Ruzicka was elevated from AHL Stockton on Thursday.
Ruzicka will likely serve as an emergency depth option heading into Saturday's clash with the Jets but shouldn't be expected to get into the lineup unless one of the forwards sustains an injury. Still, the 22-year-old center has been rolling with the Heat this season, as he's racked up 10 goals and six helpers in 13 minor-league contests.