NURS 3000 - Final Exam UPDATED
ACTUAL Questions and CORRECT
Answers
What is the normal range for ICP? - CORRECT ANSWER -5-15 mmHg
What factors influence ICP? - CORRECT ANSWER -BP
cardiac function
posture
Temp
Blood gasses
Intra-abdo and thoracic pressure
What is a normal MAP? - CORRECT ANSWER -50-150 mmHg
MAP Calculation - CORRECT ANSWER -[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? - CORRECT ANSWER -Cerebral vessels maximally constricted
Loss of ability to autoregulate
What happens if MAP is <50? - CORRECT ANSWER -Not enough blood flow to brain which can
result in ischemia and related neuro changes
What is CBF? - CORRECT ANSWER -Cerebral blood flow
, what is CBF calculation? - CORRECT ANSWER -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? - CORRECT ANSWER -70-100
What happens if CPP is <50? - CORRECT ANSWER -cellular ischemia
What happens if CPP is <30? - CORRECT ANSWER -Incompatible with life
What type of stroke is most common? - CORRECT ANSWER -ischemic strokes (80%)
What is a TIA? - CORRECT ANSWER -"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? - CORRECT ANSWER -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? - CORRECT ANSWER -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
ACTUAL Questions and CORRECT
Answers
What is the normal range for ICP? - CORRECT ANSWER -5-15 mmHg
What factors influence ICP? - CORRECT ANSWER -BP
cardiac function
posture
Temp
Blood gasses
Intra-abdo and thoracic pressure
What is a normal MAP? - CORRECT ANSWER -50-150 mmHg
MAP Calculation - CORRECT ANSWER -[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? - CORRECT ANSWER -Cerebral vessels maximally constricted
Loss of ability to autoregulate
What happens if MAP is <50? - CORRECT ANSWER -Not enough blood flow to brain which can
result in ischemia and related neuro changes
What is CBF? - CORRECT ANSWER -Cerebral blood flow
, what is CBF calculation? - CORRECT ANSWER -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? - CORRECT ANSWER -70-100
What happens if CPP is <50? - CORRECT ANSWER -cellular ischemia
What happens if CPP is <30? - CORRECT ANSWER -Incompatible with life
What type of stroke is most common? - CORRECT ANSWER -ischemic strokes (80%)
What is a TIA? - CORRECT ANSWER -"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? - CORRECT ANSWER -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? - CORRECT ANSWER -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
