Ear thermometers take a person's temperature using an infrared sensor. Learn more about their accuracy, how to use them, and alternative methods here.
Hyperpyrexia: What to know about a high fever. Medically reviewed by Carissa Stephens, R. Contents of this article: What is hyperpyrexia? Causes of hyperpyrexia What are the symptoms? Treatment and management How is hyperpyrexia diagnosed? What is hyperpyrexia? Share on Pinterest Hyperpyrexia can present as an adverse effect of anesthesia.
Causes of hyperpyrexia. What are the symptoms? Share on Pinterest Headaches can be a sign that a fever is becoming more severe. Treatment and management. How is hyperpyrexia diagnosed? Share on Pinterest A thermometer is used to diagnose hyperpyrexia. Emergency Medicine Primary Care. Latest news Scientists identify new cause of vascular injury in type 2 diabetes. Cellular stress, infarctions, necrosis, seizures and delirium are among the potential consequences of prolonged, severe fevers.
The receptor environment at the hypothalamus maintains limitations on high fevers. In the rare instances in which the hypothalamus itself malfunctions, the result is typically low body temperature, not elevated body temperature. Already a subscriber? Sign in. Thanks for reading Scientific American. Create your free account or Sign in to continue. See Subscription Options.
Go Paperless with Digital. Get smart. Sign up for our email newsletter. Fever also activates your body's immune system. Treatment depends on the cause of your fever. If the fever is very high, your health care provider may recommend taking an over-the-counter medicine such as acetaminophen or ibuprofen. Adults can also take aspirin, but children with fevers should not take aspirin.
It is also important to drink enough liquids, to prevent dehydration. The information on this site should not be used as a substitute for professional medical care or advice.
Contact a health care provider if you have questions about your health. Most seizures stop on their own. Take your child to the doctor as soon as possible after the seizure to determine the cause of the fever.
You may be able to prevent fevers by reducing exposure to infectious diseases. Here are some tips that can help:. Mayo Clinic does not endorse companies or products. Advertising revenue supports our not-for-profit mission. This content does not have an English version. This content does not have an Arabic version. Overview A fever is a temporary increase in your body temperature, often due to an illness.
Request an Appointment at Mayo Clinic. Share on: Facebook Twitter. Show references Goldman L, et al. Approach to fever or suspected infection in the normal host. In: Goldman-Cecil Medicine. Philadelphia, Pa. Accessed April 5, Merck Manual Professional Version. Fever in infants and children. Bennett JE, et al. Temperature regulation and the pathogenesis of fever.
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