li>Current Basic Life Support (BLS) required, either a certification from an American Heart Association (AHA) BLS for Healthcare Providers (or AHA recognized equivalent) or an American Red Cross CPR/AED for Professional Rescuer and Healthcare Provider. Providing the highest quality of care, they treat an ever-widening range of conditions inside the body from outside the body by inserting various small instruments or tools, such as catheters or wires, with the use of various x-ray and imaging techniques (i.e., CT scanners, MRI scanners, ultrasound scanners).