1. Determine rhythm: Sinus / no
2. Determine the frequency / speed: Normal tachikardi / bradycardia
3. Determine the axis: Normal / RAD / LAD
4. Value of P waves: Normal / no
5. Calculate PR interval: Normal / elongated / shortened
6. Value of Q waves: Normal / Pathological
7. Calculate the QRS complex: Normal / wide
8. Value of ST segment: isoelectric / elevation / depression
9. Value of T wave: Normal / Inverted / high
10. Watch for signs: hypertrophy / ischemia / infarction
11. Conclusion / Diagnosis
Figure A Normal ECG
Measurements in paper Electrocardiogram
On paper there are ECG size boxes in millimeters (mm) where:
- A small box is 1 mm x 1 mm
- One box is size 5 mm x 5 mm
Generally in any five box line is there is one sign that shows an EKG paper length is 5 x 5 mm = 25 mm
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