Electrocardiography

An electrocardiogram or ECG/EKG is a painless and non-invasive test recording the electrical activity of the heart.

Use of ECG/EKG
It shows:

• How fast the heart is beating
• Whether the rhythm of the heartbeat is steady or irregular
• The strength and timing of electrical signals as they pass through each part of the heart
• Poor blood flow to the heart muscle (ischemia)
• Certain abnormalities of the heart, such as an enlarged heart
• Recovery from a heart attack, progression of heart disease, or the effectiveness of certain heart medications or a pacemaker

Electrocardiography (ECG/EKG)
For Detail    

Intro EKG Interpretation Part 1 

Intro EKG Interpretation Part 2

Intro EKG Interpretation Part 3

12 Lead EKG (ECG)