#TOXINology
see also: [[Redback spider]]
Antidote:: CSL Funnel-web spider antivenom 2 amps
==clinical features develop rapidly within 30 min - 2 hours:==
> resp failure
> hypotension or hypertension
> pulm oedema
> coma
**Appearance**
- body length 1.5 - 4 cm
- dark brown body with shiny cephalothorax
- fangs are 4 mm long and point downwards
- male spider;
- smaller than females but more adventurous
- venom 5x as toxic as female
- all deaths from males
**Management**
- pressure imobilisation
- antivenom:
- 250 units (2 vials) slow IV
- 500 units (4 vials) severe envenomation
- same dose in adults and kids
- repeat Q30-60 min until significant clinical features have resolved
**Indications for antivenom**
- evidence of systemic envenomation
- peri-oral tingling
- muscle fasiculations
- tongue and lips first affected
- salvation/lacrimation
- piloerection
- tachycardia/hypertension
- nausea
- dysponea (pulm oedmea)
- ALOC
**Issues**
- anaphylaxis to antivenom
![[Pasted image 20240415091453.png]]