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- Following the 7+2 steps:
- 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.
- Use the 'count the squares' method (a bit less than 3 large squares ~> 300-150-100), thus about 110 bpm.
- Conduction (PQ,QRS,QT)
- PQ-interval=0.16sec (4 small squares), QRS duration=0.10sec, QT interval=320ms
- Positive in I, II, III, and AVF. Thus a normal heart axis.
- P wave morphology
- The p wave is rather large in II, but does not fulfill the criteria for right atrial dilatation.
- QRS morphology
- 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.
- ST morphology
- ST depressiion in II,III, and AVF and also in V5-V6. ST-elevation in AVL and V1.
- Compare with the old ECG (not available, so skip this step)
Acuut Anteroseptal Myocardial Infarction