Baylor Scott & White EKG EXAM STUDY GUIDE 2026/2027 COMPLETE QUESTIONS WITH VERIFIED CORRECT ANSWERS || 100% GUARANTEED PASS NEWEST VERSION

Baylor Scott & White EKG EXAM STUDY GUIDE 2026/2027 COMPLETE QUESTIONS WITH VERIFIED CORRECT ANSWERS || 100% GUARANTEED PASS NEWEST VERSION 1. what are the 7 lethal rhythms? - ANSWER v fib, v tach, asystole, PEA, idioventricular, 2nd degree T2, complete heart block 2. #4 - ANSWER P-R interval 3. 60bpm, TX: pacing, atropine, treat reversible causes - ANSWER Sinus bradycardia 4. 100-160, TX: identify and tx underlying cause - ANSWER Sinus tachycardia 5. looks like sinus arrest, TX: underlying cause, P waves are different - ANSWER PACs 6. P waves sawtooth, TX: support airway, ditiaziam, bblockers - ANSWER atrial flutter 7. wavy P waves, TX: with HypoTN use cardioversion and anticoagulant - ANSWER a fib 8. youll see the J, rate 40-60bpm, PR interval 0.12, P waves inverted! TX: same as bradycardia - ANSWER junctional rhythm 9. Normal Sinus Rhythm - ANSWER 60-100 bpm all complexes normal and evenly spaced (P, QRS, T) 10. Sinus Arrest - ANSWER - SA node doesn't fire - notice absence of P-wave for a complete cycle (a missed cycle) 11. Sinus arrhythmia - ANSWER all complexes normal but rhythmically irreg - normal finding (esp in young pts) that has to do with breathing (rate: inhale-increase, exhale-decrease) 12. Sinus Bradycardia - ANSWER 60 normal sinus rhythm 13. Sinus Tachycardia - ANSWER 100 (100-150) normal sinus rhythm 14. Wandering atrial pacemaker - ANSWER Hint: try never to pick this - impulse originate from varying points in atria - variation in P wave contour, PR-I, PP-I and thus RR-I 15. P wave vs T wave - ANSWER P generally smaller than T 16. MAT (multifocal atrial tachy) - ANSWER - impulse originates at diff places in atria so P waves diff and intervals might not be consistent - assoc w/ severe pulm dz 17. Atrial Fibrillation - ANSWER A: 350-450 (atria quivering) - irreg-irreg rhythm (R-RI=irreg) **unsure/no P-wave (non-distinguishable)** - irreg rhythm BUT reg QRS! Danger: increase the risk of thromboemoblic events don't convert unless occurring less than 48 hrs, if don't know pt need to be put on thrombolytics) 18. Asystole (LETHAL) - ANSWER Regularity: none Rate: zero P wave: none PRI : none QRS: none QTI: none T wave: none 19. Heart Block 1st Degree AVB - ANSWER Regularity: atrial and ventricular rate are regular Rate: varies depends on underlying rhythm P wave: upright, smooth, round and uniform shape, one for every QRS complex PRI : greater than 0.20 seconds, prolonged but constant QRS: 0.06 to 0.10 seconds QTI: 0.36 to 0.46 seconds T wave: upright, smooth and round uniform shape, normal 20. Heart Block 2nd Degree AVB Type I - ANSWER Regularity: usually irregular, but can look regular but interrupted, a classic sign of Wenckebach is a pattern of grouped beats, with a pause Rate: atrial rate usually 60-100; ventricular rate less than the atrial rate due to the nonconducted beats P wave: upright, smooth, round and uniform shape, BUT not all are followed by a QRS complex PRI : progressively gets longer until you have a P wave without a QRS complex (or a "dropped beat") QRS: 0.06 to 0.10 seconds QTI: 0.36 to 0.46 seconds T wave: upright, smooth and round uniform shape, normal 21. Heart Block 2nd Degree AVB Type II (LETHAL) - ANSWER Regularity: may be regular, irregular or regular but interrupted Rate: atrial rate usually 60-100; ventricular rate less than the atrial rate due to the nonconducted beats, ventricular rate can be very slow P wave: upright, smooth, round and uniform shape, BUT not all are followed by a QRS complex PRI : 0.12 to 0.20 seconds, and constant or "fixed" QRS: 0.06 to 0.10 seconds, usually normal but can be widened QTI: 0.36 to 0.46 seconds T wave: upright, smooth and round uniform shape, normal *Characterized by more P waves than QRS complexes-- this is a dangerous rhythm because with no warning the AV nodes blocks a conduction with no resulting contraction of the ventricles