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ECG Analysis

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Questions and Answers

Which ECG feature is considered normal in young, healthy athletes?

Diffuse J point ST elevation

Slowly curving ST segment with only an area J point can be found

Merged ST segment and T wave

Sharp J point ST segment and T wave that are well demarcated (correct)

What is the criteria for significant ST segment elevation in leads V2-V3?

≥0.15mV in women and ≥0.2mV in men ≥40yo

≥0.2mV in women and ≥0.25mV in men ≤40yo

≥0.15mV in women and ≥0.25mV in men ≤40yo (correct)

≥0.1mV in women and ≥0.15mV in men ≥40yo

What is the relationship between the P wave and QRS complex that indicates left atrial enlargement (LAE)?

P wave > 0.25mV in lead II

R wave in V5 or V6 >25mm

R wave > S wave in V1

P wave > 0.12s and bifid in lead II (correct)

Which ECG pattern indicates an inferior myocardial infarction?

II, III, aVF Signup and view all the answers

What is the criteria for significant ST segment depression?

In two contiguous leads ≥0.05mV and/or T-wave inversion ≥0.1mV in two contiguous leads with Prominent R wave or R/S ratio>1 Signup and view all the answers

What ECG pattern indicates right ventricular hypertrophy (RVH)?

R wave > S wave in V1 Signup and view all the answers

What is the specific ECG feature that is characteristic of right atrial enlargement (RAE)?

Presence of a prolonged P wave duration in lead II Signup and view all the answers

In anterior myocardial infarction (MI), which ECG leads typically show significant abnormalities?

V1-V4 Signup and view all the answers

What does a prolonged and bifid P wave in lead II suggest on an ECG?

Left atrial enlargement (LAE) Signup and view all the answers

Which condition would most likely present with a pattern of ST segment elevation in leads I, aVL, V5-V6 on an ECG?

Anterolateral myocardial infarction (MI) Signup and view all the answers

What characteristic ECG finding is associated with patterns suggestive of left ventricular hypertrophy (LVH)?

R wave amplitude > S wave amplitude in V1 Signup and view all the answers

Which leads typically show significant ST elevation in the case of an inferior myocardial infarction (MI) on an ECG?