EKG interpretation is a core skill tested throughout medical school and on USMLE Step 1, yet it often feels overwhelming. This guide focuses on pattern recognition, core intervals, and classic board-style findings to help you quickly identify arrhythmias, ischemia, electrolyte abnormalities, and conduction blocks.
Built for fast recognition and test-day confidence, not memorizing every waveform.
✔️ Normal EKG components and intervals
✔️ Rapid identification of common arrhythmias
✔️ AV blocks explained clearly (1st–3rd degree)
✔️ STEMI localization by lead and coronary artery
✔️ Key ischemic vs non-ischemic ST-segment changes
✔️ Electrolyte abnormalities (K⁺, Ca²⁺) and drug effects
✔️ 12 high-yield practice questions with explanations
• USMLE Step 1 prep
• Pre-clinical cardiology exams
• Clinical rotations needing quick EKG review
• Students who want a clear, repeatable approach to EKGs
EKG interpretation is a core skill tested throughout medical school and on USMLE Step 1, yet it often feels overwhelming. This guide focuses on pattern recognition, core intervals, and classic board-style findings to help you quickly identify arrhythmias, ischemia, electrolyte abnormalities, and conduction blocks.
Built for fast recognition and test-day confidence, not memorizing every waveform.
✔️ Normal EKG components and intervals
✔️ Rapid identification of common arrhythmias
✔️ AV blocks explained clearly (1st–3rd degree)
✔️ STEMI localization by lead and coronary artery
✔️ Key ischemic vs non-ischemic ST-segment changes
✔️ Electrolyte abnormalities (K⁺, Ca²⁺) and drug effects
✔️ 12 high-yield practice questions with explanations
• USMLE Step 1 prep
• Pre-clinical cardiology exams
• Clinical rotations needing quick EKG review
• Students who want a clear, repeatable approach to EKGs