Anaesthesia Which of the following are used to protect airways – a) LMA b) Endotracheal tube c) Ryles tube d) Combitube e) Sengsten blackmore tube A ad B abc C bd D bcd 💡 Explanation Which of the following are used to protect airways - a) LMA b) Endotracheal tube c) Ryles tube d) Combitube e) Sengsten blackmore tube ✓ Correct Answer: C. bd