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| extended QRS interval is indicative of: |
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| a small square on the EKG represents: |
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| extended PR interval indicates: |
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| RR' in V1/V2 & extended QRS: |
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| RR' in V5/V6 & extended QRS: |
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| when is a QRS isoelectric? what does that mean in terms of axis? |
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| isoelectric when Rwave=Swave, vector is perpendicular to that lead |
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| which leads are normally isoelectric? |
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| biphasic Pwaves indicate: |
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| R>S in V1, RAD, rightward rotation: |
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| Right ventricular hypertrophy |
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| left ventricular hypertrophy |
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| asymmetric ST depression and T wave inversion (V5/V6) |
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| infarct; 1 small square wide & >/= 1/3 amplitude of QRS |
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| ST elevation with Q waves: |
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| subendocardial infarction |
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| symmetrical T wave inversion: |
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| asymmetrical T wave inversion: |
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| Q waves and T wave inversions in Lead I, V2, V3, V4: |
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Definition
| occlusion of left anterior descending artery (LAD)- anterior infarct |
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| Q waves and T wave inversions in leads I, aVL, V5, V6: |
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Definition
anterolateral infarct; occlusion of one of three arteries: 1. left circumflex artery 2. marginal branch of left circumflex artery 3. diagonal branch of LAD |
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| Q waves & Twave inversions in leads II, III, aVF |
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Definition
| inferior infarct; right coronary artery |
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| unusually large R wave and upright T wave in V1: |
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Definition
| posterior infarct;posterior descending artery or distal right coronary artery or distal left circumflex artery |
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