Intracranial Pressure

Question 1

Cerebral oxygenation depends on ?

Answer 1

Cerebral blood flow which depends on cerebral perfusion pressure and cerebral vascular resistance…

Question 2

Cerebral perfusion pressure is

Answer 2

Mean arterial pressure divided on intracranial pressure

Question 3

What happened if the icp increased very much

Answer 3

Cerebral perfusion pressure will reduced and the cerebral oxygenation will decrease

Question 4

What is the icp auto regulation in the brain

Answer 4

A large change in the systemic blood pressure (50-150) will cause mild change in the cerebral blood flow

-below 50 will lead to ischemia
-above 150 willlead to hemorrhage

Question 5

What is the main factor that control the auto regulation process

Answer 5

Cerebral vascular resistance

Question 6

Icp inside the brain is formed by the pressure of 3types of fluids which are

Answer 6

Brain parenchyma fluids -1400 ml
Cerebral blood -150
Cerebrospinal fluid -150 ml