Hugh Calkins, M.D. performs an ablation procedure in one of the four electrophysiology labs in the Sheikh Zayed Tower.All of the laboratories and operating rooms in the Sheikh Zayed Tower have state-of-the-art technology. A hybrid operating room can serve as a catheterization lab or a cardiac operating room; this allows for flexibility of treatment based on the needs of each patient. Large screens and computer technology allow for broadcasting of procedures, which provides learning opportunities to medical students across Johns Hopkins regardless of their location.