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Principles III-Exam II-Neuro 19-27
neuro, neuro, neuro
15
Nursing
Graduate
02/28/2010

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Cards

Term

 

 

Chronic hypertension shifts the cerebral autoregulation curve to?

Definition

 

 

the right

Term

 

 

T/F

Autoregulation is present in diseased tissue.

Definition

 

False-it is absent in diseased or traumatized tissue.

 

Perfusion is therefore dependent on CPP

Term

 

 

What will a patient who is unable to autoregulate require to maintain CPP?

Definition

 

 

A higher MAP

Term

 

 

What is the normal CPP?

Definition

 

 

80-100 mmHg

Term

 

 

How is CPP calculated?

Definition

 

CPP= MAP-ICP

 

CPP= MAP-CVP (if CVP is greater than ICP)

Term

 

BP 180/90

ICP 35

CVP 14

Calculate CPP

Definition

 

 

CPP is 85

Term
The cranial vault is rigid. It contains a certain amt of brain, blood and CSF. What are they?
Definition

 

 

Brain 80%

Blood 12% 

CSF 8%

Term

 

 

An increase in any one of the cranial volumes must be reciprocated by a reduction in another volume to maintain a normal ICP. Who's principle am I?

Definition

 

 

Monroe-Kellie principle

Term

 

 

Whats the normal ICP?

Definition

 

 

5-15 mmHg

Term

 

When does focal ischemia occur?

Global ischemia?

Definition

 

Focal ICP 25-55 mmHg

 

Global ischemia ICP >55mmHg

Term

 

 

What is Cushing's Triad?

Definition

 

-Elevated MAP

-Reflexive bradycardia

-irregular respirations

Term

 

 

A patient is exhibiting signs of N/V; altered LOC, severe HA. What's my ICP?

Definition

 

 

assume ICP is >20 mmHg

Term

 

 

The patient starts to herniate at?

Definition

 

 

the critical point, the point of decompensation, irreversible brain damage, global ischemia and herniation

Term

 

 

Paralysis of CN III (occulomotor) results in an inability to ______ the eye.

 

Paralysis of CN VI results in an inability to _____ the eye.

Definition

 

CN III-adduct 

 

CN VI-abduct

Term

 

 

List five s/s of increased intracranial pressure.

Definition

-N/V

-HA

-blurred vision

-Altered LOC

-Unilateral pupil dilation

-papilledema

-HTN

-Bradycardia

-Irregular respiration

-Seizures

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