E00031342.jpg (240 × 50 pixels, file size: 6 KB, MIME type: image/jpeg)
The second strip is with the DDD pacmaker turned on, with a long sensed PR interval of 300 ms.
Note that in spite of Mobitz I conduction above with some conducted intervals less than 300 ms., even with a long sensed AV interval of 300 ms. the patient no longer conducts through the AV node.
EKG World Encyclopedia http://cme.med.mcgill.ca/php/index.php , courtesy of Michael Rosengarten BEng, MD.McGill
Michael Rosengarten BEng, MD.McGill
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