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30 Cards in this Set
- Front
- Back
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What does the standardization tell you
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amplitude
time |
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Extends from the end of the P wave to the beginning of the QRS
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PR segment
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Downward deflection before the R wave
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Q wave
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First upward deflection
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R wave
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A downward deflection that is not followed by an upward deflection
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QS wave
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Lead that looks at the leftatrium and the high lateral wall
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Lead 1
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Lead that looks at the inferior side of the heart and right atrium
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Lead 2
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Lead that looks at the bottom side of the heart, left ventricle and left atrium
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Lead 3
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Lead that looks at the left atrium and high lateral wall of the ventricle
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aVL
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Lead that looks up at the heart
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aVF
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Inferior leads
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2
3 aVF |
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Septal leads
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V1
V2 |
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Anterior wall leads
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V3
V4 |
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Lateral leads
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V5
V6 |
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High lateral leads
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1
aVL |
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Coronary artery that supplies the inferior heart 2,3,aVF
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RCA
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Coronary artery that supplies V4-V6 and 1 and aVL
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LCA
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Coronary artery that supplies V1-V3
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LAD
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What is the best place to look for a P wave
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Lead 2
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Normal P waves
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not wider or taller than 2.5 little boxes
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P wave too tall
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right atrial enlargement
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P wave to long
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left atrial enlargement
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Normal PR interval
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less than 5 little boxes
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What do abnormalities in the PR segment signify
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atrial ischemia or infarction
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QRS wider than 3 little boxes
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BBB
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QRS taller than 4 big boxes
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hypertrophy
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Q wave greater than 1/3 the height of the R wave signifies
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ischemia
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ST depression
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ischemia
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ST elevation
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infarct
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Inverted T wave
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ischemia
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