What Does EKG Mean?

Introduction

An EKG (or ECG) stands for Electrocardiogram. It is a simple and painless test used to record the electrical activity of the heart. Doctors use this test to evaluate the heart’s rhythm, detect abnormalities, and diagnose various heart conditions.

How Does an EKG Work?

The heart generates tiny electrical impulses that help it beat in a coordinated manner. These impulses travel through the heart and cause it to contract, pumping blood throughout the body. An EKG records these impulses using small sensors (electrodes) placed on the skin.

Key Uses of an EKG:

  • Detect heart rhythm abnormalities (arrhythmias)
  • Monitor heart conditions such as heart attacks or ischemia
  • Evaluate chest pain to determine if it is heart-related
  • Check the effectiveness of heart treatments (e.g., pacemakers, medications)

Understanding EKG Readings

A standard EKG consists of waves and segments: - P wave – Represents atrial contraction (upper heart chambers) - QRS complex – Shows ventricular contraction (lower heart chambers) - T wave – Represents heart relaxation between beats

Abnormalities in these waves may indicate conditions such as: - Atrial fibrillation (AFib) – A common irregular heartbeat - Myocardial infarction (Heart Attack) – Signs of poor blood supply to the heart - Bundle branch block – Issues with electrical signal conduction

Conclusion

EKGs are crucial tools for diagnosing and monitoring heart health. If you ever experience symptoms like chest pain, irregular heartbeat, dizziness, or shortness of breath, your doctor may order an EKG for further evaluation.

Source recommendations

1. American Heart Association: Guidelines on Electrocardiography

  1. https://www.heart.org/en/health-topics/heart-attack/diagnosing-a-heart-attack/electrocardiogram-ecg-or-ekg
  2. https://www.ahajournals.org/doi/10.1161/circulationaha.108.191095
  3. https://pubmed.ncbi.nlm.nih.gov/19281932/
  4. https://www.ahajournals.org/doi/10.1161/circulationaha.106.180200
  5. https://pubmed.ncbi.nlm.nih.gov/10483977/

2. European Society of Cardiology: Recommendations for ECG Interpretation

  1. https://www.escardio.org/Guidelines/Clinical-Practice-Guidelines
  2. https://academic.oup.com/eurheartj/article-abstract/39/16/1466/2965923
  3. https://www.escardio.org/Guidelines/Clinical-Practice-Guidelines/Neonatal-Electrocardiogram-Guidelines-for-the-interpretation-of-the
  4. https://www.uwmedicine.org/sites/stevie/files/2018-11/Provider-Resources-Cardiology-international_criteria_for_electrocardiographic_interpretation_in_athletes.pdf
  5. https://www.ahajournals.org/doi/10.1161/circulationaha.113.006179

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