For an individual to be pronounced dead, one has to have undergone a complete impede of all body functions. For instance, circulatory, respiratory and the brain should have completely stopped performing their functions though the pronouncement should be per the set medical standards.
An individual with irreversible cessation of circulatory and respiratory functions should be pronounced dead. Clinical examination should prove that there is no responsiveness, heart beat and respiratory effort. This however is done through an observational period where there has been a slow cause of death which resulted in the failure of the cardiac activities or where there has been a sudden death of an individual and the necessary resuscitative measures have been undertaken to establish any cardiovascular responsiveness.