1. Nasal O₂ 5 L/min. High-flow catheter?
2. Atropine 0.25mg
3. Remifentanil 1-3ng/ml or midazolam 0.5mg/dose, dexmedetomidine 0.5µg/kg
4. Lidocaine spray in airways 20-30 times
5. Blocks such as transcricoid and superior laryngeal?