ECG interpretation
Clinical teaching and practical ideas for your next study session.
Medical Education
ST Depression in V1–V3: When to Record Posterior ECG Leads
Learn when ST depression in V1–V3 should prompt posterior leads, how to position V7–V9, and why reciprocal clues raise suspicion without proving posterior infarction.
Medical Education
STEMI With a Negative First Troponin: Reperfuse, Don’t Wait
A normal early troponin does not cancel an ECG-defined STEMI. Learn why the reperfusion decision follows the ECG, how biomarkers fit later, and when to reassess the tracing.