The ECG findings of hypercalcemia include:

1. A shortened QT interval
2. A shortened ST segment
3. Osborne Waves

References:

1. Surawicz B et al. ACC/AHA recommendations for the standardization and interpretation of the electrocardiogram. Circulation. 2009;119:e235-240.

2. Chou's Electrocardiography in Clinical Practice: Adult and Pediatric, 6e

By Steven Lome