In brain death 1) Apnoea 2) Loss of cranial reflexes ( papillary reflex to light, loss of oculo cephalic reflex, corneal reflex ) 3) 2 EEGs taken in space of 24 hours showing no electrical activity. There are many other tests like nuclear scan, angiography , for brain death, but decision is made clinically, agreed by 2 neurologists, examining the patient independently.
Thank you doctor
Brain death is not the same as coma, because someone in a coma is unconscious but still alive. Brain death occurs when a critically ill patient dies sometime after being placed on life support. This situation can occur after, for example, a heart attack or stroke. Coma is a state of deep unconsciousness that lasts for an indeterminate length of time. While in this state, the brain continues to emit electric impulsive signals.... Brain death is a clinical term, diagnosed only after a series of tests have been performed on the patient to determine whether they are able to respond to external stimulli.
Corneal reflex, light reflex absent in brain dead patients.doll's eye present.eeg no activity.

Cases that would interest you