26 Jan 11
WHAT IS FEVER? Our bodies have the anterior hypothalamus in the brain is responsible for managing for stable body temperature (thermostat) that ranges from 37 + / - 1 degree Celsius. Temperature Measurement Temperatures in the rectum (rectal temperature) is close to actual body temperature (core body temperature). Temperatures in the mouth or the armpit (axillary), around 0.5 to 0.8 degrees lower than rectal temperature, with a note after the measurement for at least 1 minute. Not recommended measure ("guess") the body temperature by touching the hand (without using a thermometer) Physiology Fever (What Happened Fever) Fever usually occurs due to the body exposed to the infection of microorganisms (viruses, bacteria, parasites). Fever can also be caused by non-infectious factors such as immune complexes, or inflammation (inflammation) others. When viruses or bacteria enter the body, various types of white blood cells or leukocytes release "substance causes fever (endogenous pyrogens)," which in turn trigger the production of prostaglandin E2 in the anterior hypothalamus, which then increase the value-threshold temperature and fever occurred. During fever, the hypothalamus carefully controlled so that the temperature rise in body temperature rarely exceeds 41 degrees Celsius. EFFECTS OF FEVER Favorable Impact of Function Immunity (Endurance) Body Some research evidence 'in vitro' (not done directly on the human body) shows the human body's defense function that works well in temperatures of fever, compared to a normal temperature. IL-1 and other endogenous pyrogens will "invite" more leukocytes and increase their activity in inhibiting the growth of microorganisms. Fever also triggers the increased number of leukocytes and increased production / function of interferon (a substance that helps fight microorganisms leukocytes). Negative Impact First, the possibility of dehydration (lack of body fluids). When experiencing a fever, there is increased evaporation of body fluids so that children can lack of fluids. Second, the lack of oxygen. When fever, children with lung disease or heart disease, blood vessel may suffer a lack of oxygen so hoarse lung disease or heart abnormalities acute respiratory tract infection (sob harder. Third, fever above 42 degrees Celsius can cause neurological damage (nerve), although very rare. There is no research evidence which indicates the occurrence of neurological damage when the fever below 42 degrees Celsius. Finally, children under age 5 years (toddlers), especially at the age between 6 months and 3 years, at risk of febrile seizure (febrile convulsions), especially in rectal temperature above 40 degrees Celsius. Febrile seizures usually disappear by themselves, and do not cause neurological disorders (nerve damage). See guidelines febrile seizures. Fever is often accompanied by other symptoms such as headache, decreased appetite (anorexia), weakness, and muscle pain. Most of them associated with fever-causing substances earlier.