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After what time the does the ischemic brain of an accident casualty die?

After approx. 4-5 minutes.
After 20 minutes.
After an hour.

The recovery position is deemed safe for the person injured in a road accident because:

it is comfortable for the injured person.
it is stable, it provides a clear airway and prevents the injured person from choking.
it enables the rescuer to perform resuscitation.

How long should you perform cardiac massage and artificial respiration to a person injured in an accident?

For 60 minutes.
Until the person regains their breath or is handed over to a paramedic.
For 5 minutes.

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