Introduction
RPN Use SI labs and mmHg BP carefully in stems. Your role is continuous observation, accurate I&O, ordered fluid/blood support, oxygen therapy per order, and immediate escalation when perfusion declines—with clear SBAR-style reporting to RN/NP/physician. Canadian items still punish delay for routine tasks when MAP is falling and reward interprofessional activation. Watch scope: no independent vasopressor titration unless extended role is explicit in the stem. For REx-PN (Canada), questions rarely announce the topic in the first sentence. They hide it inside vitals, labs, and a short story. Your job is to name the clinical problem, justify why it matters now, and select the safest next step for the role you are given—before you let distractors pull you toward busywork or out-of-scope heroics. When two answers feel partly right, pick the one that closes risk first and matches your license in the stem. 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...