Anaesthesia

Agent	Property
Halothane	Most potent, second gas effect
Nitrous Oxide	Fast induction, highest MAC, least potent, diffusion hypoxia
	Non-metabolized, bone marrow depression, not safe in ear surgery

• Ether → Basis of anaesthesia staging
• MAC (Minimal Alveolar Concentration) → Indicator of potency
• Minimum O₂ in mix → 25%
• Agents fluorinated → 🔥 Non-inflammable