Plasma (image) University of Pittsburgh Schools of the Health Sciences Share Print E-Mail Caption Jason Sperry, M.D., UPMC trauma surgeon, holds a bag of plasma. Dr. Perry led a clinical trial that determined that two units of blood plasma given to trauma patients on a medical helicopter boosts their odds of survival by 10 percent. Credit Tim Betler/UPMC Usage Restrictions Release is embargoed until 5 p.m., Wednesday, July 25, 2018. Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.