Friday, December 28, 2007

FEVER

Also called: Pyrexia

A fever is a body temperature that is higher than normal. It is not an illness. It is part of your body's defense against infection. Most bacteria and viruses that cause infections do well at the body's normal temperature (98.6 F). A slight fever can make it harder for them to survive. Fever also activates your body's immune system.

Infections cause most fevers. There can be many other causes, including

1.Medicines
2.Heat exhaustion
3.Cancers
4.Autoimmune diseases

Treatment depends on the cause of your fever. Your health care provider may recommend using over-the-counter medicines such as acetaminophen or ibuprofen to lower a very high fever. Adults can also take aspirin, but children with fevers should not take aspirin. It is also important to drink enough liquids to prevent dehydration.

Types of Fever

Continued Fever - the temperature remains above normal for long period of time.

Intermittent Fever - type of fever wherein body temperature periodically rises and falls.

Relapsing Fever - type that recurs sometimes a number of times, several days after the temperature has returned to normal.

Stages of Fever:

In the first stage of fever also known as the invasion period the patient will experience chill, loss of appetite, and headache. Chill occurs, occurs because of the tightening of blood vessels near the skin.

In the next stage, the body is hot and flushed, the skin dry, and the pulse and respiration are rapid. The patient will experience thirst and he/she will feel restless. In high fever, delirium and convulsions may occur.

In the final stage before returning to normal, the temperature falls, breathing and pulse slow down, and the skin becomes moist. The patient often sweats.

What are the signs and symptoms of a Fever?

There are different symptoms of a fever. The symptoms of a fever depends on what is causing it. Sometimes a fever can cause a chill. A chill occurs because when the brain raises the body's "thermostat," the body responds by shivering to raise the temperature. Shivering produces heat in the body. Once the temperature goes up, the person often feels warm. When the fever goes away, the person may start to sweat.

What causes a Fever?

Fever can be caused by many conditions. Some conditions that cause them are: infections such as strep throat, pneumonia, flu and chickenpox, tissue injuries,silicosis, tumors or cancer diseases that cause inflammation, rheumatoid arthritis, medications, and being in a hot environment for too long.

Risks during a Fever?

The main risk of mild or moderate fevers is dehydration. When a person has a fever, they need more fluids than usual. A fever greater than 106 degrees Fahrenheit can result in brain damage and possibly death. Fevers greater than 106 degrees are very unusual.

Why Drink Plenty of Fluids?

It is important to drink fluids when you have a fever. It is important because fever causes considerable fluid loss through the skin and perspiration. Because it is difficult to measure fluid loss, it is good to drink 1 to 2 quarts of extra fluid each day that you have a fever.

How are Fevers diagnosed?

A thermometer is used to measure the body temperature. The temperature can be taken in the mouth, rectum, ear, or under the arm.

How are Fevers treated?

Treatment is usually directed at whatever is causing the fever. Some steps that can help bring down a fever or comfort a person include the following: Acetaminophen or ibuprofen can help reduce a fever. Fevers greater than 106 degrees F are very serious. These high fevers need to be treated in the hospital. If you believe you may have a fever, please consult your doctor.

Fever Seizures?

A child with a high fever may have a febrile seizure. Symptoms of a seizure include shaking or jerking of the arms and legs, a fixed stare or the eyes rolling back, drooling, heavy breathing, and the skin turning blue. If your child has a febrile seizure, contact your doctor immediately.
The majority of children with febrile seizures have rectal temperatures greater than 102 degrees F. Most febrile seizures occur during the first day of a child's fever. Children prone to febrile seizures are not considered to have epilepsy, since epilepsy is characterized by recurrent seizures that are not triggered by fever.

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