An electrocardiogram (ECG) is a common heart health test, but a normal result doesn't guarantee a healthy heart. The electrical system is measured by ECG, but it cannot detect blockages or structural ...

Even a normal ECG doesn’t always mean a healthy heart. Physician Dr. Chaitanya explains how subtle issues can go unnoticed and how to spot them early.

In a “normal” electrocardiogram (ECG), the transition of the QRS axis in the precordial leads occurs between leads V 3 and V 4 (i.e., there is a dominant S in V 3 and a dominant R in V 4).

Even if your ECG comes back normal, it doesn't always mean your heart is completely healthy. Dr. Chaitanya shares examples from his patients to explain why subtle heart issues can go unnoticed. "One ...