Health Education Assets Library (HEAL)
 
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TitleDescriptionSubjectCollection
201 Extensive anterior/anterolateral MI: precordial leadsExtensive anterior/anterolateral MI: precordial leadsKnowledge Weavers ECG
202 LVH: strain pattern + left atrial enlargementLVH: strain pattern + left atrial enlargementKnowledge Weavers ECG
203 Ventricular asystole - marquetteVentricular asystole - marquetteKnowledge Weavers ECG
204 Multifocal PVC's - marquetteMultifocal PVC's - marquetteKnowledge Weavers ECG
205 Atrial flutter with 2:1 AV conductionIn this example of atrial flutter with 2:1 AV conduction the flutter waves are very hard to see. Atrial flutter with 2:1 block must be considered, however, because the heart rate is about 150 bpm. A careful look at V1 shows the two flutter waves for each QRS complex complex. One flutter wave imme...Knowledge Weavers ECG
206 Ventricular parasystoleIn ventricular parasystole, non-fixed coupled PVC's occur at a common inter-ectopic interval. Fusion beats, indicated by arrows, are often seen. Fusions occur when the sinus impulse entering the ventricles find the ventricles already partially depolarized by the parasystolic focus.Knowledge Weavers ECG
207 Atrial flutter with 2:1 and 4:1 conduction and rate dependent LBBBIn this example of atrial flutter with variable AV conduction, the faster rates are associated with rate-related LBBB. Don't confuse this for ventricular tachycardia.Knowledge Weavers ECG
208 2nd degree AV block, type I (Wenckebach)2nd degree AV block, type I (Wenckebach)Knowledge Weavers ECG
209 Diagram: stages of acute Q-wave MIDiagram: stages of acute Q-wave MIKnowledge Weavers ECG
210 Accelerated junctional rhythmAccelerated junctional rhythmKnowledge Weavers ECG
211 PVC's - marquettePVC's - marquetteKnowledge Weavers ECG
212 2nd degree AV block with junctional escapes and capturesSecond degree AV block is present; conducted beats are identified by those QRS's that terminate shorter cycles than the junctional escape cycle; i.e., the 3rd and probably the 4th QRS's are captures; the other QRS's are junctional escapes.Knowledge Weavers ECG
213 Atrial fibrillation with moderate ventricular response - MarquetteAtrial fibrillation with moderate ventricular response - MarquetteKnowledge Weavers ECG
214 Ventricular pacing in atrial fibrillation - marquetteVentricular pacing in atrial fibrillation - marquetteKnowledge Weavers ECG
215 Ventricular pacemaker: demand mode functioningVentricular pacemaker: demand mode functioningKnowledge Weavers ECG
216 Ventricular escape beat - marquetteVentricular escape beat - marquetteKnowledge Weavers ECG
217 LAFB: frontal plane leadsLAFB: frontal plane leadsKnowledge Weavers ECG
218 Old infero-posterior MIOld infero-posterior MIKnowledge Weavers ECG
219 2nd degree AV block, type IThe 3 rules of classic AV Wenckebach are: 1. decreasing RR intervals until pause; 2. the pause is less than preceding 2 RR intervals; and 3. the RR interval after the pause is greater than the RR interval just prior to pause. Unfortunately, there are many examples of atypical forms of Wenckebach wh...Wenckebach AV BlockKnowledge Weavers ECG
220 Atrial echosIn this example a typical Wenckebach sequence is interrupted by what looks like a PAC - indicated by red arrows. Atrial echos are more likely, however, because the preceding beat has a long PR interval, a condition that facilitates reentry and echo formation.Knowledge Weavers ECG
221 Anteroseptal MI with RBBB: precordial leadsAnteroseptal MI with RBBB: precordial leadsKnowledge Weavers ECG
222 Cardiac conduction system diagram - marquetteCardiac conduction system diagram - marquetteKnowledge Weavers ECG
223 ST segment depression: precordial leadsST segment depression: precordial leadsKnowledge Weavers ECG
224 Idioventricular escape rhythmIdioventricular escape rhythmKnowledge Weavers ECG
225 Unifocal PVCs - marquetteUnifocal PVCs - marquetteKnowledge Weavers ECG
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