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May 7, 2022 · Overview. 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. For infants, however, even a low fever may mean there's a serious infection.
Mar 7, 2023 · A fever for a child is generally 100.4°F (38ºC) or above orally. A fever for an adult is 99.5°F (37.5ºC) or above orally. There are numerous possible causes of a low grade fever, including infection, autoimmune conditions, and certain medications. A low grade fever does not always require treatment.
Your child has a fever if he or she: Has a rectal, ear or forehead (temporal artery) temperature of 100.4 F (38 C) or higher; Has an oral temperature of 100 F (37.8 C) or higher; Call your doctor if: Your child is younger than 3 months and has a fever; Seek medical care if a child of any age shows any of the following:
Fever in Children. What is a fever? A fever is defined by most healthcare provider as a temperature of 100.4°F (38°C) and higher when taken rectally. The body has several ways to maintain normal body temperature. The organs involved in helping with temperature regulation include the brain, skin, muscle, and blood vessels.
Pathophysiology |. Etiology |. Evaluation |. Testing for Acute Fever |. Testing for Chronic Fever |. Treatment |. Key Points. Normal body temperature varies from person to person and throughout the day. Normal body temperature is highest in children who are preschool aged.
A person with a temperature of 99.6°F to 100.3°F has a low-grade fever. High fevers may bring on seizures or confusion in children. It's not how high the temperature is, but how fast the temperature goes up that causes a seizure. A fever has other symptoms besides a higher-than-normal temperature.
Fever in Infants and Children. By Deborah M. Consolini, MD, Thomas Jefferson University Hospital. Reviewed/Revised Nov 2022 | Modified Sep 2023. VIEW PROFESSIONAL VERSION. Causes |. Evaluation |. Testing for Acute Fever |. Testing for Chronic Fever |. Treatment |. Key Points.
