EKG STUDY EXAM QUESTIONS.

EKG STUDY EXAM QUESTIONS. The SA node has an inherent rate of __-__bpm. - CORRECT ANSWER 60-100 The AV node has an inherent rate of __-__bpm. - CORRECT ANSWER 40-60 The perkinje fibers in the ventricles have an inherent rate of __-__bpm. - CORRECT ANSWER 20-40 The "ready" or "resting" state. - CORRECT ANSWER polarization The "firing" state or contraction. - CORRECT ANSWER depolarization The return to "rest". - CORRECT ANSWER repolarization The transportation of K, Na, and Ca into/out of the cardiac cell result in _____ formation. - CORRECT ANSWER Impulse To determine the rate of a regular EKG strip, you can divide ___ by the number of large boxes or divide ___ by the number of small boxes. - CORRECT ANSWER 300, 1500 To determine an approximate rate for an irregular EKG strip, count the number of QRS or P complexes in a ___ second strip and multiply by ___. - CORRECT ANSWER 6, 10 The ___ ___ represents atrial contraction on an EKG strip. - CORRECT ANSWER P wave The ___ ___ ___ represents the time taken for the inpulse to travel from the SA to AV node. Ideally 0.12-0.20 seconds. - CORRECT ANSWER PR Interval The ___ complex represents ventricular contraction. - CORRECT ANSWER QRS The ___ segment represents the time between ventricular contraction and repolarization; this is when the ventricles completely empty. Ideally is 0.12 seconds. - CORRECT ANSWER ST The ___ ___represents ventricular repolarization. - CORRECT ANSWER T wave Rhythm: regular Rate: 60-100 P-waves: present/upright, w/QRS PRI: 0.12-0.20 QRS: 0.12 - CORRECT ANSWER Normal sinus rhythm Rhythm: irregular Rate: 80 or less P-waves: present/upright, w/QRS PRI: 0.12-0.20