What is done where a primary diagnosis for brain damage cannot be reached?

  • Brainstem testing should not be performed when significant diagnostic uncertainty remains
  • Rare occasions occur where the primary diagnosis causing loss of brainstem function cannot be reached despite extensive investigation: (e.g. presumed hypoxic brain injury, cerebral fat embolism or drug overdose):
    • Testing should only be performed after an extended period of clinical observation and support
    • Required to confirm that an irreversible and untreatable underlying cause is present