Critical Care Paramedic Exam 2025 – 400 Free Practice Questions to Pass the Exam

Question: 1 / 740

Which type of myocardial infarction is suggested by V1-V3 on an EKG?

Anterior MI

The correct answer indicates that an anterior myocardial infarction is associated with the leads V1-V3 on an EKG. These leads primarily provide information about the anterior wall of the heart, as they are positioned over the left anterior descending artery (LAD) territory. When ST-segment elevation occurs in these leads, it is typically indicative of ischemia or necrosis in the anterior myocardium.

Leads V1-V3 reflect changes that occur as a result of occlusion of the LAD, leading to reduced blood flow to the anterior heart. Therefore, when interpreting an EKG that shows elevated ST segments in these leads, it suggests the presence of an anterior myocardial infarction, which is critical for guiding appropriate treatment and intervention.

Understanding the regional implications of lead placements on an EKG is vital for accurate diagnosis and management of myocardial infarctions in a critical care setting.

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Lateral MI

Inferior MI

Posterior MI

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