DY
It is accurate
From NYS dept of health website guidleines for determining brain death.
(i cut some parts to cut it for size and remove some of the technical details, for more details it is freely available on google and of course I would be happy to elaborate.)
Step 4: Apnea Test
Generally, the apnea test is the final step in the determination of brain death, and is performed after establishing the irreversibility and unresponsiveness of coma, and the absence of brainstem reflexes.
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the physician should conduct the apnea test as follows:
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