Median annual wages of cardiovascular technologists and technicians were $47,010 in May 2008. The middle 50 percent earned between $32,800 and $61,580. The lowest 10 percent earned less than $25,510, and the highest 10 percent earned more than $74,760. Median annual wages of cardiovascular technologists and technicians in 2008 were $48,590 in offices of physicians and $46,670 in general medical and surgical hospitals.
Source: Bureau of Labor Statistics, U.S. Department of Labor, Occupational Outlook Handbook, 2010-11 Edition