Guest Host: Mark McDonald

It’s a life-saving resource used in every emergency room in America. Yet blood is a product with a short expiration date. And now new evidence suggests that the longer we hold on to it, the more unreliable it may become. Researchers recently found that blood begins to lose its ability to open up vessels almost as soon as it’s donated. We’ll look at the implications of that finding and what it might mean for hospital policies on storing and using blood.


  • Timothy McMahon Associate Professor of Medicine, Duke University and Durham V-A Medical Center.

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