SSM BASIC DYSRHYTHMIA REVIEW WITH COMPLETE SOLUTIONS, EXAMS OF ADVANCED EDUCATION

SSM BASIC DYSRHYTHMIA REVIEW WITH COMPLETE SOLUTIONS, EXAMS OF
ADVANCED EDUCATION




Conduction System - ANSWER



Inherent Rate of SA node - ANSWER60-100 beats per minute



Inherent Rate of AV node - ANSWER40-60 beats per minute

AV node acts as a "gate keeper" for ventricles



Inherent Rate of Bundle of His - ANSWER40-60 beats per minute



Inherent Rate of Ventricles - ANSWER20-40 beats per minute



P wave - ANSWERReflects atrial depolarization



PR interval - ANSWERRepresents the interval from the time the impulse
leaves the SA node, the delay at the AV node.



QRS - ANSWERRepresents ventricular depolarization. The time required for
the impulse to travel through R & L ventricles

, Normal PR interval - ANSWER0.12-0.20 seconds



Normal QRS - ANSWER0.04 -.10 or <0.12



T wave - ANSWERRepresents ventricular repolarization



QT interval - ANSWERRepresents total ventricular activity (depolarization to
repolarization)



ST segment - ANSWERRepresents time between completion of ventricular
depolarization and beginning or repolariation



Sinus Rhythm - ANSWERRate is 60-100, it is regular, normal PR and QRS
interval. One P wave for every QRS



Normal Sinus Rhythm - ANSWER



Sinus Bradycardia - ANSWERRate is < 60, rhythm is regular, P wave for every
QRS. May be normal is some people, especially atheletes



Sinus Bradycardia - ANSWER



Sinus Tachycardia - ANSWERRate is > 100 BPM (100-160), rhythm is regular, P
for every QRS. Response to bodies need for increase HR