Hyperthermia in its advanced state referred to as heat stroke or sunstroke, is an
acute condition which occurs when the body produces or absorbs more heat than
it can dissipate. It is usually due to excessive exposure to heat. The heat-regulating
mechanisms of the body eventually become overwhelmed and unable to effectively
deal with the heat, therefore the body temperature climbs uncontrollably.
This is a medical emergency that requires immediate medical attention.
Hyperthermia
can be created artificially by drugs or medical devices. In
these instances it may be used to treat cancer and other conditions. Malignant
hyperthermia is a rare complication of some types of general anesthesia.
The
opposite of hyperthermia is hypothermia, when an organism's temperature
drops below that required for normal metabolism.
A fever is when the
body recognizes its normal core temperature at a higher temperature, mainly
by the “pre-optic region” of the anterior hypothalamus, as to optimize the efficiency
of bodily operations. One example of this is when one gets a bacterial/viral
disease, where the body raises its temperature to let the immune system work
better and to deteriorate the condition of the invaders. Meanwhile, hyperthermia
occurs when the body temperature is raised without the consent of the heat
control centers.
Body temperatures above 40°C (104 °F) are life-threatening.
This compares to normal human body temperature of 36-37°C (97-98°F).
At 41°C (106 °F), brain death begins, and at 45°C (113°F) death is nearly certain.
Internal temperatures above 50°C (122°F) will cause rigidity in the muscles
and certain, immediate death. Heat stroke may come on suddenly, but usually
follows a less-threatening condition commonly referred to as heat exhaustion
or heat prostration. After effects may include sensitivity to heat.
...................................................More
information on Hyperthermia
> Click Here |
