The ECG records the heart's electrical signals and serves as an efficient method to detect irregularities and monitor the health of your heart. Consider an ECG if you experience chest pain or heart palpitations, encounter shortness of breath, feel dizziness, light-headedness, or confusion.
Your healthcare provider can order an ECG to determine if blocked or narrowed arteries in the heart (coronary artery disease) are causing chest pain or a heart attack, identify previous heart attacks. ECG can also assess the effectiveness of certain heart disease treatments, such as a pacemaker.
Your body's internal pacemaker, the sinoatrial node,initiates your heartbeat through an electrical signal. An ECG captures and monitors this signal's influence on your heart as it contracts and relaxes during each beat. Your healthcare provider assesses the amount and strength of electrical activity, as well as the time intervals between the various waves or peaks representing the electrical impulses.
Heart rhythm: Detecting irregular heartbeats.
Heart attack: Revealing evidence of current or previous heart attacks, specifying the affected part and extent of damage.
Blood and oxygen supply to the heart: Helping determine whether reduced blood flow is causing chest pain.
Heart structure changes: Providing clues about an enlarged heart, heart defects, and other issues.
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