Which of the following is a correct pair of temperature scales for fever determination as described?

Which of the following is a correct pair of temperature scales for fever determination as described?

• A. Celsius and Fahrenheit
• B. Celsius and Kelvin
• C. Fahrenheit and Kelvin
• D. Rankine and Celsius

Answer: (A)

Fever is described using two scales that clinicians can readily relate to, depending on where they practice. Celsius and Fahrenheit are the standard pair for fever determination because many places use Celsius, while others—like the United States—report temperatures in Fahrenheit. This dual usage keeps communication clear across settings. A common fever threshold is 38°C, which is equivalent to 100.4°F, and knowing both scales lets you interpret the same value in either system. The scales are directly convertible (F = C × 9/5 + 32), so switching between them is straightforward. Kelvin and Rankine are scientific/absolute scales; they’re not used for routine fever definitions in clinical care, which is why they aren’t the correct pair.

Fever is described using two scales that clinicians can readily relate to, depending on where they practice. Celsius and Fahrenheit are the standard pair for fever determination because many places use Celsius, while others—like the United States—report temperatures in Fahrenheit. This dual usage keeps communication clear across settings. A common fever threshold is 38°C, which is equivalent to 100.4°F, and knowing both scales lets you interpret the same value in either system. The scales are directly convertible (F = C × 9/5 + 32), so switching between them is straightforward. Kelvin and Rankine are scientific/absolute scales; they’re not used for routine fever definitions in clinical care, which is why they aren’t the correct pair.