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15 Cards in this Set
- Front
- Back
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True or False:
EKGs demonstrate the heart's mechanical functionality |
False!
EKGs demonstrate the electrical activity of the heart |
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What methods can you utilize to determine heart rate?
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Rule of 300
Rate Table Multiply by 10 |
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What is the normal blood flow through the heart?
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Inferior and Superior Vena Cava; Rt Atrium; Tricuspid Valve; Rt Ventricle; Pulmonic Valve; Lungs; Pulmonary Veins; Lt Atrium; Mitral Valve; Lt Ventricle; Aortic Valve; Aorta; Systemic Circulation
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What does the P-Wave represent?
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Atrial Depolorization
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What does the P-R Interval represent?
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Delay in the AV Node
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What does the QRS complex represent?
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Ventricular Depolarization
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What does the T-Wave represent?
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Ventricular Repolarization
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What acts as the primary pacemaker of the heart?
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The SA Node
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What acts as the secondary pacer of the heart?
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The AV Node
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What are the 6 limb leads?
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Leads I, II, III, aVR, aVL, and aVF
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What are the precordial or "augmented" leads?
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V1, V2, V3, V4, V5, V6
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What is a normal QRS?
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0.04-0.12 sec
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What is a normal P-R Interval?
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0.12-0.20 sec
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What is a normal QTI?
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Less than 0.44 sec (dependent on HR)
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On EKG graph paper, the horizontal axis measures:
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Time
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