Is this one of the final researches to be carried out in space beyond instruments in probes and satellites, considering they're going to let the ISS burn up?
High quality CPR includes AED usage. 30 compressions to two ventilations. After 2 minutes of CPR, perform a rhythm check with AED and shock if advised. There are existing robots that do chest compressions for you (Zoll AutoPulse, LUCAS). They would work in space I bet.
