Q. How are electrocardiography (EKG) tests interpreted?

Doctor Answer is medically reviewed by SecondMedic medical review team.

Answered by Secondmedic Expert

Interpreting an electrocardiogram (EKG) is a complex process that requires a trained eye to distinguish subtle changes in the waveforms. In essence, an EKG measures the electrical activity of your heart by tracking and recording its rhythm. This allows medical professionals to diagnose a variety of cardiac conditions, including arrhythmia and other cardiovascular diseases.

To interpret an EKG, doctors look at how quickly electrical impulses travel through different parts of the heart as well as how they spread throughout the organ. An EKG consists primarily of six graphical readings known as “waves” — P-wave, QRS-complex, T-wave, U-wave (optional), ST segment and PR interval — which indicate whether abnormalities are present or not within specific areas in the heart's chambers. Additionally, any changes in amplitude or duration are carefully noted.

Doctors typically use three primary methods when interpreting an EKG: visual inspection (checking for changes in size or shape), numerical analysis (using specialized formulas to measure wave amplitudes), and comparison techniques with standard normal beats (comparing characteristics from healthy subjects). Together these enable medical professionals to detect even minor issues which might otherwise go unnoticed until it is too late for effective treatment; this information can save lives by allowing doctors to make informed decisions about their patients' care much more efficiently than ever before!

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