oliver and given to him transfused. >> the a-type blood mixes with blake's o-type blood. >> it can cause the blood cells to rupture. and when they rupture they can clog up your organs. it can cause kidney failure. it's called the hemolytic reaction. >> that new blood kills blake. >> it was just the most awful, ridiculous scenario in that it could have been 100% prevented. >> 1 out of every 19,000 units of blood is administered incorrectly. know your blood type so if you're getting blood you can check the bag to make sure it's a match. at number 10, getting burned. paramjit singh expects his heart bypass to go smoothly. >> no big deal. i want to go home the same day.