Author Question: In Third Degree Heart Block: (Read 7557 times)

gbarreiro · **Reply #60 on:** May 18, 2019

The difference between Wenckebach and CHB is that:
◦ CHB has an irregular P-P interval, whereas it's regular in Wenckebach.
◦ CHB has more P waves than QRS complexes, whereas Wenckebach always has one P wave for every QRS complex.
◦ CHB has a regular R-R, whereas Wenckebach is irregular.
◦ CHB has a constant PRI, whereas in Wenckebach it gets progressively longer.

jointhecircus · **Reply #61 on:** May 18, 2019

CHB has a regular R-R, whereas Wenckebach is irregular.

gbarreiro · **Reply #62 on:** May 18, 2019

Thanks

jointhecircus · **Reply #63 on:** May 18, 2019

Welcome

armygirl · **Reply #64 on:** May 18, 2019

The most important diagnostic feature for any of the AV blocks is the:
◦ QRS complex.
◦ P wave.
◦ PRI.
◦ rate.

amynguyen1221 · **Reply #65 on:** May 18, 2019

PRI.

ec501234 · **Reply #66 on:** May 18, 2019

AV dissociation is a feature of:
◦ Third Degree Heart Block.
◦ Type II Second Degree Heart Block.
◦ Wenckebach (Type I Second Degree Heart Block).
◦ First Degree Heart Block.