What is the best immediate action to evaluate right ventricular involvement in an inferior MI?

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Multiple Choice

What is the best immediate action to evaluate right ventricular involvement in an inferior MI?

When an inferior myocardial infarction is suspected, checking the right heart quickly is crucial because the right ventricle can be involved and this changes both symptoms and treatment. The fastest way to detect right ventricular involvement is to record a right‑sided 12‑lead ECG, focusing on the right chest lead V4R (and the other right‑sided equivalents if needed). A ST‑segment elevation in V4R confirms RV infarction, which guides management immediately. This is preferred over waiting for imaging because it directly informs how to support preload and revascularize, since right ventricular infarction often makes preload crucial and can make nitrates or diuretics harmful. An echocardiogram can assess RV function but takes more time, so the right‑sided ECG is the best immediate step.

When an inferior myocardial infarction is suspected, checking the right heart quickly is crucial because the right ventricle can be involved and this changes both symptoms and treatment. The fastest way to detect right ventricular involvement is to record a right‑sided 12‑lead ECG, focusing on the right chest lead V4R (and the other right‑sided equivalents if needed). A ST‑segment elevation in V4R confirms RV infarction, which guides management immediately. This is preferred over waiting for imaging because it directly informs how to support preload and revascularize, since right ventricular infarction often makes preload crucial and can make nitrates or diuretics harmful. An echocardiogram can assess RV function but takes more time, so the right‑sided ECG is the best immediate step.

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