Health Education Assets Library (HEAL)
 
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TitleDescriptionSubjectCollection
26 Ventricular asystole - marquetteVentricular asystole - marquetteKnowledge Weavers ECG
27 Multifocal PVC's - marquetteMultifocal PVC's - marquetteKnowledge Weavers ECG
28 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
29 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
30 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
31 Propionyl CoA carboxylase reactionPropionyl CoA is metabolized by a process that first converts it to D-methylmalonyl CoA. The reaction is catalyzed by propionyl CoA carboxylase,and requires energy in the form of ATP.BiosynthesisKnowledge Weavers Fatty Acids
32 2nd degree AV block, type I (Wenckebach)2nd degree AV block, type I (Wenckebach)Knowledge Weavers ECG
33 Diagram: stages of acute Q-wave MIDiagram: stages of acute Q-wave MIKnowledge Weavers ECG
34 Accelerated junctional rhythmAccelerated junctional rhythmKnowledge Weavers ECG
35 PVC's - marquettePVC's - marquetteKnowledge Weavers ECG
36 Linoleic acid structureLinoleic acid is a typical polyunsaturated fatty acid.Knowledge Weavers Fatty Acids
37 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
38 Atrial fibrillation with moderate ventricular response - MarquetteAtrial fibrillation with moderate ventricular response - MarquetteKnowledge Weavers ECG
39 Ventricular pacing in atrial fibrillation - marquetteVentricular pacing in atrial fibrillation - marquetteKnowledge Weavers ECG
40 Ventricular pacemaker: demand mode functioningVentricular pacemaker: demand mode functioningKnowledge Weavers ECG
41 Ventricular escape beat - marquetteVentricular escape beat - marquetteKnowledge Weavers ECG
42 LAFB: frontal plane leadsLAFB: frontal plane leadsKnowledge Weavers ECG
43 Old infero-posterior MIOld infero-posterior MIKnowledge Weavers ECG
44 Reduction of a 2,4-dienoyl CoAThe reduction of 2,4-dienoyl CoA by NADPH is a step in the oxidation of polyunsaturated fatty acids. It is ironic that a reduction reaction is a required step in a process that is oxidative.Knowledge Weavers Fatty Acids
45 Stearic, oleic and linoleic acid structuresStearic, oleic and linoleic acid structuresKnowledge Weavers Fatty Acids
46 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
47 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
48 Complete oxidation of an odd-chain fatty acid -- overviewThis diagram indicates production of propionyl CoA from an odd-chain fatty acid and the subsequent conversion of propionyl CoA to succinyl CoA, which can be metabolized through the citric (tricarboxylic) acid cycle.BiosynthesisKnowledge Weavers Fatty Acids
49 Anteroseptal MI with RBBB: precordial leadsAnteroseptal MI with RBBB: precordial leadsKnowledge Weavers ECG
50 Cardiac conduction system diagram - marquetteCardiac conduction system diagram - marquetteKnowledge Weavers ECG
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