Fever in Cats
Overview:
There are two causes of an increase in body temperature, fever or hyperthermia (one cause of hyperthermia is heat stroke). A fever (also known as pyrexia) is defined as an abnormally high body temperature which is generated by the body to fight disease. It´s purpose is to raise the internal body temperature to levels which will debilitate or kill pathogens.
Normal body temperatures in cats range between 100 - 102.5°F (37.7 - 39.1°C).
What causes a fever?
Temperature is regulated by a part of the brain called the hypothalamus. This acts as a thermostat fin the body. Fever occurs when the body senses the presence in the blood of small molecules known as pyrogens (fever producing substances). Pyrogens usually come from a source outside the body and, in turn, stimulate the production of pyrogens inside the body. Pyrogens tell the hypothalamus to increase the temperature set point.
What are the symptoms of fever?
Lethargy
Dehydration
Listlessness
Loss of appetite
Pain & tenderness when touched
Shivering
Rapid breathing
How can I tell if my cat has a fever?
The only way to accurately tell if your cat has a fever is to take its temperature. This is really best to be performed with two people, one to hold the cat & the other to take the temperature. Let your cat´s behaviour guide you, if he/she becomes stressed or has a history of being difficult to handle when being medicated etc., then it is safer for you to seek the help of your veterinarian. To do this, shake down the column of mercury until it reads 96°F (36.1°C), then lubricate the bulb tip with petroleum jelly. Grasp the base of your cat´s tail & lift it. Insert the lubricated end of the thermometer about halfway into your cat´s rectum & hold it in place for 3 minutes. Remover the thermometer, wipe it clean with a tissue & read the silver column of mercury.
FROM:http://www.cat-world.com.au/FeverInCats.htm