Final answer:
In acute pericarditis, a possible electrocardiographic finding in most leads is elevated ST segments.
Step-by-step explanation:
Acute pericarditis is the inflammation of the pericardium, the thin sac-like membrane surrounding the heart. The pericardium consists of two layers with a small amount of fluid between them, which allows the heart to move smoothly within the chest.
In acute pericarditis, a possible electrocardiographic finding in most if not all leads is **Elevated ST segments**. An elevation of the ST segment above baseline is often seen in patients with an acute MI, and may appear depressed below the baseline when hypoxia is occurring.