Heat stroke, Biology

Heat stroke

It is also known as sun stroke or hyperthermia and results in excessive rise of body temperature and absence of sweating.

Etiology: The disease is caused by high environmental temperature and high humidity, may or may not be accompanied with severe muscular activity. The animals with heavy hair coat or kept in poorly ventilated houses are more susceptible. Damage to hypo-thalamus as in FMD, dehydration, poisoning with strychnine, levamisole or claviceps and iodism also result in hyperthermia.

Pathogenesis: When the environmental temperature is high, animal gains more amount of heat from environment. However, due to high humidity, the heat can not be lost in proportional amount through perspiration as a result of which body temperature is elevated. Similarly, due to excessive muscular activity, there is more heat gain and if environment is having high humidity, heat can not be lost which increases body temperature. In such cases, the set point of body temperature in the hypothalamus is not affected.

Clinical signs: There is sudden rise in body temperature, pulse and respiration rates while sweating and salivation are almost absent. The animals become dull and depressed, thirst is increased and they try to lie down in cool places. If the condition persists, animals collapse, show convulsions and die.

Diagnosis: It is diagnosed by clinical symptoms. However, it should be differentiated from hyperpyrexia which is usually related to infectious agents. In cases of septicaemia, growth on blood culture, petechial haemorrhages on mucosae, and changes in blood picture are noticed.

Treatment: If the temperature increases suddenly, cold packs should be applied and animal should be kept at cool places with enough drinking water. These animals should be given enough glucose and protein as supportive treatment to maintain the body requirements. Normal saline should be given intravenously.

Posted Date: 9/20/2012 1:49:17 AM | Location : United States







Related Discussions:- Heat stroke, Assignment Help, Ask Question on Heat stroke, Get Answer, Expert's Help, Heat stroke Discussions

Write discussion on Heat stroke
Your posts are moderated
Related Questions
ENTROP Y - Transfer of energy takes place from high energy level to low energy level. Rudol f clausius gave this term. During it there is collision of particles, r

For homework, I had to prove that a certain catalyst was a protein, then tell how I would purify the protein, then tell how I would clone a human chromosomal region that contains t

Osmotic adjustment or Osmoregulation - Osmotic Stress If concentration of soluble matter (in the form of minerals and small organic molecules) builds up in the external medium

Explain Asystole and Pulseless Electrical Activity (PEA) The outcomes from these rhythms are generally much worse than for VT/VF, unless a readily correctable cause is identif

Normal 0 false false false EN-IN X-NONE X-NONE MicrosoftInternetExplorer4

Which is better to grow plants in Rock sand or soil? When we grew plants inside, with there is no wind, and the plants in the rocks grew improved than the plants that were grow

Explain soybean protein The need for the development of soybean protein concentrates stemmed primarily from two considerations: to enhance protein concentration and to improve

How many ATP molecules are produced for each glucose molecule used in fermentation? How many ATP molecules are produced for each glucose molecule used in aerobic respiration? I

Neurological Assessment The neurological assessment is made up of eight neurological criteria which have high, significance with gestational age. (Fig. 3.2) In order to perf