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| | + | {{Case| |
| | + | |previouspage= Case 1 |
| | + | |previousname= Case 1 |
| | + | |nextpage= Case 3 |
| | + | |nextname= Case 3}} |
| | [[Image:KJcasus3.jpg|thumb| The ECG]] | | [[Image:KJcasus3.jpg|thumb| The ECG]] |
| − | * Following the 7+2 steps:
| + | Try to interprete this ECG using the 7+2 step method |
| − | **Rhythm
| + | [[Answer Case 3|Answer]] |
| − | ***'''This is a regular rhythm and every QRS complex is preceded by a p wave. The p wave is positive in II,III, and AVF and thus originates from the sinus node. Conclusion: sinus rhythm.'''
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| − | **Hartfrequency
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| − | ***'''Use the 'count the squares' method (a bit less than 3 large squares ~> 300-150-100), thus about 110 bpm.'''
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| − | **Conduction (PQ,QRS,QT)
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| − | ***'''PQ-interval=0.16sec (4 small squares), QRS duration=0.10sec, QT interval=320ms'''
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| − | **Hartaxis
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| − | ***'''Positive in I, II, III, and AVF. Thus a normal heart axis.'''
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| − | **P wave morphology
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| − | ***'''The p wave is rather large in II, but does not fulfill the criteria for right atrial dilatation.'''
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| − | **QRS morphology
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| − | ***'''No pathologic Q waves, RsR pattern in V3, but the QRS-duration < 0.12 seconds thus no bundle branch block is present. No left ventricular hypertrofy: S in V1 + R in V5 < 35mm.'''
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| − | **ST morphology
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| − | ***'''ST depressiion in II,III, and AVF and also in V5-V6. ST-elevation in AVL and V1.'''
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| − | **Compare with the old ECG (not available, so skip this step)
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| − | **Conclusion?
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| − | '''Acuut Anteroseptal Myocardial Infarction'''
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| − | {{clr}}
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Revision as of 15:09, 11 November 2008
Try to interprete this ECG using the 7+2 step method
Answer
