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13 Cards in this Set
- Front
- Back
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What effect does myocardial injury have on EKG? |
ST-elevation |
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What effect does ischemia have on EKG? (2) |
- ST-depression - T-wave inversion |
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Do the leads predict location of ischemia?
Injury? |
Ischemia - no
Injury - yes |
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How is severity of ST-elevation from myocardial injury determined to be benign or severe with EKG? |
Concave up is benign :-)
Concave down is severe :-( |
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Which leads correspond to the inferior wall of LV? |
II, III, aVF |
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Which leads correspond to lateral wall of LV? |
I, aVL, V5, V6 |
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Which leads correspond to the anterior wall of LV? |
V1-V4 |
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Which leads correspond to the anteroseptal wall of LV? |
V1, V2 |
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What does a Q-wave mean? |
Area of infarction or dead muscle |
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What defines a significant Q-wave? (2) |
More than 1 box wide and more than 1/3 the amplitude of the QRS complex |
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What does tall, narrow T-waves mean? |
Hyperkalemia |
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What is a delta wave?
What does it indicate? |
Inflection between Q and R waves
Indicates Wolff-Parkinson-White Syndrome |
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What is Wolff-Parkinson-White syndrome? |
Extra electrical pathway located in the heart |
