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Reptile Bites. Chapter 195. Crotalinae (Pit Viper) Bites. Bilateral depressions or pits between and below the eye and nostril Pit used to detect warm-blooded prey Large fangs that fold against the roof of the mouth Rattle snakes included. Diagnosis and Treatment. Local injury: fang marks

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reptile bites

Reptile Bites

Chapter 195

crotalinae pit viper bites
Crotalinae (Pit Viper) Bites
  • Bilateral depressions or pits between and below the eye and nostril
  • Pit used to detect warm-blooded prey
  • Large fangs that fold against the roof of the mouth
  • Rattle snakes included
diagnosis and treatment
Diagnosis and Treatment
  • Local injury: fang marks
  • Coagulopathy: throbocytopenia and elevated PTT
  • Systemic effects: hypotension/tachycardia, metallic taste
  • Treatment mainstay: Antivenom (CroFab or FabAV)
  • Observe for at least 8hrs
coral snake elapid
Coral Snake (Elapid)
  • “Red on yellow, kill a fellow; Red on black, venom lack”
  • Voluntary control of venom injection “dry bite”
  • Symptoms may be delayed for 12hrs
  • Neurotoxic effects: seizures, salivation, fixed and dilated pupils, ptosis; death by respiratory failure
australian elapids
Australian Elapids

Clinically: neurotoxic, cardiovascular depression, renal impairment, and procoagulant toxins (intracranial hemorrhage)

Treat with antivenom

Brown snake below causes rapid death

cobra
Cobra
  • Immediate pain at bite site
  • Followed by cranial n dysfunction, muscle weakness, and parasympathetic stimulation
  • Treat with antivenom
  • Observe for 24hrs
  • This snake can kill an

Elephant with one bite!

gila monster
Gila monster
  • Slow moving lizard in southwestern US
  • Similar to rattlesnake bite but do to lack of fangs requires prolonged bite
  • Requires force to remove reptile from bite site
  • Local wound care and supportive measures (board question)
turtles
Turtles
  • Once thought to be an innocent family pet…now known as a threat to society
  • Its only predator…Dr. Cardinal and a hammer