There are three main
types of poisonous snakes in Malaysia: the cobra, the viper and the sea snake.
If you are bitten, each produces different symptoms due to the toxins in the
venom released.
Snakebites are not as
common in Malaysia as they are in other parts of Asia and Africa where a large
number of rural people don't wear protective footwear. Most snakebite occurs on
the hands and arms or legs and feet.
Not every cobra's bite
will result in the release of venom. There is a study that shows that the
percentage of "blank" cobra bites may be quite high as much as 45%
out of all cases in Malaysia. Snake charmers in India too are frequently bitten
by their cobras and on one study, it was shown that one out of three snake
charmers bitten by king cobras had no signs of envenomation.
A cobra can do two
things to make the victim suffer: a) bite your or b) eject jets of venom
towards you, usually at your eyes, as far as from 3 meters. This is called
spitting.
A cobra's venom
contains neurotoxin. When a cobra bites you, the cells in the area bitten will
die and degenerate. Sometimes, this may be the only sign you have been bitten
by a cobra and this usually appears within 48 hours of the bite. There is also
immediate pain in the area around the bite. The skin darkens and there may be
blistering. There is a characteristic putrid smell. The area too might swell
progressively. If the neurotoxin enters the blood stream, you may experience
drowsiness, nausea, vomiting, salivation and even euphoria. you would also
suffer shortness of breath and respiratory paralysis which may lead to death in
24 hours or a matter of minutes. Frothing too would occur around your mouth.
The vipers have long
fangs folded up against the upper jaw. When the viper strikes, the fangs stand
erect. There are two groups of vipers: typical vipers and pit vipers. The pit
vipers have a special sensory organ between their nostril and eye to detect
their prey. The viper's toxin is haematoxic which means it affects the
circulatory system.
There is intense pain
and swelling at the bite site which often will ooze with blood. Then the toxin
spreads in the body and begins to affect the clotting factors. Bleeding si a
key sign -- you may bleed from your mouth, nose, anus and under your skin. The
toxin spreads more slowly as it damages the blood vessels. At the end stage,
the vessel collapses manifesting as cold skin, a rapid and feeble pulse and a
gradual loss of consciousness.
Sea snakes are not
aggressive and will only bite you if you provoke them. Nearly 80% of sea snake
bites do not produce venom. And unlike the cobra or viper, their bites may be
painless and free from swelling. you might not even think you have been bitten.
Nevertheless, the venom
is extremely potent containing neurotoxins and myotoxins. The neurotoxins can
paralyze a person just like a cobra. The myotoxins cause your muscles to die
and degenerate thus breaking them down and releasing myoglobin and potassium
into your bloodstream. There may be a change in your urine color to reddish
brown due to the myoglobins present in your urine.
If you are bitten by
any of these poisonous snakes, first keep calm and restrict your movement to
keep down the venom flow into your blood. Take off your rings, watches,
bracelets to allow swelling. Splint the bitten area if you can to restrict
movement. try to keep the bitten area below the level of your heart. Seek
medical help immediately because you will need anti-venom. Do not apply a
tourniquet, cold compress or try to suck the venom out by mouth. Do not attempt
excise the bite with a knife.
Summary: The cobra, the viper
and the sea snake are poisonous. If bitten, they produce different symptoms.
Cobras bite or spit venom. The cells of the affected area die and the skin
darkens and swells. Drowsiness, frothing, shortness of breath and respiratory
paralysis occur. There are typical vipers and pit vipers and the bite is
haematoxic. It affects the circulatory system. Pain, swelling and blooding
occur at the bite site. The toxin destroys blood vessels leading to its
collapse. Sea snake venom contains neurotoxins and myotoxins causing paralysis
and muscle death. If you are bitten by poisonous snakes, stay calm and don't
move Remove accessories to allow swelling. Splint the bitten area and get
immediate medical help. Do not apply tourniquet, suck the venom orally or
excise the area with knife.
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