Education for All

Education for All. By: Azhar Sohail.

ECG Rhythm Interpretation. Module I ECG Basics.

To recognize the normal rhythm of the heart - “Normal Sinus Rhythm.”.

ECG Basics. How to Analyze a Rhythm. Normal Sinus Rhythm.

ECG. Electro. Cardio. Gram. Electrocardiography is the process of producing an Electrocardiogram (ECG/EKG)..

ECG Machine. Commonly known as 12 Lead ECG Machine.

ECG Speed:. The standard speed is 25mm/sec. It must be used when various ECG components, such as HR, PR interval, or QT intervals are calculated manually..

ECG Voltage:. The standard setting when recording 12-lead ECG is 10mm/mV. This setting is used when the amplitude of ECG components such as R-wave height and ST segment deviation are measured..

Note: The paper speed and voltage are usually written on the bottom of the ECG for reference..

Horizontally. The ECG Paper. One small box - 0.04 s.

Calculation:. 25mm/sec. 25mm=1sec. 1 mm= 1/25. 1 mm=0.04sec.

Every 3 seconds (15 large boxes) is marked by a vertical line..

SA Node - Dominant pacemaker with an intrinsic rate of 60 - 100 beats/minute..

Normal Impulse Conduction. Sinoatrial node AV node Bundle of His Bundle Branches Purkinje fibers.

Impulse Conduction & the ECG. Conductionand Heart.

P wave - Atrial Depolarization. QRS - Ventricular D epolarization.

Atrial depolarization. +. The PR Interval. delay in AV junction.

End of Module I ECG Basics.