How much can hospitals charge for blood transfusions?

$$$: The cost of obtaining, processing, doing perhaps 20 high-power dna tests for safety, typing, storing, transporting, and testing is enormous even for a single unit. We pathologists run the blood bank, and there's a saying that we're the only business people in a town who work hard to reduce demand for our product. It's costly, but rightly used, lifesaving. Health and friendship.