You've searched: Collection: "ehsl_heal"
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26 RBBB with primary ST-T abnormalities: Precordial leadsRBBB with primary ST-T abnormalities: Precordial leadsKnowledge Weavers ECG
27 Bifascicular block: RBBB + LAFBBifascicular block: RBBB + LAFBKnowledge Weavers ECG
28 PVC with R-on-T - marquettePVC with R-on-T - marquetteKnowledge Weavers ECG
29 PVCs - marquettePVCs - marquetteKnowledge Weavers ECG
30 Right Ventricular Hypertrophy (RVH) & Right Atrial Enlargement (RAE)In this case of severe pulmonary hypertension, RVH is recognized by the prominent anterior forces (tall R waves in V1-2), right axis deviation (+110 degrees), and P pulmonale (i.e., right atrial enlargement). RAE is best seen in the frontal plane leads; the P waves in lead II are >2.5mm in amplitud...Knowledge Weavers ECG
31 ECG intervals and wavesThe P wave represents atrial activation; the PR interval is the time from onset of atrial activation to onset of ventricular activation. The QRS complex represents ventricular activation; the QRS duration is the duration of ventricular activation. The ST-T wave represents ventricular repolarizatio...Knowledge Weavers ECG
32 Atrial flutter with 2:1 AV conductionFlutter waves are best seen in lead V1; one immediately follows the QRS and the other precedes the next QRS. The regular ventricular rate of 150 bpm should always prompt us to condider this diagnosis.Knowledge Weavers ECG
33 Left axis deviation: QRS axis = -45 degreesThere is no isoelectric, but leads aVR and II are the closest to being isoelectric, placing the axis between -30 and -60 degrees. The axis, therefore, is about -45 degrees.Knowledge Weavers ECG
34 Long QT: an ECG marker for sudden cardiac deathLong QT: an ECG marker for sudden cardiac deathKnowledge Weavers ECG
35 Frontal plane QRS axis = 0 degreesFrontal plane QRS axis = 0 degreesKnowledge Weavers ECG
36 Isolated PAC - marquetteIsolated PAC - marquetteKnowledge Weavers ECG
37 Acetyl CoA metabolism -- overviewMajor metabolic sources of acetyl CoA and some of the processes in which it serves as a substrate.Knowledge Weavers Fatty Acids
38 Oleic acid structureOleic acid is a typical monounsaturated fatty acid.Knowledge Weavers Fatty Acids
39 Inferolateral ST segment elevationST Segment elevation with a straight or convex upwards configuration usually means transmural ischemia (or injury) and is seen in the setting of acute myocardial infarction. This ECG finding may also be seen transiently during coronary artery spasm. Unlike ST depression, ST elevation is often loca...Knowledge Weavers ECG
40 A PAC initiates paroxysmal atrial fibrillationThe arrow indicates slight alteration of the ST-T wave by a PAC. The PAC, in turn, falls during the vulnerable period of atrial repolarization and initiates atrial fibrillation. Similar but more catastrophic events happen in the ventricles when PVC's occur during the vulnerable period, i.e. R-on-T...Knowledge Weavers ECG
41 Left Atrial Abnormality & 1st Degree AV BlockThe P-wave is notched, wider than 0.12s, and has a prominent negative (posterior) component in V1 - all criteria for left atrial abnormality or enlargement (LAE). The PR interval >0.20s. Minor ST-T wave abnormalities are also present.Knowledge Weavers ECG
42 3rd degree AV block rx'ed with a ventricular pacemakerIn A the ECG shows complete or 3rd degree AV block with a left ventricular escape rhythm, as evidenced by the upright QRS morphology. In B the artificial right ventricular pacemaker rhythm is shown.Knowledge Weavers ECG
43 Lead Error: V1 & V3 are TransposedIn this normal 12-lead ECG the V1 and V3 chest electrodes are interchanged. Experienced ECG interpreters should be able to spot this lead placement error.Knowledge Weavers ECG
44 PAC and PVC: complete vs. incomplete pausePAC and PVC: complete vs. incomplete pauseKnowledge Weavers ECG
45 Electronic atrial pacing - marquetteElectronic atrial pacing - marquetteKnowledge Weavers ECG
46 Normal sinus rhythm - marquetteNormal sinus rhythm - marquetteKnowledge Weavers ECG
47 Left ventricular PVC'sIn lead V1, these PVC's are positive or anterior in direction indicating probable LV origin with late activation of the right ventricle. The arrow points to the notch on the downstroke of the PVC making its morphology highly unlikely to be an aberrantly conducted supraventricular beat.Knowledge Weavers ECG
48 Junctional tachycardia with exit block: a manifestation of digitalis intoxicationTheladder diagramsays it all: the atria are fibrillating; there is complete heart block in the AV junction; a junctional tachycardia focus is firing at about 130 bpm, but not all junctional impulses reach the ventricles due to 2nd degree exit block.Knowledge Weavers ECG
49 Contraception for women in their later yearsContraception for women in their later reproductive years.Knowledge Weavers Human Reproduction
50 Frontal plane QRS axis = +90 degrees1) Lead I is isoelectric; 2) perpendiculars to lead I are +90 and -90 degrees; 3) leads II, III, aVF are positive; 4) therefore, the axis must be +90 degrees.Knowledge Weavers ECG
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