Don't know if they're still doing it this way, hopefully they've progressed past it. I had a quad in 88, when they're working on your heart. Your blood is being circulated, oxygenated, pumped via a machine.
To keep everything running smooth, mass quantities of an anti-coagulant is added to your blood. The drug of choice is HEPARIN, 1 x 100,000 are allergic to it. It CAN F*CK YOU UP BIG TIME.
I should be so lucky at LOTTO
There's no such thing as Bad Weather, only unsuitable clothing