Key Concepts
Introduction
Scenario setup A client becomes agitated, pacing, and threatens staff. Other clients are nearby. Environmental safety and team communication are priorities. RPN responsibilities: de-escalation within training, call for help, protect others, follow policy. Traps: isolating with the client alone without backup, minimizing threats. This case-study format is intentional: boards reward trajectory thinkingโwhat changed, what is unstable, and what you do next for the role named in the stem. For REx-PN (Canada), read the assignment line before you eliminate answers. Slow read: re-scan the stem for vitals trends, oxygen settings, allergies, and time since onsetโcase items often hide the decisive clue in a single line. 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...