Basic Dysrhythmia Recognition
Copyright © 2006 by Mosby Inc. All rights reserved. Copyright © 2006 by Mosby Inc. All rights reserved. Copyright © 2006 by Mosby Inc. All rights reserved. Sinus rhythm with first-degree AV block, ST-segment depression ● Ventricular rhythm Regular ● Ventricular rate 68/min ● Atrial rhythm Regular ● Atrial rate 68/min ● PRI: 0.28 sec ● QRS: 0.06 sec Copyright © 2006 by Mosby Inc. All rights reserved. Copyright © 2006 by Mosby Inc. All rights reserved. Second-degree AV block, type I ● Ventricular rhythm Irregular ● Ventricular rate 38 to 75/min ● Atrial rhythm Regular ● Atrial rate 75/min ● PRI: Lengthening ● QRS: 0.06 to 0.08 sec Copyright © 2006 by Mosby Inc. All rights reserved. Copyright © 2006 by Mosby Inc. All rights reserved. Idioventricular rhythm (IVR) (ventricular escape rhythm) ● Ventricular rhythm Regular ● Ventricular rate 40/min ● Atrial rhythm None ● Atrial rate None ● PRI: None ● QRS: 0.18 sec Copyright © 2006 by Mosby Inc. All rights reserved. Copyright © 2006 by Mosby Inc. All rights reserved. Sinus tachycardia with uniform PVCs ● Ventricular rhythm Regular except for events ● Ventricular rate 107/min (sinus beats) ● Atrial rhythm Regular except for events ● Atrial rate 107/min (sinus beats) ● PRI: 0.20 sec (sinus beats) ● QRS: 0.08 sec (sinus beats) Copyright © 2006 by Mosby Inc. All rights reserved. Copyright © 2006 by Mosby Inc. All rights reserved. Sinus rhythm with a wide QRS, ST-segment depression ● Ventricular rhythm Regular ● Ventricular rate 94/min ● Atrial rhythm Regular ● Atrial rate 94/min ● PRI: 0.18 sec ● QRS: 0.12 sec (wide, probably due to RBBB) Copyright © 2006 by Mosby Inc. All rights reserved. Copyright © 2006 by Mosby Inc. All rights reserved. Atrial flutter ● Ventricular rhythm Irregular ● Ventricular rate 75 to 107/min ● Atrial rhythm Unable to determine ● Atrial rate Unable to determine ● PRI: Unable to determine ● QRS: 0.08 sec Copyright © 2006 by Mosby Inc. All rights reserved.
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