A few years ago I was nearly bitten by a brown snake near Mawsons Hut in the Jugungal wilderness KNP, I walked into a small clearing and did not see the snake, I was about half a meter away, I obviously scared it, the snake reared up ready to strike, I jumped backward, I recon that I walked through air, I slowly retreated from the clearing, the snake watched my ready to strike until I was out of site, I was not wearing gaiters, I soon put them on.
Recently I have done some investigating on the latest treatments of snakebites, the Apr-June 2008 issue of Wild has a very good article called Scaly Encounters, which has some good information. Here is some information that I have come across mostly from the Wild article.
There are 155 species of Terrestrial snakes in Australia (new ones are being discovered even now), 90 of which are venomous and 32 are suspected or known to be capable of causing death in a human being.
In one study based near Leeton, NSW, out of 455 close encounters between researchers and wild eastern brown snakes only three resulted in an offensive advance.
Some snakes deliver bites that are more often “dry” than venom-bearing: these will not result in any illness. Secondly, even if you have received a significant dose of venom from a potentially lethal species, death in less than 14 hours is rare- you have time to act.
Treatment
In Australia, the cornerstone of first aid is the pressure immobilisation (PI) technique, a simple, revolutionary measure that has been proven effective when applied correctly. It consists of applying a broad pressure bandage for the length of the entire limb that has been bitten, commencing at the fingers or toes, and then immobilising the limb in a splint or sling. Immobilization is absolutely crucial. Keep the victim still.
Four or more wide elastic bandages should be included in your walking kit.
Studies have shown an alarming ignorance of this life-saving procedure. In one review, out of 264 patents presenting at Cairns Base Hospital over five years, only two had received correct first aid. (Of these 264 patents, one died)
In a study including lay and physicians volunteers, most participants failed to reach the optimum bandage pressure when following an instruction card on PI technique. This suggested that the bandages should be applied more firmly than you think. Cutting off circulation, however is counter productive.
Bites from some snakes may go unnoticed. Headache, nausea, vomiting, abdominal pain, sudden collapse, signs of paralysis such as drooping eyelids, discoloured urine or unexplained bleeding may all be symptoms of snake bites and this cause should be explored. However, fang marks can be very hard to detect, even post-mortem!
There seems to be some minor conjecture about the latest PI treatment.
The First Aid treatment advice from the Queensland Ambulance service mentioned by Earthling on this thread advises bandaging the site first and then apply the bandage from the toes or fingers
The Wild article and the First Aid advice from the Australian Venom Research Unit from The University of Melbourne advises to only apply the pressure bandage from the extremity of the limb
http://www.avru.org/firstaid/firstaid_pib.htmlBut both methods are better than no treatment.
Tony