Fever in Adults (cont.)
IN THIS ARTICLE
When Should Someone Seek Medical Care for a Fever?
When to Call or See a Doctor (or When to Worry About a Fever)
A fever has many possible causes. Most commonly, a fever is part of a viral infection that will go away on its own. However, there are some reasons to be concerned or worried about a fever; do not hesitate to call or see a doctor for any high fevers; the following is a "when to be worried" list that lists some symptoms and signs that indicate that people should seek medical care.
When to Go to the Hospital
Certain illnesses that occur with a fever can be life-threatening. Under these conditions, the person should go immediately to a hospital's emergency department:
Medically Reviewed by a Doctor on 1/15/2016
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Fever of unknown origin (FUO) was defined in 1961 by Petersdorf and Beeson as the following: (1) a temperature greater than 38.3°C (101°F) on several occasions, (2) more than 3 weeks' duration of illness, and (3) failure to reach a diagnosis despite one week of inpatient investigation.