Hello, 

Career prospects as a critical care technologist is more bright and flourishing than a Perfusion technologist. 

On finishing this critical technology course you can  are easily be placed in the critical care industry. You can work in hospitals in ICUs, emergency rooms, trauma centres and similar healthcare settings requiring emergency and critical care. Hospitals working in both the private and public sector will be in need of your services. Other places to look for employment are government hospitals, military hospitals, railway hospitals and so on. You can undertake a post graduate program like M.Sc in critical care technology. You may also get to do research work in the field by opting for a doctoral program.

So this, a better career option to go with. 

Good luck!