CSCT EXAM PREP UPDATED ACTUAL QUESTIONS AND CORRECT ANSWERS

CSCT EXAM PREP UPDATED ACTUAL QUESTIONS AND
CORRECT ANSWERS

Question:
1. Multifocal Atrial Tachycardia
Answer:
-HR>100bpm (usually 100-150bpm; may be as high as 250bpm)
-Irregularly irregular rhythm w/ varying PP, PR, RR intervals
-3 distinct P-wave morphologies in the same lead
-Isoelectric baseline b/w P-waves (no flutter waves)
-not just a sinus rhythm w/ frequent PACs

Question:
2. Paroxysmal Atrial Tachycardia
Answer:
-atrial tachycardia that begins & ends abruptly
-P wave abnormal in comparison to sinus P wave
-atrial rate >100bpm
-3 consecutive identical ectopic p waves
-QRS usually normal unless pre-existing bundle branch
-isoelectric baseline

Question:
3. Premature Atrial Complex (PAC)
Answer:
-abnormal (non-sinus) P wave is followed by a QRS complex
-can hide in preceding T wave

Question:
4. Atrial Fibrillation
Answer:
-irregularly irregular rhythm
-no P waves
-absence of an isoelectric baseline
-variable ventricular rate
-QRS complexes usually <120ms
-coarse or fine fibrillary waves

Question:
5. Atrial Flutter
Answer:
-narrow complex tachycardia
-regular atrial activity at ~300bpm
-flutter waves (saw-tooth) best seen in leads II, III, aVF
-loss of isoelectric baseline

, Question:
6. Ashman's Phenomenon
Answer:
-type of beat w/ a wide QRS complex, typically mimicking RBBB
-typically appears during atrial fibrillation
-often mistaken for PVCs
-follow a short R-R interval and are preceded by a long R-R interval
-aberrantly conducted complex that originates above the AV node rather than originating in the right or left
ventricle

Question:
7. Aberrancy
Answer:

Question:
8. Junctional Escape Rhythm
Answer:
-junctional rhythm w/ a rate of 40-60bpm
-QRS complexes are typically narrow (<120ms)
-no relationship b/w QRS complexes and any preceding atrial activity

Question:
9. Accelerated Junctional Rhythm
Answer:
-rate will be 60-100bpm
-occurs when the rate of an AV junctional pacemaker exceeds that of the sinus node
-arises when there is increased automaticity in the AV node coupled w/ decreased automaticity in the sinus
node
-retrograde P waves may be present and can appear before, during or after the QRS complex

Question:
10. Junctional Bradycardia
Answer:
junctional rhythm at a rate of <40bpm

Question:
11. Junctional Tachycardia
Answer:
junctional rhythm at a rate of >100bpm

Question:
12. Premature Junctional Complex