Cardiac Diagnostics I

ECG fundamentals: 12-lead acquisition, paper measurements, waveform interpretation, and lead anatomy.

Lessons

12-Lead ECG & Rhythm Strip

Objective 1.1.1 — Electrode placement, ECG paper measurements, waveform components (P, QRS, T, U), intervals, segments, and the 12 leads with their anatomic views.

ECG Interpretation: Axis, Ischemia, Hypertrophy & Rhythm

Objective 1.1.2 — Mean QRS axis & axis deviation, ischemia/injury/infarction patterns by wall, chamber enlargement (RAE/LAE/LVH/RVH), electrolyte effects on the ECG, and the 5-step rhythm strip method.

Sinus, Atrial & Junctional Rhythms

Objective 1.1.3 — Recognize sinus rhythms (NSR, brady, tachy, arrhythmia, arrest), atrial rhythms (PAC, MAR/MAT, SVT, WPW, A-flutter, A-fib), and junctional rhythms (PJC, escape, accelerated, tachycardia).

Ventricular Rhythms, AV Blocks & Conduction Defects

Objective 1.1.4 — Recognize ventricular rhythms (PVC, IVR, V-tach incl. torsades, V-fib, asystole), AV blocks (1st, 2nd Type I/II, 2:1, 3rd), bundle branch blocks (RBBB, LBBB), and paced rhythms.

Exercise Stress Testing & Ambulatory Monitoring

Objective 1.1.5 — Perform an exercise stress test (GXT) using Bruce, Modified Bruce, Naughton, or Weber protocols; recognize ECG/non-ECG findings and termination criteria; perform Holter and event monitor application with patient education.

Module Review & Final Exam

Consolidated high-yield review across the 5 lessons paired with a 50-question final exam. Topic coverage aligned with the RESC 2330 flashcard set.