Term
| What is characteristic of a second degree Mobitz type I heart block? |
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Definition
P-R interval progressively gets larger until there is a dropped QRS complex (P wave without a QRS complex).
--This is also known as Wenckebach beat-- |
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Term
| What is characteristic of a second degree Mobitz type II heart block? |
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Definition
| The P-R interval duration is unchanged and occasionally you will observe a P wave without a QRS complex. These blocks are thought to be caused by a refractory AV node which is not responding to a delayed atrial depolarization. |
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Term
| What is characteristic of a 1st degree heart block? |
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Definition
| An increased P-R interval and no dropped QRS. |
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Term
| What is characteristic of a 3rd degree heart block? |
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Definition
| P waves are unassociated from the QRS complex. |
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