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May 22, 2023 · 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; severe pain anywhere in the body
- hhp_info@health.harvard.edu
Mar 7, 2024 · If it is over 105 F (40.5 C), you need to rush to your nearest emergency room. You may need to act even sooner when infants, children, older adults, and immunocompromised people have a fever. It is important to know when a fever is too high because it can be dangerous to the central nervous system.
Jan 1, 2023 · People should call a doctor if their fever reaches 103° F and go to an emergency room if it reaches 105°. A fever is the immune system's response to an infection or invader. Most fevers drop after people take over-the-counter medications.
- Toni Golen, MD
- hhp_info@health.harvard.edu
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May 7, 2022 · Body temperatures vary slightly from person to person and at different times of day. The average temperature has traditionally been defined as 98.6 F (37 C). A temperature taken using a mouth thermometer (oral temperature) that's 100 F (37.8 C) or higher is generally considered to be a fever.
Sep 17, 2019 · A high grade fever happens when your body temperature is 103°F (39.4°C) or above. Most fevers usually go away by themselves after 1 to 3 days. A persistent or recurrent fever may last...
Feb 26, 2022 · Adults; Age Temperature What to do; 18 years and up: Up to 102 F (38.9 C) taken orally: Rest and drink plenty of fluids. Medication isn't needed. Call the doctor if the fever is accompanied by a severe headache, stiff neck, shortness of breath, or other unusual signs or symptoms. 18 years and up: Above 102 F (38.9 C) taken orally
Mar 31, 2020 · As a general rule, adults should consider seeking medical attention if their temperature reaches above 104 °F (40°C). Doctors consider this temperature to be a high-grade fever. However,...
