Key Concepts
Introduction
The PAT is a rapid 30-second across-the-room assessment evaluating three domains. Appearance (TICLS mnemonic: Tone, Interactiveness, Consolability, Look/gaze, Speech/cry) reflects adequacy of ventilation, oxygenation, and brain perfusion -- it is the most important component. Work of Breathing assesses respiratory effort through nasal flaring, retractions, head bobbing, tripod positioning, and audible sounds (stridor, wheezing, grunting). Circulation to Skin evaluates cardiovascular function via pallor, mottling, and cyanosis. The PAT generates six physiological categories: stable (all normal), respiratory distress (abnormal WOB only), respiratory failure (abnormal appearance + WOB), compensated shock (abnormal circulation only), decompensated shock (abnormal appearance + circulation), and cardiopulmonary failure (all three abnormal). On the exam, writers often pair stable-sounding options with unstable dataโnotice 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...