VAPAGuide - Flowcharts

Atrax sp. Hadronyche sp. Latrodectus sp. Phoneutria sp. Aranea sp. Loxosceles sp. Bird spider-like species Numerous other species
Minutes to (hours)

Bird spider-like species		All other species

Skin: urticaria, papular dermatitis; Eyes: conjunctivitis, keratitis, iritis, chorioretinitis		Local pain, swelling, redness

		Loxosceles sp.
		24–48 h

Chorioretinal scars		Necrosis

Loxosceles sp.

1–3 days

Anaemia

Atrax sp.
Hadronyche sp.
Latrodectus sp.
Phoneutria sp.
Aranea sp.

Minutes to hours

Cholinergic effects:
vomiting, profuse sweating, hypersalivation, increased bronchial secretion, priapism, bradycardia, arterial hypotension

Adrenergic effects:
tachycardia, arrhythmias, arterial hypertension, hyperglycaemia

Somatic effects:
muscle fasciculations and spasms, muscle pain, motor agitation

Cardiovascular failure

Emergency & clinical flowcharts