Snakebite Management in Emergency Settings
Initial Management Priorities
- The American Heart Association recommends activating emergency services immediately for any person bitten by a venomous or possibly venomous snake, as the management priorities are the same regardless of species: rapid transport, supportive care, and antivenom administration when indicated 1, 2
- Rest and immobilize the bitten extremity to reduce systemic venom absorption, as recommended by the American Heart Association 2
- Remove rings and constricting objects from the affected limb to prevent ischemic injury as swelling progresses, according to the American Heart Association guidelines 1, 2
- Minimize patient exertion during transport, as walking increases flow of subcutaneously injected substances and could increase systemic venom absorption, as stated by the American Heart Association 1
Species Identification and Antivenom Selection
- Pit Vipers, which include rattlesnakes, copperheads, and cottonmouths, cause cytotoxic effects: tissue injury, swelling, pain, ecchymosis, potential coagulopathy, hypotension, and bleeding, and are typically treated with CroFab antivenom, as indicated by the American Heart Association 1
- Coral Snakes, found in Southeast and Southwest regions, cause neurotoxic effects: paralysis within minutes to hours, with minimal to no tissue injury, and require different monitoring for respiratory compromise and potential need for ventilatory support, as recommended by the American Heart Association 2
Critical Management Pitfalls to Avoid
- Do NOT delay transport to attempt harmful interventions such as ice application, suction devices, electric shock therapy, tourniquets, or pressure immobilization bandaging, as these methods are ineffective and potentially harmful, according to the American Heart Association 1, 2
- Have epinephrine readily available for potential anaphylactic reactions, as recommended by the American Heart Association 3