IBHRE Review Question and answers 2023 verified to pass

IBHRE Review Question and answers 2023 verified to pass AV Node Reentry Tachycardia (AVNRT) - correct answer - accounts for ~60% of arrhythmias presenting as SVT or paroxysmal atrial tachycardia (PAT) - affects all age groups and genders equally - no correlation with heart disease - heart rate 150-250 bpm, palpitations, light-headedness, near-syncope, narrow QRS complex rheobase - correct answer lowest point on a strength duration curve at an infinitely long pulse duration; for cardiac pacing, the rheobase is usually reached between 1-2ms chronaxie time - correct answer pulse width at twice the rheobase value approximates most efficient stimulation pulse duration action potential - correct answer the cellular characteristics of depolarization and repolarization 5 phases (0-4) phase 0 - correct answer depolariza