In the management of a suspected snake envenomation, the presence of ptosis and difficulty swallowing most strongly suggests envenomation by which type of snake?
Elapid snakes
Viperid snakes
Boidae snakes
The presence of ptosis (drooping eyelids) and dysphagia (difficulty swallowing) are indicative of neurotoxic envenomation, which is characteristic of elapid snakes (e.g., coral snakes, cobras, mambas). These symptoms result from neurotoxins blocking neuromuscular transmission, which can lead to respiratory paralysis. Viperid snake bites typically manifest with localized swelling, pain, and tissue damage due to primarily cytotoxic and hemotoxic venom. Boidae snakes (e.g., boas, pythons) are non-venomous constrictors and do not cause envenomation.
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