Question

Confirmatory test that is a reliable indicator of brain death?

1) Apnea test with a pCO₂ less than 40
2) Electromyography
3) 4-vessel cerebral angiography
4) CT scan of the brain

Answer 1

The Apnea test with a pCO₂ less than 40 is a reliable indicator of brain death.

Step-by-step explanation:

The confirmatory test that is a reliable indicator of brain death is the Apnea test with a pCO₂ less than 40. The Apnea test measures the carbon dioxide levels in the blood during a period of controlled breathing cessation. A pCO₂ less than 40 mmHg after the test is a strong indication of brain death.