major setback, prayers needed!

Today started out good, I talked to Mark this morning around 9am and he said he had a good breakfast, got to shower and shave and finally got rid of that goatee that was catching all the crumbs. He had some speech therapy and then on to physical therapy. They taught him how to get around in his wheel chair with his left foot and even got him to stand with a cane. After that he said, that he was a bit tired and asked to sit down. Once he sat, he collapsed and went into cardiac arrest. The emergency team went into action and got the paramedics and started CPR. His heart did stop while at the rehab hospital and again right when he reached the ER. He's currently on a ventilator and is sedated with all the tubes, bells and whistles. They are trying to figure out what happened and doing all sorts of tests to try and figure out what happened. He is having myopic? bursts (similar to seizures) that are happening every few seconds that they are trying to control. He's had echo cardiagrams, ekgs, blood tests and all sorts of things. So far vitals are good, lungs are clear. We're waiting to see if there is heart damage, possible clot or other brain function issues. We're currently at Western Medical Center waiting for results. He will keep the breathing tube in for tonight for sure. There may be an MRI tonight or tomorrow as well. We're in a wait and see situation right now. Quite a big change from playing dominos last night!! Prayers please!