Systematic Interpretation of

ECGShaza Ali

BCPS, ALS(ERC),ICU Clinical Pharmacist

Content Outline

1. ECG Fundamentalsa) Cardiac Conduction Systemb) ECG Leads2. Normal ECG Morphology .3. 6 Steps Scheme to interpret an ECG4. Major Cardiac Abnormalities Detection From ECG

1. ECG Fundamentalsa) Cardiac Conduction Systemb) ECG Leads

Electric Conduction Representation in ECG

12 ECG Leads

ECG Paper, leads order

Leads View

ECG Paper

2.Normal ECG Morphology1.QRS Morphologies2.R wave progression3.aVR : Inverted waves

1. ECG Fundamentalsa) Cardiac Conduction Systemb) ECG Leads2. Normal ECG Morphology .3. 6 Steps Scheme to interpret an ECG4. Major Cardiac Abnormalities Detection From ECG

3. 6 Steps Scheme to interpret an ECG

6 Steps:1. Rhythm : present / Absent,,, Regular / Irregular2. Rate

P R

RATE ???

6 Steps: 3- AXIS

4- P & PR interval1.P wave Morphology2.Height and width3.Abnormalities include: P mitral

& P Pulmonale

4. : What if No P wave???

V1

PR Interval

1.Normal2.Prolonged

5- QRS

1.Bundle Branch Block2.Ventricular Hypertrophy3.Myocardial Infarction Localization

Arrythmias

https://www.youtube.com/watch?v=riUAFkV7HCU