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15 Cards in this Set
- Front
- Back
ECG or EKG
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-An electrical record for the heart using surface electrodes.
-Not an action potential. |
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Arrhythmia
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-Irregular heart beat
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Fibrillation
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-Myocardial cell depolarizations become asynchrones
-The heart begins to quiver and no blood is being pumped -Ventricular fibrillation is life-threatening |
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Dipole
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-A separation of electrically charged regions
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Myopathes
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-Damage that occurs to the heart
-Usually due to a heart attack |
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PVC
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-PreVentricular Contraction
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P Wave
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-Atrial depolarization
-ECG wave that occurs toward the end of the entire heart's diastolic period and beginning of atrial systole |
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Bradycardia
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-HR less than 60 bpm
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Primary AV Block
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- (>0.2 sec) increase in PR time interval
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Secondary AV Block
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-When 1 out of 2-4 atrial AP's can pass/skip ventricles resulting in P Waves with no QRS
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Tertiary AV Block
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-No atrial activity passes to ventricles
-P Wave does NOT lead to QRS complex -Ventricles driven slowly by Bundle of His and Perkinje Fibres |
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QRS Complex
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-Ventricles depolarizing (R), atria repolarizing (S)
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Tachychardia
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-HR greater than 100 bpm
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T Wave
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-The ventricles repolarize
-ECG wave occurs at the end of ventricular systole and beginning of ventricular diastole |
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Flutter
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-Contraction rates between 200-300 bpm
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