Which statement about fever threshold is correct?

Which statement about fever threshold is correct?

• A. Fever is defined as 37 C or higher.
• B. Fever is defined as 39 C or higher.
• C. Fever is defined as 40 C or higher.
• D. Fever is defined as 38 C or higher.

Answer: (D)

Fever threshold is the temperature level at which we define fever. In most clinical settings, fever is defined as a body temperature of 38.0°C (100.4°F) or higher, regardless of the measurement route (oral, tympanic, or rectal). This makes 38°C or higher the standard threshold. A temperature of 37°C is considered normal variation, while 39°C or 40°C describe higher fevers rather than the threshold for identifying fever. Keep in mind that measurement site can slightly affect exact numbers, but 38°C is the commonly used cut-off.

Fever threshold is the temperature level at which we define fever. In most clinical settings, fever is defined as a body temperature of 38.0°C (100.4°F) or higher, regardless of the measurement route (oral, tympanic, or rectal). This makes 38°C or higher the standard threshold. A temperature of 37°C is considered normal variation, while 39°C or 40°C describe higher fevers rather than the threshold for identifying fever. Keep in mind that measurement site can slightly affect exact numbers, but 38°C is the commonly used cut-off.