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Is it likely that the patient had an accident due to a venomous fish?

Inquire

  • time of the sting
  • local, possibly regional pain
  • nausea, vomiting, diarrhoea

Assess

  • state of consciousness

Measure

  • blood pressure/pulse
  • respiratory rate
  • oxygen saturation (pulse oximeter)

Observe/investigate

  • (very) painful puncture sites 
  • swelling around the puncture site
  • bleeing from the puncture site
  • evidence for a deep and/or penetrating wound (thoracic/abdominal cavity/pericardial space, inner organs, blood vessels, nerves) (in particular imporant in stingray accidents)
  • evidence of blood loss (haemorhagic shock)
  • number of puncture sites (important in stonefish stings for assessment of the amount of venom injected and to determine the antivenom dose)
  • local/regional swelling,
  • clinical signs of cardiovascular disturbances, such as cardiac dysrhythmias, arterial hypotension, shock.

Is it likely that injection of venom has taken place?

Diagnostics

Inquire re:

  • time of the sting,
  • local, possibly regional pain,
  • nausea, vomiting, diarrhoea.

Assess:

  • state of consciousness.

Measure:

  • blood pressure/pulse,
  • respiratory rate.

Observe/investigate:

  • puncture sites,
  • number of puncture sites (important in Stonefish stings for assessment of the amount of venom injected and to determine the antivenom dose),
  • local/regional swelling,
  • clinical signs of cardiovascular disturbances, such as cardiac dysrhythmias, arterial hypotension,
  • signs of paralysis.