Fever, also referred to as pyrexia, is defined as having a temperature above the normal range due to an increase in the body's temperature set point. There is not a single agreed-upon upper limit for normal temperature with sources using values between 37.2 and 38.3 °C (99.0 and 100.9 °F) in humans.
A fever is a temporary increase in your body temperature, often due to an illness. Having a fever is a sign that something out of the ordinary is going on in your body. For an adult, a fever may be uncomfortable, but usually isn't a cause for concern unless it reaches 103 F (39.4 C) or higher.
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Fever is generally not considered dangerous, but hyperthermia can cause dangerous rises in body temperature. This can be due to an extreme temperature associated with heat injury such as heat ...
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- Rick Ansorge
Fever is also known as hyperthermia, pyrexia, or elevated temperature. It describes a body temperature that’s higher than normal. Fever can affect children and adults.
- Krista O'connell
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May 05, 2020 · A person has a fever if their body temperature rises above the normal range of 98–100°F (36–37°C). It is a common sign of an infection.
- Yvette Brazier
A fever is usually diagnosed using a thermometer. A variety of different thermometers are available, including traditional glass and mercury ones used for oral or rectal temperature readings and more sophisticated electronic ones that can be inserted in the ear to quickly register the body's temperature.
The definition of fever is an elevation in body temperature or a high body temperature. Technically, any body temperature above the normal oral measurement of 98.6 degrees Fahrenheit (37 Celsius) or the normal rectal temperature of 99 F (37.2 C) is considered elevated.
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A fever is technically defined as a body temperature of 100.4° F or higher, according to the Centers for Disease Control and Prevention.This is true for both babies and adults. And a fever isn ...