The Supreme Court on Tuesday said that it will seek expert opinion from AIIMS doctors on whether there is a need to conduct tests such as electroencephalogram (EEG) and angiogram to declare someone brain dead. The two-judge bench, hearing a case on alleged malpractices in brain death certification by Kerala-based medic and activist S Ganapathy, said that it will ask the head of AIIMS’s neurology department to constitute a committee to provide its views on the safety and viability of these tests. Ganapathy alleged that patients who may not be brain dead are declared so to facilitate organ donation. He added that the current apnea test done to certify brain death can be subjective and the legal mandate requiring that the test be videographed is not followed often. What is brain death, and the protocol as well as challenges in certifying someone as brain dead? We explain. What is brain death?…