EKG HW1
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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Sinotrial Node Inherent Rate | 60-100 BPM
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Atrioventricular Junction Inherent Rate | 40-60 BPM
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Purkinje Fibers Inherent Rate | 20-40 BPM
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Lead I Placements | Left arm = +, Right arm = -
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Lead II Placement | Left foot = +, Right arm = -
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Lead III Placement | Left foot = +, Left arm = -
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P Wave | Atrial Depolarization
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PR Interval | Spread of impulse through AV node, bundle of His, right and left bundle branches, and Purkinje fibers
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QRS complex | Spread of electrical impulse through the ventricles (Ventricle depolarization)
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T Wave | Ventricle repolarization
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QT Interval | Total ventricular activity, from ventricular depolarization to repolarization
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Normal P Wave Characteristics | Smooth and rounded, no more than 2.5mm in height, no more than 0.11 sec in duration, positive leads I, II, aVF, and V2 through V6
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Normal PRI Characteristics | 0.12 to 0.20 sec, Shortens as heart rate increases, Lengthens as HR decreases
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QRS complex Normal Duration | 0.06-0.10 sec
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Wide QRS Complex may indicate | incomplete or complete bundle branch block
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ST Segment is elevated if it is | more than 1 mm in a limb lead, more than 2 mm in a chest lead
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Normal T Wave Characteristics | slightly asymmetric, 5mm or less in height in limb lead or 10mm in chest lead, 0.5 mm or more in height in leads I and II
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Peaked T Wave may be a sign of | Hyperkalemia
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Created by:
adalmadge
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