Understanding results

A simplified heartbeat

Illustration only: not to scale, not a diagnostic “normal ECG” template. Real ECGs use several leads and must be interpreted in context.

P, QRS and T describe different parts of the heart’s electrical activity. Clinicians examine rhythm, timing and the full tracing alongside your history.

What does “normal” mean?

A clinician assesses the rhythm and electrical pattern in context. A resting ECG is a short snapshot; intermittent problems may not appear during that recording. A normal report alone cannot explain every symptom or rule out every condition.

Prepare for a conversation about your results

We do not assign a normal/abnormal label or calculate a diagnosis. Keep units and the lab range together; ask the clinician what the result means for you.

Your answers remain in this page only. They are not sent to AI or saved. Leaving or refreshing clears them. Do not include your name, ID number or full medical report.