EKG Rhythms Questions and answers 100% VERIFIED

sinus rhythm - ANSWERnormal rhythm sinus bradycardia - ANSWERHR: 60 regular regular p waves normal pr and qrs intervals sinus tachycardia - ANSWERHR: 101-160 regular regular p waves normal pr and qrs intervals sinus arrythmia - ANSWERHR: varies with respiratory pattern irregular in a repetitive pattern regular p waves normal pr and qrs intervals sinus arrest - ANSWERHR: occurs at any HR regular but interrupted regular p waves before pause normal pr and qrs intervals sinus block (sinus exit block) - ANSWERHR: occurs at any heart rate regular but interrupted regular p waves before and after pause normal pr and qrs intervals wandering atrial pacemaker - ANSWERHR: mean rate: 100 (50's or 60's) irregular at least 3 different p waves pr interval varies normal qrs interval multifocal atrial tachycardia - ANSWERHR: mean rate: 100 irregular pr interval varies normal qrs interval premature atrial contraction (pac) - ANSWERHR: occurs at any rate regular but interrupted p wave are shaped differently than sinus (may be hidden in the preceding t wave) intervals: normal (qrs will be absent after nonconducted pac) paroxysmal atrial tachycardia - ANSWERHR: 160-250 regular- but it interrupts another rhythm p wave will be shaped the same- different from sinus intervals normal atrial flutter - ANSWERHR: 250-350 regular if the conduction ratio (flutter waves to qrs complexes) is constant; irregular if conduction ratio varies p waves not present intervals: PR not measured- qrs normal atrial fibrillation - ANSWERHR: 350-700