# Compression bandage the limb/extremity
and elevate [for a start.].
Objective is to restrict lymphatic flow/dissemination
of venom.
# Next you want to splint or sling the limb to limit
the proximal movement of lymph fluid.
The lymphatic vessel system relies on muscle flex,
thus the less muscle activity/pump, the better the
restriction of lymph fluid/venom dissemination.
You going to need to carry enough wide elastic/stretch
bandage to do the whole limb.. and advisable to practice
-get reasonably proficient with the first-aid technique
before hand.... You still need to watchful that you don't
overly restrict blood circulation and do more harm than
good.
PBI First Aid is not always ideal when you take
in account certain factors...
(1) the kind of snake involved,
(2) ETA where proper medical care can be provided,
(3) whether lay individuals are able to distinguish between
scenarios with different management considerations,
(4) Likelihood PBI will be applied correctly or incorrectly
and that immobilization can be realistically maintained.
98% of North American venomous snakebites are by Crotalinae,
fewer than 0.2% of those victims die, thus incorrectly
deploying pressure immobilization on a large number
of envenomation victims can result in increased and/or
permanent limb injury while saving virtually no lives.
On such basis health professionals do not necessarily
recommend PBI as a blanket First Aid for All viper
envenomations.
