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Difficult Airway Algorithm

DAS difficult-intubation algorithm — plan A through D.

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flowchart TD
A[Plan A: optimal direct or VL\nlaryngoscopy] --> A_OK{Success?}
A_OK -- yes --> Confirm[Confirm with capnography]
A_OK -- no --> B["Plan B: SGA<br/>(2nd-gen LMA)"]
B --> B_OK{Ventilate adequately?}
B_OK -- yes --> Decision{Wake or proceed?}
B_OK -- no --> C[Plan C: face-mask ventilation]
C --> C_OK{Ventilate?}
C_OK -- yes --> Decision
C_OK -- no --> D["Plan D: CICO — front-of-neck access<br/>(scalpel-bougie-tube)"]
D --> Secure[Secure airway + call for help]