Worked Walkthrough: The First Two Minutes
Execute the first two minutes of a witnessed adult cardiac arrest response as a sequence of roles and actions.
A witnessed adult collapse in a workplace lobby: unresponsive, only gasping, AED one hallway away. Run the first three Chain of Survival links in parallel: call 911, start high-quality compressions, and bring/use the AED. The common trap is serial rescue: check, discuss, call, wait, search for AED, then finally compress. It feels orderly but costs circulation time. 00:00-00:15 Check scene safety, shout-tap-shout, scan for normal breathing. Recognition must be fast. Gasping is not normal breathing, so the path converges on CPR/AED. 00:15-00:30 Point to named people: caller, AED runner, EMS guide. Say the exact 911 message. Activation, AED retrieval, and…
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