • Fahrenheit (°F) — temperature scale used in the US, where water freezes at 32° and boils at 212°.
  • Temperature Conversion — converting temperature readings between Celsius and Fahrenheit.

Action Items / Next Steps

  • Practice converting medication storage temperatures between Celsius and Fahrenheit.
  • Review medication guidelines to ensure proper temperature storage.
  • Prepare a calculator for practice and use during exams.