Snakebite First Aid
Pressure Immobilisation of First Aid for Snakebite
The current pressure-immobilisation method of first aid for Australian snakebites was developed by Dr Struan Sutherland at CSL. It relies on the fact that the major toxic components of venom have a high molecular weight and are too large to cross through the capillaries into the bloodstream. Instead venom initially travels around the body via the low-pressure lymphatic system. Venom eventually will enter the bloodstream and move from there to the peripheral nervous system, where it blocks neuromuscular control, causing life threatening clinical effects.
A firm compression bandage prevents lymphatic return from a bitten limb, whilst still allowing arterial and venous blood flow. By also using a splint, movement of the limb is restricted, thus reducing peristaltic pumping of the lymphatic vessels, further minimising lymph and venom movement past the bandage.
Research has shown that this first aid technique acts to retard the initial venom movement and therefore the onset of symptoms, is comfortable for the victim and may be left on for several hours. The rapid application of first aid is vital.
CSL Principles of First Aid for Snakebite
The CSL Principles of First Aid for Snakebite is a double-sided flyer that includes step-by-step instructions for the pressure immobilisation method for the treatment of snakebite.
CSL Principles of First Aid for Snakebite (PDF, 2.00MB)
CSL SVDK Competency Test and Snakebite Management Quiz
CSL has developed SVDK Competency Tests and a Snakebite Management Quiz to aid competency assessment of staff who may be required to use the SVDK or encounter snakebite in real clinical situations. The competency tests and quiz are designed to be completed electronically and answer sheets can be requested by emailing ih@csl.com.au.
Snakebite Management Quiz (DOC)
SVDK Competency Test 1 (DOC)
SVDK Competency Test 2 (DOC)