Introduction
Scenario setup
A 48-year-old with HTN and family history reports episodes of exertional chest tightness relieved by rest, now more frequent. Today pain occurs at rest for 20 minutes with diaphoresis. Vitals in office: BP 132/84, HR 88, RR 18, SpO₂ 98%. ECG shows nonspecific changes; first troponin pending.
This is unstable angina / possible ACS in an ambulatory context. NP reasoning focuses on risk stratification, immediate ED referral when red flags exist, and avoiding false reassurance when symptoms escalate to rest pain with autonomic features. NP traps: sending home with only PPI for “GERD” when ischemic features dominate; ordering stress tests as first step during ongoing rest pain; vague follow-up. This case-study format is intentional: boards reward trajectory thinking—what changed, what is unstable, and what you do next for the role named in the stem. For NP certification preparation (United States), read the assignment line before you eliminate answers. Slow read: re-scan the stem for vitals trends, , , and —case items often hide the decisive clue in a single line. On the exam, writers often pair with —notice the mismatch before you commit.