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- When your body temperature goes above 100.4 degrees Fahrenheit (37.5 degrees Celsius), you have a fever — also called pyrexia. So, a very high fever is called hyperpyrexia.
www.webmd.com/a-to-z-guides/what-is-hyperpyrexiaWhat is Hyperpyrexia? What are its causes, symptoms, and ...
May 22, 2023 · Moderate-grade: 100.6 to 102.2 F (38.1 to 39.0 C) High-grade: 102.4 to 105.8 F (39.1 to 41 C). When to worry about fever. If you have a fever over 104°F (40°C), you should call your doctor. Seek medical help right away if you have a fever along with any of these symptoms: seizure; loss of consciousness; confusion; stiff neck; trouble breathing
- hhp_info@health.harvard.edu
Mar 7, 2024 · A fever is considered high when the temperature is above 103 F in adults. In young children and others, a high fever may be defined differently.
Aug 4, 2024 · Here's what you need to know about fever in adults: What the possible causes are, temperature ranges and when to be concerned, how to make sure the temperature reading is accurate, when you need to see a doctor, stages of fever and how to treat a fever.
May 4, 2018 · Hyperpyrexia, or a very high fever, can indicate an infection or some other serious condition. It's a medical emergency, so seek medical care immediately if you or your child has a fever higher...
Jul 7, 2023 · Hyperpyrexia — or very high fever — is a life-threatening emergency that needs immediate medical attention. Find out what it is, what causes it, and how it can be diagnosed and treated.
Sep 17, 2019 · Call your doctor immediately if you have a high grade fever — when your temperature is 103°F (39.4°C) or higher. Get medical help if you have any kind of fever for more than three days.
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May 7, 2022 · A fever is a temporary rise in body temperature. It's one part of an overall response from the body's immune system. A fever is usually caused by an infection. For most children and adults, a fever may be uncomfortable. But it usually isn't a cause for concern.
