What causes lack of oxygen to the brain?

A condition in which there is a decrease of oxygen supply to the brain even though there is adequate blood flow is called Cerebral Hypoxia.

Conditions that lead to cerebral hypoxia are:

a. Drowning

b. Strangling

c. Choking

d. Suffocation

e. Cardiac arrest

f. Head trauma

g. Carbon monoxide poisoning

h. Complications of general anesthesia

The methods of restoration depend on the underlying cause of the hypoxia. However, basic life support systems and damage control measures should be involve and have to be in place.

Restoration of oxygen to the brain is the first goal of treatment. To secure the airway, provide mechanical ventilation or inhaled oxygen.

To support blood pressure and heart rate you need to provide fluids, blood products or medications and lastly, provide medications for suppressing seizures.

source mdinfo