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CONSERVATION CORNER
June 26, 2006
Snakebite!
by James L. Cummins
If you are like me you are already spending as much time as possible
out in Mississippi's great outdoors chasing fish, camping and just enjoying
nature. But unlike fish, almost everything surrounding a snakebite is
controversial. I was told by Dr. Bill McKell of Ocean Springs, Mississippi,
that "a sober person, properly clothed, behaving sensibly, is almost
never bitten." I would presume that many of the snakebite victims
each year in the U.S. would refute this.
Below, is the advice of Dr. McKell regarding what we should and should
not do for a snakebite victim in the field.
1. Make sure the victim is away from the snake and
out of danger of additional bites. Identify the snake.
2. Arrange for transportation to a hospital Emergency
Room as soon as possible. Keep the victim calm and still. Do not give
him or her alcohol, for it dilates blood vessels and enhances the spread
of venom. If possible, have them lie flat with the bitten limb at the
same level with the heart. Remove rings and other constricting jewelry
(just don't get caught!).
3. "Tourniquets" are out. It is, however,
almost universally recommended that one apply a large "constricting
band" at a level between the bite site and the heart. Taking care
not to constrict arterial blood flow, this band should allow your little
finger to slip under it. Don't remove the band until antivenin is administered
or decided against, however you might need to slide the band proximally
in advance of the swelling.
4. Incision and suction are no longer recommended.
5. Ice and electric shock have been shown to cause
further tissue damage, so don't use them.
Though this covers pre-hospital assistance, Dr. McKell advises us on
two other controversial treatment modalities.
6. Prophylactic antibiotics are frequently given, but
he has never seen convincing data proving their benefit. If tetanus
immunization isn't current, this should be rectified.
7. The only antivenin approved by the Food and Drug
Administration is associated with 10 to 25 percent rate of immediate
allergic reactions and an almost universal experience of delayed allergic
reactions. For this reason, the routine use of antivenin for all pit
viper bites is not recommended; however, each case should be individually
assessed.
Dr. McKell advises that all snakebite victims should be immediately
taken for medical evaluation. If the patient is within an hour or so
from an Emergency Room, first aid measures such as the constricting
band may be omitted.
James L. Cummins is Executive Director of Wildlife Mississippi, a
non-profit, conservation organization founded to conserve, restore and
enhance fish, wildlife and plant resources throughout Mississippi. Their
web site is www.wildlifemiss.org.
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