The Physics of Negative Pressure

For perfusionists, few moments carry as much weight as sitting for a certification exam that can shape the trajectory of an entire career. The Perfusion Certification Examination Prep Course by Perfusion.com was created to ease that pressure, transforming uncertainty into structured preparation and confidence. Developed with insight from educators and practicing clinicians, the course is designed not just as a study aid, but as a professional safety net. At the center of its development is veteran perfusionist and educator Ben Greenfield, whose vision helped shape the course into a resource with worldwide impact.