ICP monitoring Flashcards
. All of the following are functions of cerebrospinal fluid (CSF) except:
a. Buoyancy
b. Protection
c. Repair damaged tissue
d. Chemical stability
repair damaged tissues
Which of the following can cause an increase in intracranial pressure?
a. Hyperventilation
b. Decreased venous pressure
c. Cerebrospinal fluid drainage
d. Brain swelling
brain swelling
Normal intracranial pressure is
a. 80-120 mmHg
b. 0-100 mmHg
c. 80-100 mmHg
d. 0-15 mmHg
0-15 mmHg
Which of the following are common ways to measure intracranial pressure (Select all that apply)?
a. Infra-red light b. Fluid-filled transducer c. Fiberoptic cable d. Ultrasound
fluid-filled transducer and fiberoptic cable
An external ventriculostomy catheter to monitor intracranial pressure is inserted where in the brain?
a. Subarachnoid space b. Lateral ventricle c. Epidural space d. Brain tissue
lateral ventricle
. What are the 3 components of the Monro-Kellie Doctrine (Select all that apply)?
a. Oxygen
b. Blood
c. Brain Tissue
d. Cerebral spinal fluid
blood, brain tissue, CSF
Which of the following would be a major concern when using the ventriculostomy catheter (invasive monitoring), to measure intracranial pressure?
a. Risk for infection b. Loss of blood c. Hyperglycemia d. High sodium levels
risk for infection
Which of the following is NOT a function of the cerebral spinal fluid (CSF)?
a. Protects and hold the brain and spinal cord in place b. Controls the pressure inside the skull c. Nourishes the brain and flushes out waste materials d. Carries electrical impulses among neurons
carries electrical impulses
Name two contraindications for placement of an invasive mode of Intracranial Pressure monitoring.
bleeding disorders, scalp infection
Describe what happens when someone experiences an increased intracranial pressure (ICP).
as an increase takes place it can lead to insufficient blood flow which can result in ischemia, additionally, when one increases this means something else has to decrease since there is no place for expansion
. What are the three stages of intracranial pressure (ICP) based on changes in brain compliance and ICP?
Initial- high level of compliance/ low ICP
transition- poor compliance/ low ICP
ascending- poor or non existant compliance with high ICP
Explain the dangers of high intracranial pressure.
leads to limited blood supply causing ischemia and can lead to the death of brain tissue if not treated quickly
What does ICP measure and why is blood supply to the brain important?
ICP measures cerbral blood flow
blood supply to the brain supplies it with nutriantes and oxygen which are crucial for function and health of brain tissue
. Consider the relevance of the brain’s relatively tiny size and mass compared to its tremendous demand for glucose and oxygen. What does this have to do with the blood-brain barrier’s role in delivering nutrients to the brain and its significance? Talk about the potential effects on neurological health and disease of a damaged blood-brain barrier.
the blood-brain barrier is essential in preserving the nutritional balance needed for healthy brain function
it allows for specific molecules to pass such as glucose and oxygen preventing harmful ones from entering
if damaged neuroinflammation, neurodegeneration, and cognitive impairment can occur
Compare and contrast the two waves below in regards to intracranial pressure
The green wave shows a low pressure wave form which is considered normal as defined by its three peaks P1 large P2 and P3 smaller
The red wave shows a high pressure wave form which is not normal or healthy with a larger P2 and smaller P1 and P 3
