By the end of this Gold Standard lesson, the learner should be able to: - Explain normal state, initial insult, cellular response, organ response, compensation, decompensation, clinical findings, and complications for Airway Obstruction and Stridor. - Interpret inspiratory, expiratory, and biphasic stridor to localise the level and severity of airway obstruction. - Differentiate the management of partial upper airway obstruction (position, medication) from complete obstruction (emergency airway). - Apply assessment-to-action reasoning to recognise silent obstruction (absent stridor with persistent distress) as a pre-arrest emergency. - Distinguish obstruction relievable by position and medication from obstruction requiring immediate procedural intervention. On the exam, writers often pair stable-sounding options with unstable data—notice the mismatch before you commit. If the stem names a license or role, reread that line; scope errors are classic trap answers even when the clinical topic is familiar. Run a 60-second scan: breathing work and oxygenation, perfusion and end organs, neuro baseline, likely infection sources, and devices that can fail quietly. When two answers feel partly right, pick the one that reduces imminent harm and matches orders for the role...