An ECG is a moment in time; risk assessment is a process.
A tracing can inform a baseline picture, but a meaningful review also considers medications, relevant laboratory results, known cardiac history, and what ongoing observation would look like in the setting being evaluated.
- QTc interpretation is a technical matter that needs qualified clinical judgment.
- A result must be considered alongside the person’s full medication and health history.
- A comfortable environment cannot correct an unstable rhythm or replace a response plan.