SHARP ECG TEST question with answers
tachycardia and bradycardia - ->100 bpm
<60 bpm
-Bigeminy - -every other complex is a PVC
-Trigeminy - -pattern in which every third complex is a premature beat
-Premature Junctional Contraction (PJC) - -Rate: Normal or accelerated
P wave: inverted or absent
QRS: normal
Conduction: normal
rhythm: irregular: PICs occur early in cycle of baseline rhythm
-an ectopic pacemaker in the AV Junction produces PJC's
-may occur in heatlhy or diseased hearts
-if occasional, insignificant
-Premature Atrial Contraction (PAC) - -Heart Rate: Depends on underlying rhythm
Regularity: Interrupts the regularity of underlying rhythm
P-Wave: can be flattened, notched, or unusual. May be hidden within the T wave
PRI: measures between .12-.20 seconds and can be prolonged; can be different from other
complexes
QRS: <.12 seconds
-Characteristics of Ventricular Tachycardia - -Wide an bizarre QRS complex, greater than 100
beats per minute, absent P waves, no PRI, can be monomorphic or polymorphic
-SA node rate - -60-100 bpm
-AV node rate - -40-60 bpm
-Prukinje fiber rate - -15-40bpm
-Accelerated Junctional Rhythm - -regular rhythm, rate 60-100, p waves inverted or occur
before during or after QRS, PRI measured if p before QRS <0.12
-AV Blocks - -AV blocks are identified as a delay or interruption of the electrical impulse
conduction beyond the AV node. It is evaluated by measuring the PR interval in ECG traces.
THE PR INTERVAL IS THE KEY OF DIFFERENTIATION AND CLASSIFICATION OF
THE AV BLOCKS!
-First degree AV block - -prolonged PR interval
-Second Degree AV block type 1 - -AKA Wenckebach
tachycardia and bradycardia - ->100 bpm
<60 bpm
-Bigeminy - -every other complex is a PVC
-Trigeminy - -pattern in which every third complex is a premature beat
-Premature Junctional Contraction (PJC) - -Rate: Normal or accelerated
P wave: inverted or absent
QRS: normal
Conduction: normal
rhythm: irregular: PICs occur early in cycle of baseline rhythm
-an ectopic pacemaker in the AV Junction produces PJC's
-may occur in heatlhy or diseased hearts
-if occasional, insignificant
-Premature Atrial Contraction (PAC) - -Heart Rate: Depends on underlying rhythm
Regularity: Interrupts the regularity of underlying rhythm
P-Wave: can be flattened, notched, or unusual. May be hidden within the T wave
PRI: measures between .12-.20 seconds and can be prolonged; can be different from other
complexes
QRS: <.12 seconds
-Characteristics of Ventricular Tachycardia - -Wide an bizarre QRS complex, greater than 100
beats per minute, absent P waves, no PRI, can be monomorphic or polymorphic
-SA node rate - -60-100 bpm
-AV node rate - -40-60 bpm
-Prukinje fiber rate - -15-40bpm
-Accelerated Junctional Rhythm - -regular rhythm, rate 60-100, p waves inverted or occur
before during or after QRS, PRI measured if p before QRS <0.12
-AV Blocks - -AV blocks are identified as a delay or interruption of the electrical impulse
conduction beyond the AV node. It is evaluated by measuring the PR interval in ECG traces.
THE PR INTERVAL IS THE KEY OF DIFFERENTIATION AND CLASSIFICATION OF
THE AV BLOCKS!
-First degree AV block - -prolonged PR interval
-Second Degree AV block type 1 - -AKA Wenckebach
