Clinical manifestations vary between species of snakes. Some toxins in venom exert local effects such as swelling, blistering, bruising, and necrosis at the bite site. Other toxins can be distributed systemically through lymphatics and blood vessels and act at distant sites. Common systemic effects include bleeding, paralysis, generalised rhabdomyolysis, and acute kidney injury. Venom injection deep into a limb can cause tissue swelling in the tightly constrained space and compromise neurovascular function. This manifests as “acute compartment syndrome.” Continue reading “Symptoms and First Aid for Venomous Snake Bites”
Zika virus is spread to people through mosquito bites. The most common symptoms of Zika virus disease are fever, rash, joint pain, and conjunctivitis (red eyes). The illness is usually mild with symptoms lasting from several days to a week. Severe disease requiring hospitalization is uncommon.
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Acute radiation sickness can be categorized into three phases: prodrome, latency, and illness. The Table, summarizes the constellation of hematologic, gastrointestinal, and neurologic symptoms, along with the time to onset and dose dependence, associated with each of these phases.
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