SIR MERE PITHA ME BAHUT DARD RAHETA HAI

patient would need cardiopulmonary by pass as it is a case of multiple blockages. survival rate of CABG is 90-95%.

No, it is not safe to smoke or take any kind of drungs when you are unwell. If may have extensive adverse effects as your immunity is already low.

Yes, blood donation is good for health. Some studies have shown a decrease in Cancer risk, as well as decrease in the damage to the liver and pancreas in the long run. One should definately donate blood, ofcourse after the entire pre-requisites are cleared.