Classification
| Temperature Classification | |
|---|---|
|
|
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| Hypothermia | <35.0 °C (95.0 °F) |
| Normal | 36.5–37.5 °C (97.7–99.5 °F) |
| Fever | >37.5–38.3 °C (99.5–100.9 °F) |
| Hyperthermia | >37.5–38.3 °C (99.5–100.9 °F) |
| Hyperpyrexia | >40.0–41.5 °C (104–106.7 °F) |
| Note: The difference between fever and hyperthermia is the mechanism. | |
Hyperthermia is defined as a temperature greater than 37.5–38.3 °C (100–101 °F), depending on the reference used, that occurs without a change in the body's temperature set point.
The normal human body temperature in health can be as high as 37.7 °C (99.9 °F) in the late afternoon. Hyperthermia requires an elevation from the temperature that would otherwise be expected. Such elevations range from mild to extreme; body temperatures above 40 °C (104 °F) can be life-threatening.
Read more about this topic: Hyperthermia