What are the 3 stages of fever?


Fever is a physiological response to an infection or illness that raises the body’s core temperature in an attempt to fight off the offending agent. There are generally three stages of fever:

  1. Onset or Prodrome Stage: This is the initial stage of fever, in which the body starts to recognize the presence of an invading agent and begins to mount a defense. Symptoms during this stage can include fatigue, headache, chills, and muscle aches.
  2. Hot or Acute Stage: In this stage, the body temperature rises and remains elevated, usually between 100.4 and 104 degrees Fahrenheit. The person may experience sweating, flushed skin, increased heart rate, and rapid breathing.
  3. Defervescence or Recovery Stage: This is the final stage of fever, in which the body gradually returns to its normal temperature range. Symptoms may include continued sweating, fatigue, and a general feeling of weakness, but these symptoms will typically improve over time as the body recovers.

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