Telemetry Test Questions with verified solutions 2023/2024

Telemetry Test QuestionsOrder of Conduction - correct answer SA node--> intr aatrial pathways--> AV node--> Bundle of HIS-->left & right bundle branches--> purkinje fibers Irritability - correct answer When the AV junction or ventricle speed up and take over as pacemaker; become faster than SA node Escape - correct answer If the SA node fails as pacemaker or it's rate drops below the normal range, the AV junction would probably take over. Safety mechanism/fail safe Sympathetic branch - correct answer Affects both the atria and ventricles. Increases HR, conduction, and irritability P wave represents - correct answer Atrial depolarization PRI - correct answer 0.12-0.20 seconds Represents both atrial depolarization & delay in AV node QRS - correct answer Less than 0.12 seconds Ventricular depolarization Absolute refractory period - correct answer All the cells can't respond to any stimulus; encompasses the QRS and the first part of the T wave 3 drugs that can prolong QT interval - correct answer Lidocaine, Amiodarone, digoxin, haldol T wave represents - correct answer Ventricular repolarization When is a pacemaker used - correct answer Post-op cardiac surgery, for tachydysrhythmias, for effects of medications What arrhythmias may require a pacemaker - correct answer Symptomatic AV blocks: -second degree type I -second degree type II -third degree heart blocks Symptomatic sinus node dysfunction: -bradycardia -sinus arrest -sinus block -sick sinus syndrome