Conclusion
An electrocardiography (EKG) test is used to monitor the electrical activities in your heart. This test helps detect the presence of numerous heart conditions before you start seeing signs and symptoms. The test should be done by a professional and licensed technician.
References;
[1] https://www.medicalnewstoday.com/articles/248002
[2] https://www.mayoclinic.org/diseases-conditions/chest-pain/symptoms-causes/syc-20370838
[3] https://my.clevelandclinic.org/health/diseases/17848-myocardial-ischemia
[4] https://medlineplus.gov/arrhythmia.html
[5] https://www.britannica.com/science/cardiac-muscle
[6] https://www.medicalnewstoday.com/articles/156993