Symptoms and Tests for Cardiovascular Conditions - NCLEX-PN

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Question

Which EKG lead localizes to the base of the heart?

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Answer

aVF is the main lead that points to the base of the heart (inferiorly). ST segment elevations in this lead help localize the area of infarction and can help identify the coronary artery involved. The precordial leads (V1-V6) do not point towards the base of the heart. Lead I is considered a lateral lead.

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