INTRACRANIAL PRESSURE AND BRAIN INJURY: KEY
CONCEPTS AND MANAGEMENT | VERIFIED QUESTIONS
AND ANSWERS | 100% ACCURATE, A+ GRADED,
GUARANTEED SUCCESS!
What are the three essential volume components of the skull? Answer: Brain tissue,
blood, and cerebrospinal fluid (CSF)
What is the normal range for intracranial pressure (ICP)? Answer: 5 to 15 mmHg
What ICP level is considered abnormal and requires treatment? Answer: >20 mmHg
What is the Monroe-Kellie Hypothesis? Answer: The principle that the cranial cavity is a
fixed volume, and an increase in one component must be compensated by a decrease
in another.
What factors influence intracranial pressure (ICP)? Answer: Arterial pressure, venous
pressure, intraabdominal and intrathoracic pressure, posture, temperature, and blood
gases.
What is cerebral blood flow (CBF)? Answer: Blood in milliliters passing through 100g of
brain tissue in 1 minute.
What is the formula for cerebral perfusion pressure (CPP)? Answer: CPP = MAP - ICP
What is the normal range for cerebral perfusion pressure (CPP)? Answer: 70-100
mmHg
What happens when CPP is less than 50 mmHg? Answer: Brain ischemia and
neuronal death occur.
1
APPHIA - Crafted with Care and Precision for Academic Excellence.
, What is Cushing's reflex? Answer: A physiological response to increased ICP
characterized by increased blood pressure, wide pulse pressure, and bradycardia.
What are the main causes of cerebral edema? Answer: Head injuries, mass lesions,
cerebral infections, vascular insults, and toxic or metabolic conditions.
What are the major types of stroke? Answer: Ischemic and hemorrhagic strokes.
What are modifiable risk factors for ischemic and hemorrhagic stroke? Answer:
Hypertension, obesity, elevated hematocrit, diabetes mellitus, smoking, and excessive
alcohol consumption.
What is the most sensitive indicator of a patient's neurologic status? Answer: Level of
consciousness (LOC)
What is Cushing's triad? Answer: Increased blood pressure, wide pulse pressure, and
bradycardia, indicating brainstem compression.
What ocular signs indicate increased ICP? Answer: CN III compression causing pupil
dilation, sluggish response to light, and inability to move the eye upward.
What is decerebrate posturing? Answer: Rigid extension of both upper and lower
extremities with hyperpronation of forearms.
What complications can arise from increased ICP? Answer: Inadequate cerebral
perfusion, cerebral herniation, and herniation syndromes.
What is the effect of increased CO2 on cerebral blood flow (CBF)? Answer: Increased
CO2 causes cerebral vasodilatation, which increases CBF.
What is the effect of decreased O2 on cerebral blood flow (CBF)? Answer: Decreased
O2 causes cerebral vasodilatation, which increases CBF.
2
APPHIA - Crafted with Care and Precision for Academic Excellence.
CONCEPTS AND MANAGEMENT | VERIFIED QUESTIONS
AND ANSWERS | 100% ACCURATE, A+ GRADED,
GUARANTEED SUCCESS!
What are the three essential volume components of the skull? Answer: Brain tissue,
blood, and cerebrospinal fluid (CSF)
What is the normal range for intracranial pressure (ICP)? Answer: 5 to 15 mmHg
What ICP level is considered abnormal and requires treatment? Answer: >20 mmHg
What is the Monroe-Kellie Hypothesis? Answer: The principle that the cranial cavity is a
fixed volume, and an increase in one component must be compensated by a decrease
in another.
What factors influence intracranial pressure (ICP)? Answer: Arterial pressure, venous
pressure, intraabdominal and intrathoracic pressure, posture, temperature, and blood
gases.
What is cerebral blood flow (CBF)? Answer: Blood in milliliters passing through 100g of
brain tissue in 1 minute.
What is the formula for cerebral perfusion pressure (CPP)? Answer: CPP = MAP - ICP
What is the normal range for cerebral perfusion pressure (CPP)? Answer: 70-100
mmHg
What happens when CPP is less than 50 mmHg? Answer: Brain ischemia and
neuronal death occur.
1
APPHIA - Crafted with Care and Precision for Academic Excellence.
, What is Cushing's reflex? Answer: A physiological response to increased ICP
characterized by increased blood pressure, wide pulse pressure, and bradycardia.
What are the main causes of cerebral edema? Answer: Head injuries, mass lesions,
cerebral infections, vascular insults, and toxic or metabolic conditions.
What are the major types of stroke? Answer: Ischemic and hemorrhagic strokes.
What are modifiable risk factors for ischemic and hemorrhagic stroke? Answer:
Hypertension, obesity, elevated hematocrit, diabetes mellitus, smoking, and excessive
alcohol consumption.
What is the most sensitive indicator of a patient's neurologic status? Answer: Level of
consciousness (LOC)
What is Cushing's triad? Answer: Increased blood pressure, wide pulse pressure, and
bradycardia, indicating brainstem compression.
What ocular signs indicate increased ICP? Answer: CN III compression causing pupil
dilation, sluggish response to light, and inability to move the eye upward.
What is decerebrate posturing? Answer: Rigid extension of both upper and lower
extremities with hyperpronation of forearms.
What complications can arise from increased ICP? Answer: Inadequate cerebral
perfusion, cerebral herniation, and herniation syndromes.
What is the effect of increased CO2 on cerebral blood flow (CBF)? Answer: Increased
CO2 causes cerebral vasodilatation, which increases CBF.
What is the effect of decreased O2 on cerebral blood flow (CBF)? Answer: Decreased
O2 causes cerebral vasodilatation, which increases CBF.
2
APPHIA - Crafted with Care and Precision for Academic Excellence.
