Ebook ECG workout-Exercises in arrhythmia interpretation (6th edition): Part 2
➤ Gửi thông báo lỗi ⚠️ Báo cáo tài liệu vi phạmNội dung chi tiết: Ebook ECG workout-Exercises in arrhythmia interpretation (6th edition): Part 2
Ebook ECG workout-Exercises in arrhythmia interpretation (6th edition): Part 2
Ventricular arrhythmias and bundle-branch blockOverviewTile three preceding chapters have focused on supraventricular arrhythmias. Supraventricular ar Ebook ECG workout-Exercises in arrhythmia interpretation (6th edition): Part 2rrhythmias refer to those rhythms that originate above the bundle branches and include the sinus, atrial, and junctional rhythms. The electrical impulse produced by supraven tricular rhythms follows the normal conduction pathway, resulting in simultaneous depolarization of the right and let! ventric Ebook ECG workout-Exercises in arrhythmia interpretation (6th edition): Part 2les. The resulting QRS complex is narrow (0.10 second or less in duration). Ventricular beats and rhythms I Figure 9 1) originate below the bundle ofEbook ECG workout-Exercises in arrhythmia interpretation (6th edition): Part 2
His in a pacemaker site in either the right or left ventricle. When impulses arise in the ventricles, the impulse does not enter the normal conductionVentricular arrhythmias and bundle-branch blockOverviewTile three preceding chapters have focused on supraventricular arrhythmias. Supraventricular ar Ebook ECG workout-Exercises in arrhythmia interpretation (6th edition): Part 2ed simultaneously and the stimulus spreads through the ventricles in an aberrant manner, resulting in a wide QRS complex of 0.12 second or greater.Since ventricular depolarization is abnormal, ventricular repolarization will also be abnormal, resulting in changes in the ST segments and T waves. The Ebook ECG workout-Exercises in arrhythmia interpretation (6th edition): Part 2ST segments and T waves will slope in the opposite direction from the main QRS deflection (if the ectopic QRS complex is predominantly negative, lhe SEbook ECG workout-Exercises in arrhythmia interpretation (6th edition): Part 2
T segment is usually elevated and the T wave positive: if the ectopic QRS complexis predominantly positive, the ST segment is usually depressed and thVentricular arrhythmias and bundle-branch blockOverviewTile three preceding chapters have focused on supraventricular arrhythmias. Supraventricular ar Ebook ECG workout-Exercises in arrhythmia interpretation (6th edition): Part 2ular tachycardia (VT). ventricu lar fibrillation (VF), idioventricular rhythm, accelerated idi ©ventricular rhythm, and ventricular standstill. All of these rhythms are associated with a wide QRS complex (except VF and ventricular standstill, which do not have QRS complexes). Because the ventricles Ebook ECG workout-Exercises in arrhythmia interpretation (6th edition): Part 2are the least efficient of the heart's pacemakers, most of these rhythms are lor have the potential to be) life threatening and demand prompt recog niEbook ECG workout-Exercises in arrhythmia interpretation (6th edition): Part 2
lion and treatment.The electrical impulse in bundle-branch block originates in the sinus node, not in ventricular tissue, but a discussion of bundle bVentricular arrhythmias and bundle-branch blockOverviewTile three preceding chapters have focused on supraventricular arrhythmias. Supraventricular ar Ebook ECG workout-Exercises in arrhythmia interpretation (6th edition): Part 2e intraventricular conduction system consists of the right bundle branch and the left main bundle branch, which divides into two fascicles: an anterior fascicle and a posterior fascicle. Block may occur in any part of this conduction system. Normally, the electrical impulses travel throughIdioventri Ebook ECG workout-Exercises in arrhythmia interpretation (6th edition): Part 2cular rhythmAccelerated idicrventricubr rhythmPremature yentricular contractionVentricular tachycardiaVentricular i'brillationBundle-branch blockFigurEbook ECG workout-Exercises in arrhythmia interpretation (6th edition): Part 2
e 9-1. Ventricular arrhythmias and bundle-branch Week197198 Ventricular arrhythmias and bundle-branch blockthe right bundle branch and the left bundleVentricular arrhythmias and bundle-branch blockOverviewTile three preceding chapters have focused on supraventricular arrhythmias. Supraventricular ar Ebook ECG workout-Exercises in arrhythmia interpretation (6th edition): Part 2nd a QRS duration of 0.10 second or less. When one of the bundle branches is blocked, the electrical impulse trawls down the intact bundle, depolarizing that ventricle first, then the impulse progresses through the interventricular septum to depolarize die other ventricle. Depolarization of one vent Ebook ECG workout-Exercises in arrhythmia interpretation (6th edition): Part 2ricle before die other is called sequential depolarization. Depolarization of the ventricles is delayed, resulting in a wide QRS complex of 0.12 seconEbook ECG workout-Exercises in arrhythmia interpretation (6th edition): Part 2
d or greater. The presence of a bundle branch block I Figures 9-2 through 9-4 and Box 9-1) can be recognizedBox 9-1.Bundle-branch block: Identifying EVentricular arrhythmias and bundle-branch blockOverviewTile three preceding chapters have focused on supraventricular arrhythmias. Supraventricular ar Ebook ECG workout-Exercises in arrhythmia interpretation (6th edition): Part 2 second or greater)by a monitoring lead. Differentiating between right and left bundle branch block requires a 12 lead electrocardiogram (ECG).ÌÌÌSÌÌÌSÌÌÌgjịịgjÌÌSÌÌÌBỈÌÌigỉÌÌSỊịịỊgỊịịỊgỊÌÌigỉÌÌigÌÌgjjgÌÌÌSÌÌÌSÌÌÌSÌÌịSịÌÌSÌÌÌSÌÌÌBiÌÌSỊịịgỊịịỊgỊịịỊgỊÌÌSÌÌÌSÌÌjgj:::::::: ------- ---------------------- Ebook ECG workout-Exercises in arrhythmia interpretation (6th edition): Part 2--------------------------------------------------------:::------------------- ---::::::::::::::::Figure 9-2. Normal sinus rhythm with bundle-branch bEbook ECG workout-Exercises in arrhythmia interpretation (6th edition): Part 2
lock.Rhythm:Regular (off by 2 squares)Rate:60 to 65 beats/minutep waves:SinusPR interval:0.16 to 0.20 secondVentricular arrhythmias and bundle-branch blockOverviewTile three preceding chapters have focused on supraventricular arrhythmias. Supraventricular arVentricular arrhythmias and bundle-branch blockOverviewTile three preceding chapters have focused on supraventricular arrhythmias. Supraventricular arGọi ngay
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