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Josh Grimes: Test ResultsEKG  The correct answer is d. Heart block is characterized by p waves "marching through" the QRS complexes, as they do here from left to right. The regular RR intervals, narrow QRS complexes, and lack of associated p waves is characteristic of junctional rhythm. Poor R wave progression is seen in leads V1-3. This may or may not be a pathological finding and can sometimes result from lead placement on the chest wall. Next: Questions about this case |
