PERICARDITIS:
Inflammation of the lining around the heart (pericardium).
•ECG characteristics:
•Four (4) Stages on the Electrocardiogram:
1. Diffuse ST segment elevation; possible PR segment depression.
2. Normalization of the ST and PR segment changes above.
3. Diffuse, isolated, symmetrical T wave inversion.
4. Normalization of the T wave changes above.