INTRODUCTION TO PYREXIA
Fever (also known as pyrexia, from Greek meaning fire) is a frequent medical sign that describes an increase in internal body temperatures to levels above normal.
What Is Fever?
The thermostat in the body is a part of the brain known as the'' hypothalamus.'' The ''hypothalamus'' knows what temperature your body should be (usually around 98.6 Fahrenheit, or about 37 Celsius) and sends your body the message to keep the temperature constant. Most people's body temperature tends to change a little bit. It is usually lower in the morning but can be felt a little higher in the evening. The temperature can fluctuate repeatedly as kids run around, play and exercise. A fever is considered one of the body's immune mechanisms to attempt a neutralization to perceived threat inside the body. The hypothalamus resets the body to a higher temperature in response to an infection, illness, be it virus or bacteria.
TYPES AND CLASSIFICATION:
As fever is a prominent symptom of many diseases, in humans it will appear in the common appellation of diseases:
Puerperal Fever
Scarlet Fever
Typhoid fever
Malaria
Yellow fever
Ebola fever
Viral Hemorrhagic Fever
Dengue Fever
Fever Of Unknown Origin (PUO)
Measuring Fever:
When A patient is suspected to be suffering from pyrexia, that person's body temperature is measured with a thermometer. Body temperature can be measured in many ways by putting the thermometer in different places:
• Temperature in the anus (rectum / rectal)
• Temperature in mouth (Oral)
• Temperature in the Under arm (Axillary)
• Temperature In the ear (otic)
Causes of FEVER:
Mostly fever is caused by different types pathogens entering the body repeatedly. The immune system gets weaker by this process and results into fever. Fever is a common symptom which represents a lot of medical conditions or diseases:
Infectious diseases
Skin inflammations
Virus , bacteria Infections
Metabolic disorders
Adverse reaction of anti-biotics
SYMPTOMS:
A Feverish individual has a feeling of cold despite an increased body temperature, and increases in heart rate, muscle tone and shivering which may sometimes lead to hypothermia. Fever is usually accompanied by sickness behavior which consists of lethargy, depression, anorexia, sleepiness, hyperalgesia, and the inability to concentrate.
General Treatment Of Pyrexia:
Fever should not necessarily be treated. It is a signal that there is a problem in the body. Even when treatment is not indicated, however, febrile patients are generally advised to keep themselves adequately hydrated (mostly recommended water) as the dehydration produced by a mild fever can be more dangerous than the fever itself. Most people take medication against fever because the symptoms cause great discomfort. Treatment can normally be the anti-pyretics such as paracetamol (acetaminophen). Heat loss may also be accomplished by heat conduction, convection, radiation or evaporation. (perspiration).
by Fahm Deen
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