The median annual wage of cardiovascular technologists and technicians and vascular technologists was $49,410 in May 2010. The median wage is the wage at which half the workers in an occupation earned more than that amount and half earned less. The lowest 10 percent earned less than $26,610, and the top 10 percent earned more than $77,020.
Because technologists and technicians are sometimes needed to help when physicians diagnose and treat patients in emergencies, some work evenings, weekends, or overnight.
Source: Bureau of Labor Statistics, U.S. Department of Labor, Occupational Outlook Handbook, 2012-13 Edition