Understanding the Basics of an EKG and Heart Function

Introduction

An electrocardiogram (EKG or ECG) is a test that records the electrical activity of the heart. It is a crucial tool in diagnosing various heart conditions, from arrhythmias to heart attacks.

How Does the Heart Work?

The heart functions as a pump, circulating blood throughout the body. It has four chambers: - Two atria (upper chambers) that receive blood - Two ventricles (lower chambers) that pump blood out

The heart beats due to electrical signals that originate in the sinoatrial (SA) node and travel through the atrioventricular (AV) node to the ventricles. These impulses produce the heart's rhythmic contractions.

What Does an EKG Measure?

An EKG records the heart’s electrical activity and provides information about: - Heart rate (how fast the heart is beating) - Heart rhythm (regular or irregular beats) - Heart structure (signs of previous heart attacks or other abnormalities)

Common Heart Conditions Diagnosed with EKG

  1. Arrhythmias – Irregular heartbeats, such as atrial fibrillation (AFib)
  2. Heart Attack (Myocardial Infarction) – Identifying damage to heart muscles
  3. Heart Enlargement (Cardiomegaly) – Suggestive of high blood pressure or other conditions
  4. Electrolyte Imbalances – Changes in potassium or calcium levels affecting heart function

When Should You Get an EKG?

An EKG might be recommended if you experience symptoms like: - Chest pain - Palpitations - Shortness of breath - Dizziness or fainting - High blood pressure

Conclusion

Understanding your EKG results can help detect heart conditions early. If you have concerns, consult your doctor for further evaluation!

Source recommendations

1. American Heart Association Guidelines

  1. https://professional.heart.org/en/guidelines-and-statements
  2. https://www.heart.org/
  3. https://professional.heart.org/en/guidelines-statements
  4. https://cpr.heart.org/en/resuscitation-science/cpr-and-ecc-guidelines
  5. https://www.heart.org/en/healthy-living/fitness/fitness-basics/aha-recs-for-physical-activity-in-adults

2. European Society of Cardiology Guidelines

  1. https://www.escardio.org/Guidelines/Clinical-Practice-Guidelines
  2. https://academic.oup.com/eurheartj/article/42/34/3227/6358713
  3. https://www.escardio.org/Guidelines
  4. https://academic.oup.com/eurheartj/article/44/39/4043/7238227
  5. https://www.escardio.org/

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