PTCB Certified Pharmacy Technician (PTCE)MedicationsHard
A pharmacy technician is preparing a non-sterile compound that requires a specific temperature for mixing. The master formulation record states, 'Mix ingredients at 40°C'. Which of the following is the equivalent temperature in Fahrenheit?
- A86°F
- B98.6°F
- C112°F
- D104°F
Show answer & explanationAnswer & explanation
Correct answer: D. 104°F
To convert Celsius to Fahrenheit, use the formula: °F = (°C × 9/5) + 32. So, (40°C × 9/5) + 32 = (40 × 1.8) + 32 = 72 + 32 = 104°F.
Why the other options are wrong
- A. Incorrect calculation; 30°C is 86°F.
- B. This is human body temperature, not 40°C.
- C. Incorrect calculation; 44.4°C is roughly 112°F.
Temperature Conversion (Celsius to Fahrenheit)
The formula to convert temperature from Celsius (°C) to Fahrenheit (°F) is: °F = (°C × 9/5) + 32, or equivalently, °F = (°C × 1.8) + 32.
- Boiling point of water: 100°C = 212°F.
- Freezing point of water: 0°C = 32°F.
- Essential for accurate compounding and storage conditions.
Memory trick: Celsius to Fahrenheit: Multiply by 1.8, then add 32.