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Normal sinus rhythm Regular Rate: 60-100 P Wave: Present, upright PR Interval: 0.12-0.20 sec QRS: <0.12 sec Sinus Bradycardia Regular Rate: <60 P Wave: Present, upright PR Interval: 0.12-0.20 sec QRS: <0.12 sec Prophecy EKG 2025 Questions and Answers Graded ASinus Tachycardia Regular Rate: 100-150 P Wave: Present, upright PR Interval: 0.12-0.20 sec QRS: <0.12 sec Premature Atrial Contraction IRREGULAR Rate: depends on underlying rhythm P wave: Present or hidden in T wave PR Interval: 0.12-0.20 sec QRS: <0.12 sec Atrial Fibrillation IRREGULAR Atrial rate: UNMEASURABLE
Typology: Exams
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Normal sinus rhythm Regular Rate: 60 - 100 P Wave: Present, upright PR Interval: 0.12-0.20 sec QRS: <0.12 sec Sinus Bradycardia Regular Rate: < P Wave: Present, upright PR Interval: 0.12-0.20 sec QRS: <0.12 sec
Sinus Tachycardia Regular Rate: 100 - 150 P Wave: Present, upright PR Interval: 0.12-0.20 sec QRS: <0.12 sec Premature Atrial Contraction IRREGULAR Rate: depends on underlying rhythm P wave: Present or hidden in T wave PR Interval: 0.12-0.20 sec QRS: <0.12 sec Atrial Fibrillation IRREGULAR Atrial rate: UNMEASURABLE
PR Interval: N/A QRS: <0.12 sec Supraventricular Tachycardia Regular Rate: 150 - 350 P wave: Hidden in QRS or T wave PR: unable to determine QRS: <0.12 sec Junctional Rhythm Regular Rate: 40 - 60 P Wave: ABSENT or INVERTED PR Interval: None or <0. QRS: <0.12 sec
Accelerated Junctional Rhythm Regular Rate: 60 - 100 P Wave: NONE or INVERTED PR Interval: None or <0. QRS: <0.12 sec Junctional Tachycardia Regular Rate: > P Wave: NONE or INVERTED PR Interval: None or <0. QRS: <0.12 sec
Chaotic Coarse: big waves Fine: small waves Rate: unmeasurable P Wave: NONE PR Interval: N/A QRS: N/A Idioventricular Regular Rate: 20 - 50 P wave: NONE PR Interval: N/A QRS: WIDE, >0.12 sec Accelerated Idoventricular Rhythm
Regular Rate: 50 - 100 P wave: NONE PR Interval: N/A QRS: WIDE, >0.12 sec 1st Degree AV Block Regular Rate: 60 - 100 P Wave: Present, upright PR interval: >0.20 sec CONSISTENTLY LONG QRS: <0.12 sec Husband stays late till 9 consistently 2nd Degree AV Block Type I Mobitz, Wenckebach
Atrials and ventricles don't communicate Rate: regular atrial P wave: Present, upright No relationship between P waves and QRS PR Interval: VARIABLE QRS: variable P-P ad R-R consistent but NO correlation Husband and wife live separate lives and don't communicate SA Node 1st 60 - 100 AV Node 2nd 40 - 60 Bundle of His
3rd 40 - 45 Right and Left Bundle Branches 4th 40 - 45 Purkinje Fibers 5th 20 - 50 1 Small Box 0.04 sec 1 Big Box 0.20 sec Junctional Rhythms SA Node DID NOT FIRE AV Node fired NO P WAVE bc SA node didn't fire Narrow QRS P Wave
Trigeminy PVC occurs every THIRD beat Couplet 2 PVCs together Triplet 3 PVCs together Multifocal Multiple shapes Monomorphic V Tach Same Shapes V Tach Polymorphic V Tach Different Shapes V tach Coarse V Fib
Chopy but not as high as polymorphic V tach Fine V Fib Fine and fibrillatory Idioventricular Rhythms Only purkinje fibers firing WIDE QRS always Atrially Paced Spike comes before P Ventricularly Paced Spike comes before QRS and QRS will be wide AV Paced Spike before P and before QR Failure to Capture
