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What is the P wave morphology in 1st degree AV block

User Aqingsao
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Final answer:

In a first-degree AV block, the P wave morphology is typically normal.

Step-by-step explanation:

In a first-degree AV block, there is a delay in conduction between the SA and AV nodes, resulting in an abnormally long PR interval on an ECG. The P wave morphology is typically normal in this type of block, meaning the shape and appearance of the P wave is not affected by the block.

User Melebius
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