Sinus Exit Block and Sinus Arrest Result in Similar ECG

question 39

Multiple Choice

Sinus exit block and sinus arrest result in similar ECG tracings. The distinguishing factor is that in sinus exit block, the:

• A)QRS is slightly wider than normal.
• B)P waves are inverted or entirely absent.
• C)pause duration is usually greater than 6 seconds.
• D)pause duration is a multiple of the R-R or P-P interval.

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Benefits that arise from a firm's actions but are enjoyed by other parties or firms without compensation, typically leading to an under-provision of a good or service.

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Industry Size

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