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31 Cards in this Set
- Front
- Back
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What is the Event of the P- Wave?
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Atria depolarize, contracting
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What is the Cardiac cycle of P-Wave?
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Late diastole
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What is the Location of P-Wave?
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SA node triggers an action potienal
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What is the Event of the QRS complex?
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Ventricles depolarize, contract
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What is the Cardiac cycle of the QRS complex?
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Systole
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What is the location of the QRS complex?
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AV node - travels down the bundle of His and turns around
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What is a disorder you would see in the QRS complex and how would you see it?
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Ventricle Hypertension
-Enlarged R Waves |
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What does enlarged R Waves mean indicate
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Ventricle hypertrophy (ENLARGED VENTRICLES)
Healthy = exercise Unhealthy = hypertension |
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What are the 3 main parts of te ECG?
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P waves
QRS complex T Waves |
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What is the Event of the T- Wave?
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Ventricles repolarizing, relaxing
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What is the cardiac cycle of the T- Wave?
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Early diastole
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What is the wave that doesn't show up on all ECG machines?
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U wave
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What does the U wave follow if seen?
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T Wave
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What is the Event of the U Wave?
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Repolarazition of Purkinje Fibers
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Boundaries of the PR intervals?
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Beginning of P to beginning of Q
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Beginning of P to beginning of Q
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Boundaries of the PR intervals?
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What is the Event of the PR intervals?
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Total time for atria contractions
-allows ventricle filling |
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What is the disorder associated with an abnornally long PR interval?
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Could indicate a partial or total Heart Block
(lack of communication between SA & AV node) |
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What is the boundaries of the PR segment?
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End of P Wave to the Start of Q
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End of P Wave to the Start of Q
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What is the boundaries of the PR segment?
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What is the event of PR segment?
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time that depolization wave is delayed at AV node
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What is the boundaries of the QT interval?
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Beginning of Q to the end of T
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Beginning of Q to the end of T
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What is the boundaries of the QT interval?
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What is the event of the QT interval?
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Total time for ventricle to contract
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What is the symptom of disorder with abnormally long QT interval?
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Fainting
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What does abnormally long QT interval indicate?
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That ventricles are slow to repolarize
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What are the boundaries of the ST segment?
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End of S to the beginning of T
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End of S to the beginning of T
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What are the boundaries of the ST segment?
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What is the event of the ST segment?
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Ventricles contract
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What is the event of the
End of T to Next R? |
Ventricles Relax and filling w/blood
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When can the End of T to Next R be short?
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when excercising
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