Octopus bite: Difference between revisions
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== | ==Background== | ||
*Venom contains tetrodotoxin | *Blue-ringed octopus (genus ''Hapalochlaena'') is commonly cited venomous octopus | ||
**Venom contains tetrodotoxin (Inhibits voltage-gated Na<sup>+</sup> channels causing paralysis) and is potentially lethal | |||
**Becomes bright yellow with blue rings when provoked | |||
== | [[File:blue_ringed_octopus.jpg|thumb|Blue ringed octopus]] | ||
* | |||
==Clinical Features== | |||
*Local erythema | |||
*Paresthesias | *Paresthesias | ||
*Flaccid paralysis | *Flaccid paralysis | ||
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==Differential Diagnosis== | ==Differential Diagnosis== | ||
{{Marine envenomation DDX}} | {{Marine envenomation DDX}} | ||
== | ==Diagnosis== | ||
* | *Clinical diagnosis | ||
* | |||
==Management== | |||
*Supportive treatment only (no antivenom exists) | |||
==Disposition== | |||
==See Also== | ==See Also== | ||
*[[Marine toxins and envenomations]] | *[[Marine toxins and envenomations]] | ||
==External Links== | |||
==References== | |||
<references/> | |||
[[Category:Tox]][[Category:Environ]] | [[Category:Tox]][[Category:Environ]] | ||
Revision as of 04:54, 5 March 2016
Background
- Blue-ringed octopus (genus Hapalochlaena) is commonly cited venomous octopus
- Venom contains tetrodotoxin (Inhibits voltage-gated Na+ channels causing paralysis) and is potentially lethal
- Becomes bright yellow with blue rings when provoked
Clinical Features
- Local erythema
- Paresthesias
- Flaccid paralysis
- Respiratory Failure
Differential Diagnosis
Marine toxins, envenomations, and bites
- Toxins
- Ciguatera
- Scombroid
- Tetrodotoxin (e.g. pufferfish)
- Shellfish poisoning
- Amnesic shellfish poisoning
- Diarrheal shellfish poisoning
- Neurotoxic shellfish poisoning
- Paralytic shellfish poisoning
- Stingers
- Venomous fish
- Cone shell
- Lionfish
- Sea urchins
- Crown-of-Thorns Starfish
- Stonefish
- Other: Catfish, zebrafish, scorpion fish
- Nematocysts
- Coral reef
- Fire coral
- Jellyfish (Cnidaria)
- Portuguese man-of-war
- Sea anemones
- Seabather's eruption
- Phylum porifera (sponges)
- Bites
- Infections
Diagnosis
- Clinical diagnosis
Management
- Supportive treatment only (no antivenom exists)