BSMH ADVANCED ARRHYTHMIA COURSE
EXAM SCRIPT WITH VERIFIED QUESTIONS
AND ANSWERS
●● What is the SA node inherent rate?
Answer: 60-100
●● What is the junctional tissues inherent rate?
Answer: 40 - 60
●● What is the ventricles/Purkinje Fibers inherent rate?
Answer: 20-40
●● What is AV node?
Answer: no pacemaker cells
--receives impulse from atria and passes to ventricles
--delays impulse from atria so ventricle can fill
●● What is isoelectric line?
Answer: represents zero or no electrical activity
,●● What is ECG deflection?
Answer: represents electrical activity causing a deviation from zero
●● What is positive ECG deflection?
Answer: above baseline
●● What is negative ECG deflection?
Answer: below baseline
●● What is biphasic ECG deflection?
Answer: both above and below baseline
●● What is P wave?
Answer: first wave of ECG
●● What does P wave represent?
Answer: spread of impulse through atria (atrial depolarization)
●● What is PR interval?
Answer: measured from beginning of P wave to beginning of QRS
●● What does PR interval represent?
, Answer: time taken for impulse to travel from SA node to ventricular
muscles
●● What is a typical PR measure?
Answer: 0.12 - 0.20 seconds
●● What is QRS complex?
Answer: measured from first deflection following P wave to return to
isoelectric or J point (junction)
"means atria relaxed"
●● What is Q?
Answer: first negative deflection following P and preceding R
●● What is R?
Answer: first positive deflection following P
●● What is S?
Answer: next negative deflection following R
●● What does QRS complex represent?
Answer: spread of impulse through ventricular muscles (ventricular
depolarization)
EXAM SCRIPT WITH VERIFIED QUESTIONS
AND ANSWERS
●● What is the SA node inherent rate?
Answer: 60-100
●● What is the junctional tissues inherent rate?
Answer: 40 - 60
●● What is the ventricles/Purkinje Fibers inherent rate?
Answer: 20-40
●● What is AV node?
Answer: no pacemaker cells
--receives impulse from atria and passes to ventricles
--delays impulse from atria so ventricle can fill
●● What is isoelectric line?
Answer: represents zero or no electrical activity
,●● What is ECG deflection?
Answer: represents electrical activity causing a deviation from zero
●● What is positive ECG deflection?
Answer: above baseline
●● What is negative ECG deflection?
Answer: below baseline
●● What is biphasic ECG deflection?
Answer: both above and below baseline
●● What is P wave?
Answer: first wave of ECG
●● What does P wave represent?
Answer: spread of impulse through atria (atrial depolarization)
●● What is PR interval?
Answer: measured from beginning of P wave to beginning of QRS
●● What does PR interval represent?
, Answer: time taken for impulse to travel from SA node to ventricular
muscles
●● What is a typical PR measure?
Answer: 0.12 - 0.20 seconds
●● What is QRS complex?
Answer: measured from first deflection following P wave to return to
isoelectric or J point (junction)
"means atria relaxed"
●● What is Q?
Answer: first negative deflection following P and preceding R
●● What is R?
Answer: first positive deflection following P
●● What is S?
Answer: next negative deflection following R
●● What does QRS complex represent?
Answer: spread of impulse through ventricular muscles (ventricular
depolarization)