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Title | Description | Subject | Collection |
26 |
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Ventricular asystole - marquette | Ventricular asystole - marquette | | Knowledge Weavers ECG |
27 |
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Multifocal PVC's - marquette | Multifocal PVC's - marquette | | Knowledge Weavers ECG |
28 |
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Atrial flutter with 2:1 AV conduction | In 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 |
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Ventricular parasystole | In 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 |
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Atrial flutter with 2:1 and 4:1 conduction and rate dependent LBBB | In 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 |
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Propionyl CoA carboxylase reaction | Propionyl 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. | Biosynthesis | Knowledge Weavers Fatty Acids |
32 |
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2nd degree AV block, type I (Wenckebach) | 2nd degree AV block, type I (Wenckebach) | | Knowledge Weavers ECG |
33 |
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Diagram: stages of acute Q-wave MI | Diagram: stages of acute Q-wave MI | | Knowledge Weavers ECG |
34 |
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Accelerated junctional rhythm | Accelerated junctional rhythm | | Knowledge Weavers ECG |
35 |
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PVC's - marquette | PVC's - marquette | | Knowledge Weavers ECG |
36 |
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Linoleic acid structure | Linoleic acid is a typical polyunsaturated fatty acid. | | Knowledge Weavers Fatty Acids |
37 |
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2nd degree AV block with junctional escapes and captures | Second 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 |
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Atrial fibrillation with moderate ventricular response - Marquette | Atrial fibrillation with moderate ventricular response - Marquette | | Knowledge Weavers ECG |
39 |
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Ventricular pacing in atrial fibrillation - marquette | Ventricular pacing in atrial fibrillation - marquette | | Knowledge Weavers ECG |
40 |
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Ventricular pacemaker: demand mode functioning | Ventricular pacemaker: demand mode functioning | | Knowledge Weavers ECG |
41 |
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Ventricular escape beat - marquette | Ventricular escape beat - marquette | | Knowledge Weavers ECG |
42 |
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LAFB: frontal plane leads | LAFB: frontal plane leads | | Knowledge Weavers ECG |
43 |
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Old infero-posterior MI | Old infero-posterior MI | | Knowledge Weavers ECG |
44 |
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Reduction of a 2,4-dienoyl CoA | The 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 |
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Stearic, oleic and linoleic acid structures | Stearic, oleic and linoleic acid structures | | Knowledge Weavers Fatty Acids |
46 |
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2nd degree AV block, type I | The 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 Block | Knowledge Weavers ECG |
47 |
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Atrial echos | In 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 |
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Complete oxidation of an odd-chain fatty acid -- overview | This 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. | Biosynthesis | Knowledge Weavers Fatty Acids |
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Anteroseptal MI with RBBB: precordial leads | Anteroseptal MI with RBBB: precordial leads | | Knowledge Weavers ECG |
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Cardiac conduction system diagram - marquette | Cardiac conduction system diagram - marquette | | Knowledge Weavers ECG |