EKG Questions and Answers with Verified Solutions

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EKG Questions and Answers with Verified Solutions The SA node has an inherent rate of __-__bpm. ✔✔60-100 The AV node has an inherent rate of __-__bpm. ✔✔40-60 The perkinje fibers in the ve... ntricles have an inherent rate of __-__bpm. ✔✔20-40 The "ready" or "resting" state. ✔✔polarization The "firing" state or contraction. ✔✔depolarization The return to "rest". ✔✔repolarization The transportation of K, Na, and Ca into/out of the cardiac cell result in _____ formation. ✔✔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. ✔✔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 ___. ✔✔6, 10 The ___ ___ represents atrial contraction on an EKG strip. ✔✔P wave The ___ ___ ___ represents the time taken for the inpulse to travel from the SA to AV node. Ideally 0.12-0.20 seconds. ✔✔PR Interval The ___ complex represents ventricular contraction. ✔✔QRS The ___ segment represents the time between ventricular contraction and repolarization; this is when the ventricles completely empty. Ideally is <0.12 seconds. ✔✔ST The ___ ___represents ventricular repolarization. ✔✔T wave Rhythm: regular Rate: 60-100 P-waves: present/upright, w/QRS PRI: 0.12-0.20 QRS: <0.12 ✔✔Normal sinus rhythm Rhythm: irregular Rate: 80 or less P-waves: present/upright, w/QRS PRI: 0.12-0.20 QRS: <0.12 ✔✔Sinus arrhythmia There is no true NSR; everyone will have slight arrhythmias due to _____. ✔✔breathing Rhythm: slightly irregular Rate: 60-100 P-waves: present/upright, w/QRS PRI: 0.12-0.20, slightly varies QRS: <0.12 ✔✔wandering pacemaker (WAP) Rhythm: unpredictable Rate: 80 or less P-waves: present/upright, w/QRS PRI: 0.12-0.20 QRS: <0.12 ✔✔Sinus pause / arrest Rhythm: regular Rate: less than 60 P-waves: present/upright, w/QRS [Show More]

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