Fever

Here is free textual content related to Fever to utilize on your web site in accordance wi th the GNU license.

Fever, also known as pyrexia, is a medical symptom which describes an increase in temperature to levels which are above normal (37 degrees Celsius, 98.6 degrees Fahrenheit). An adaptive mechanism, fever is the body's reaction to pathogens; it attempts to kill them by overheating them. Most fevers are caused by infections and almost all infectious diseases cause fever. When a patient has or is suspected of having a fever, that person's body temperature is measured using a thermometer.

Mechanism

Fever usually occurs in response to pyrogens (the most prominent one of which is interleukin 1) which are released from inflammatory cells. These pyrogens act on the hypothalamus (the body's thermostat), resetting it to a higher temperature and in doing so invoking the body's temperature raising mechanisms and raising the body temperature to a level above normal. The body has a number of techniques to raise its temperature.

* Shivering, which involves physical movement that produces heat.
* Vasoconstriction, which entails the constriction of blood flow beneath the skin and thus reduces the amount of heat lost from the body.

The body's temperature is maintained at that level until the effects of the pyrogens wear off.
[edit]

Types

Pyrexia can be classed as low grade (38 to 39 °C), moderate (39 to 40 °C), or high grade (more than 40 °C) depending on how much the body temperature has deviated from normal.

Fever may be of benefit and is part of the body's response to a disease; however, if the fever goes above 42 °C then it may cause significant tissue damage and would most certainly be harmful. This is termed hyperpyrexia.

Temperature normally fluctuates over the day, and the same applies to fever. If this characteristic pattern is lost, the raised body temperature may be due to hyperthermia, a more dangerous disorder. Hyperthermia is commonly caused by overheating or sunstroke.
[edit]

Treatment

Drugs that reduce fever are known as antipyretics. Common antipyretics are acetaminophen, also called paracetamol, and NSAIDs such as ibuprofen. A popular household remedy is soaking a cloth in cold water and placing it on the patient's forehead.

Sometimes, for health reasons, mild fevers are intentionally induced. Cancer cells, for example, are known to die at lower temperatures than normal body cells, and therefore can sometimes be fought with fevers. [1]

Did you ever wonder what words are being searched for in relation to your web site. No you do not have to wonder, and it is entirely free. In addition to the high quality content, we deliver the top related searches for each area. The top searches are compiled from a sampling of several major search engines.

This content was brought to you by Wikipedia, and it must be used in accordance with the GNU.

Each month we publish the top related searches for every area of webmaster content so that you will be able to choose the right words when conducting an internet marketing campaign. If you choose to use a pay-per-click program, then use Google Adsense .

Here are the top internet searches related to Fever :

Go back to top of Fever page