Build a 'What would you do?' clinical scenario content page for the brand 'FNP Mastery'. Reproduce this case faithfully; do not change the vitals, options, or correct answer. Eyebrow: 'Clinical Scenario'. H1: '58-Year-Old Male with Acute Chest Pain'. Subtitle: 'A time-sensitive presentation requiring rapid clinical decision-making'. Chief Complaint: 'I feel like an elephant is sitting on my chest.' History of Present Illness: Raymond Delgado, a 58-year-old male, presents to an outpatient family practice clinic with sudden onset of severe, crushing substernal chest pain that began ~20 minutes ago while sitting in the waiting room. Heavy pressure radiating to his left jaw and down his left arm. Acutely distressed, diaphoretic, reports nausea. Denies recent illness, trauma, or prior episodes. Vital Signs: BP 158/94 mmHg; HR 102 bpm, irregular; RR 22; SpO2 94% on room air; Temp 98.4°F (36.9°C). Medical History: PMH HTN, T2DM, hyperlipidemia. Medications: Lisinopril 20 mg, Metformin 1000 mg BID, Atorvastatin 40 mg. Social: 30 pack-year smoking history, quit 2 years ago. Family Hx: father had MI at age 62. Physical Exam: alert, anxious, diaphoretic, moderate distress clutching chest; CV tachycardic irregular rhythm, no murmurs/rubs/gallops, S1/S2 present; lungs clear bilaterally; abdomen soft non-tender; extremities no edema, pulses 2+ bilaterally. Question: 'What is your priority action?' Options: A) Administer sublingual nitroglycerin 0.4 mg and reassess symptoms in 5 minutes. B) Activate emergency medical services (call 911) and obtain a 12-lead ECG immediately. C) Order serum troponin levels and a complete metabolic panel, then determine next steps based on results. D) Administer oral metoprolol 25 mg to reduce heart rate and decrease myocardial oxygen demand. The CORRECT answer is B. Include a 'Reveal Answer' interaction and a thorough rationale (this is a classic ACS/STEMI-risk presentation; activate EMS and get a 12-lead first — do not delay with outpatient workup or treatments). Exactly ONE soft CTA: 'Sharpen your clinical judgment with FNP Mastery — start free.' Footer: aligned with AANP/ANCC certification exam content outlines, educational use only; © 2026 FNP Mastery.