ECG Case #11 - Question #1 Answer

The ECG findings include:

1. Normal sinus rhythm with a first degree AV block

The PR interval in this ECG is very long, about 380 milliseconds (normal is 120 - 200 ms or 0.12 - 0.20 seconds). A P wave preceeds each QRS complex, thus this is 1st degree AV nodal block.

1st degree AVB strip

PROCEED TO ECG CASE #11 QUESTION #2