TOX TABLES
Methaemoglobinaemia
IMPORTANT SHIT
Fe2+ iron on haemoglobin binds forming Fe3+ which won’t carry oxygen
Saturations will be 85%, unresponsive to O2
Dx. “Co-Oxymetry” or Gas
Saturations will be 85%, unresponsive to O2
Dx. “Co-Oxymetry” or Gas
SPECIFIC ANTIDOTE
Methylene blue 1mg/kg + repeat 30-60 min (Contraindicated in G6PD)
Exchange transfusion
Citric acid/vitamin C
Hyperbaric O2
NAC
- If >20% asymptomatic, >10% and symptomatic
Exchange transfusion
Citric acid/vitamin C
Hyperbaric O2
NAC