NURS 3000 Exam test queries and
answers graded A+
What is the normal range for ICP? - ANS✅✅5-15 mmHg
What factors influence ICP? - ANS✅✅BP
cardiac function
posture
Temp
Blood gasses
Intra-abdo and thoracic pressure
What is a normal MAP? - ANS✅✅50-150 mmHg
MAP Calculation - ANS✅✅[Sys BP + (2 (dias BP)]/3
Ex. BP 82/48
[82 + (2 (48)]/3 = [82 + 96]/3
= 59 mmHG (low MAP)
What happens if MAP is >150? - ANS✅✅Cerebral vessels maximally constricted
Loss of ability to autoregulate
What happens if MAP is <50? - ANS✅✅Not enough blood flow to brain which can result in
ischemia and related neuro changes
What is CBF? - ANS✅✅Cerebral blood flow
what is CBF calculation? - ANS✅✅Cerebral perfusion pressure (CPP) = MAP - ICP
ex. BP 112/50 and ICP = 10
, [Sys BP + (2(dias BP)/3)] - ICP
[112 + (2(50)/3)] - 10
[112 + 100/3] - 10
212/3 - 10
60.6
What is normal CPP? - ANS✅✅70-100
What happens if CPP is <50? - ANS✅✅cellular ischemia
What happens if CPP is <30? - ANS✅✅Incompatible with life
What type of stroke is most common? - ANS✅✅ischemic strokes (80%)
What is a TIA? - ANS✅✅"mini stroke"
Transient ischemic attack
Can be a precursor or risk factor for CVA
Symptoms usually resolve in a hour without lasting neuro deficits
What is a thrombotic stroke? - ANS✅✅often caused by a build up of plaque causing
constriction/narrowing of the vessels and decreased blood flow to an area of the brain
What is an embolic stroke? - ANS✅✅occlusion of a vessel in the brain due to a clot that formed
outside the brain (often cardiac origin) and results in decreased blood flow
What is a intracerebral hemorrhage? - ANS✅✅Accumulation of blood in the cranial vault resulting
in compression of brain tissue, and increased ICP
What is a subarachnoid hemorrhage? - ANS✅✅blood accumulates in subarachnoid space and
results in increased ICP and decreased cerebral perfusion
answers graded A+
What is the normal range for ICP? - ANS✅✅5-15 mmHg
What factors influence ICP? - ANS✅✅BP
cardiac function
posture
Temp
Blood gasses
Intra-abdo and thoracic pressure
What is a normal MAP? - ANS✅✅50-150 mmHg
MAP Calculation - ANS✅✅[Sys BP + (2 (dias BP)]/3
Ex. BP 82/48
[82 + (2 (48)]/3 = [82 + 96]/3
= 59 mmHG (low MAP)
What happens if MAP is >150? - ANS✅✅Cerebral vessels maximally constricted
Loss of ability to autoregulate
What happens if MAP is <50? - ANS✅✅Not enough blood flow to brain which can result in
ischemia and related neuro changes
What is CBF? - ANS✅✅Cerebral blood flow
what is CBF calculation? - ANS✅✅Cerebral perfusion pressure (CPP) = MAP - ICP
ex. BP 112/50 and ICP = 10
, [Sys BP + (2(dias BP)/3)] - ICP
[112 + (2(50)/3)] - 10
[112 + 100/3] - 10
212/3 - 10
60.6
What is normal CPP? - ANS✅✅70-100
What happens if CPP is <50? - ANS✅✅cellular ischemia
What happens if CPP is <30? - ANS✅✅Incompatible with life
What type of stroke is most common? - ANS✅✅ischemic strokes (80%)
What is a TIA? - ANS✅✅"mini stroke"
Transient ischemic attack
Can be a precursor or risk factor for CVA
Symptoms usually resolve in a hour without lasting neuro deficits
What is a thrombotic stroke? - ANS✅✅often caused by a build up of plaque causing
constriction/narrowing of the vessels and decreased blood flow to an area of the brain
What is an embolic stroke? - ANS✅✅occlusion of a vessel in the brain due to a clot that formed
outside the brain (often cardiac origin) and results in decreased blood flow
What is a intracerebral hemorrhage? - ANS✅✅Accumulation of blood in the cranial vault resulting
in compression of brain tissue, and increased ICP
What is a subarachnoid hemorrhage? - ANS✅✅blood accumulates in subarachnoid space and
results in increased ICP and decreased cerebral perfusion
