Health Education Assets Library (HEAL)
 
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TitleDescriptionSubjectCollection
126 Infero-posterior MIInfero-posterior MIKnowledge Weavers ECG
127 Infero-posterior MI & RBBB: Frontal Plane Leads + V1Infero-posterior MI & RBBB: Frontal Plane Leads + V1Knowledge Weavers ECG
128 Infero-posterior MI with RBBBThis is an unusual RBBB because the initial R wave is taller than the R wave in lead V1. This is the clue for true posterior MI. The tall initial R wave in V1 is a pathologic R wave analagous to the pathologic Q wave of an anterior MI.Knowledge Weavers ECG
129 Infero-posterior MI&RBBBDeep Q waves in II, III, aVF plus tall R waves in V1-2 are evidence for this infero-posterior MI. The wide QRS (>0.12s) and RR' complex in V1 are evidence for RBBB. Any time RBBB has an initial R in V1 equal to or greater than the R', true posterior MI must be considered. Q waves in V5-6 suggest a...Knowledge Weavers ECG
130 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
131 Inferoposterior MIInferoposterior MIKnowledge Weavers ECG
132 Inferoposterior MIInferoposterior MIKnowledge Weavers ECG
133 Initiation of beta-oxidationAn acetyl group is transferred from acetyl CoA to the -SH group of the condensing enzyme domain of fatty acyl synthase, forming acetyl-CE. The reaction is catalyzed by the acyltransferase activity of fatty acyl synthase.Knowledge Weavers Fatty Acids
134 Interpolated PVCs - marquetteInterpolated PVCs - marquetteKnowledge Weavers ECG
135 Isochronic ventricular rhythmAn isochronic ventricular rhythm is also called an accelerated ventricular rhythm because it represents an active ventricular focus. This arrhythmia is a common reperfusion arrhythmia in acute MI patients. It often begins and ends with fusion beats and there is AV dissociation. Treatment is usuall...Knowledge Weavers ECG
136 Isolated PAC - marquetteIsolated PAC - marquetteKnowledge Weavers ECG
137 Junctional escape rhythmJunctional escape rhythmKnowledge Weavers ECG
138 Junctional parasystole and pseudo-AV blockThis complicated rhythm strip shows normal sinus rhythm and a competing junctional parasystolic focus. Solid circles indicate junctional premature beats from the parasystolic focus. Open circles indicate non-conducted junctional prematures; the first open circle is a nonconducted junctional prematur...Knowledge Weavers ECG
139 Junctional tachycardia - marquetteJunctional tachycardia - marquetteKnowledge Weavers ECG
140 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
141 LAFB: frontal plane leadsLAFB: frontal plane leadsKnowledge Weavers ECG
142 LBBB and 2nd degree AV block, mobitz type IMobitz II 2nd degree AV block is usually a sign of bilateral bundle branch disease. One of the two bundle branches should be completely blocked; in this example the left bundle is blocked. The nonconducted sinus P waves are most likely blocked in the right bundle which exhibits 2nd degree block. ...Knowledge Weavers ECG
143 LBBB: precordial leadsLBBB: precordial leadsKnowledge Weavers ECG
144 LVHIn this example of LVH, the precordial leads don't meet the usual voltage criteria or exhibit significant ST segment abnormalities. The frontal plane leads, however, show voltage criteria for LVH and significant ST segment depression in leads with tall R waves. The voltage criteria include 1) R in a...Knowledge Weavers ECG
145 LVH & PVCs: Precordial LeadsLVH & PVCs: Precordial LeadsKnowledge Weavers ECG
146 LVH - best seen in the frontal plane leads!LVH - best seen in the frontal plane leads!Knowledge Weavers ECG
147 LVH and many PVCsThe combination of voltage criteria (SV2 + RV6>35mm) and ST-T abnormalities in V5-6 are definitive for LVH. There may also be LAE as evidenced by the prominent negative P terminal force in lead V1. Isolated PVCs and a PVC couplet are also present.Knowledge Weavers ECG
148 LVH with StrainLVH with StrainKnowledge Weavers ECG
149 LVH: limb lead criteriaIn this example of LVH, the precordial leads don't meet the usual voltage criteria or exhibit significant ST segment abnormalities. The frontal plane leads, however, show voltage criteria for LVH and significant ST segment depression in leads with tall R waves. The voltage criteria include 1) R in...Knowledge Weavers ECG
150 LVH: strain pattern + left atrial enlargementLVH: strain pattern + left atrial enlargementKnowledge Weavers ECG
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