EKG
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Systole | Heat muscles are contracting .
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| Diastole | Heart muscles are at rest.
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| Cardiac Output | Volume of blood into the aorta each minute by the heart.
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| Ejection Fraction | Percentage of blood pumped out of a ventricle with each contraction.
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| Myocardial Cells | Working mechanical cells
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| Pacemaker Cells | Specialized cells for electrical conduction (automatic)
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| Properties of Cardiac Cells | Automaticity
Excitability
Conductivity
Contractility
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| SA Node | Located: Top right atrium
Function: "Pacemaker"
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| AV Node & Bundle | Located: Floor (base) of right atrium
Function: Impulses from atria to ventricles
Secondary (40-60 beats)
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| Right & Left Bundle Branches | Atrial ventricular spectum area (muscle)
Less than 20 beats
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| Purkinje Fibers | Located: Lower apex
Function: Receive impulses
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| Leads | Record of electrical activity between 2 electrons
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| Electrodes | "Pads" applied on body
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| P Wave | Atrial Depolarization (Contracting)
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| QRS Complex | Ventricular Depolarization
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| T | Ventricular Repolarization
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| Dysrhythmia | Abnormal heart rhythms
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| SR | Sinus Rhythm
60-100 beats= normal heart rate
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| Normal HR | 60-100
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| Tachycardia | 101-180 beast
Fast Rate
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| Bradycardia | Less than 60 beat
Slow Rate
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| Sinus Arrhythmia | Irregular rate
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| Premature Complexes | Beat before
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| What Causes Atrial Dysrhythmias? |
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| Junctional Rhythm | Occur in AV Junction (no pwave)
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| PEA | Pulse Electrical Activity
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Created by:
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