Rhythm pt. II- Exam 2

Sinus Block

sinus arrest, morphology consistent

PR interval

count from P wave to beginning of Q wave (no more than 5 blocks)

1st degree AV block

PR interval consistently gets longer

Saying for 1st degree

If QRS is far from the P first degree

2nd degree Wenckebach

normal rhythm than missing QRS with a P wave still, gradual lengtheninf in PR interva;

Saying for 2nd degree Wenckebach

Longer, longer drop wenckebach

2nd degree Mobitz

PR interval normal, QRS widened, missing QRS, still a P wave

Saying for 2nd degree Mobitz

If P waves do not make it through Mobitz 2

Complete 3rd degree AV block

SLow rate, lots of P waves, inconsistent PR interval

Bundle branch block

R prime ( a wide, weird shaped QRS)

Right BBB

M shaped R prime in V1 or V2

Left BBB

Mountain-like peaks, curvy, in V5 or V6