12-lead EKG axis, infarct patterns, and interpretation skills for EKG technicians.
38 cards · basic cards · AI-written, checked twice. Edit anything.
- What is the normal QRS axis range in degrees?
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-30 to +90 degrees- Which leads are the inferior leads?
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II, III, aVF- Which leads are the anterior leads?
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V1, V2, V3, V4- Which leads are the lateral leads?
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I, aVL, V5, V6- ST elevation in II, III, and aVF indicates?
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Inferior wall myocardial infarction- ST elevation in V1 through V4 indicates?
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Anterior wall myocardial infarction- ST elevation in I and aVL indicates?
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Lateral wall myocardial infarction- What is left axis deviation?
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QRS axis more negative than -30 degrees- What is right axis deviation?
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QRS axis more positive than +90 degrees- What is the normal PR interval?
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0.12 to 0.20 seconds (3 to 5 small squares)- What is the normal QRS duration?
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Less than 0.12 seconds (3 small squares)- What is the normal P wave duration?
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Less than 0.12 seconds (3 small squares)- What does T wave inversion indicate?
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Ischemia or prior myocardial infarction- What does peaked T wave indicate?
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Hyperkalemia or acute myocardial infarction- What does ST depression indicate?
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Ischemia, strain, or posterior wall infarction
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