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Cardiac arrest since neurological event is checked if the donor experienced a cardiac arrest during the terminal event.
What is no. In the case of every donor who has had a cardiac arrest, you need to determine if the brain injury occurred because of the arrest, or did the arrest occur after the incident that caused the brain injury.
UNOS is looking for the "Yes" only if the arrest occurred after the primary event causing the brain injury.
In the case of a donor who suffers brain injury as a result of an arrest, this should be checked no.