Exam 3 Neuro

Question 1

How much CO does the brain receive?

Answer 1

20%

Question 2

How fast does CBF adjust to CPP changes?

Answer 2

In 10-60sec

Question 3

A Pt complains of an unresolved HA, what can be checked to rule out a pathologic ICP increase?

Answer 3

Lumbar puncture to check CSF for blood

Question 4

What is the usual Mannitol dose?

Answer 4

0.5 - 1 mg/kg IVP

Question 5

Relate dexamethasone to ICP?

Answer 5

Dexamethasone decreases ICP

Question 6

What dermatomes control the bladder?

Answer 6

T11 - L2

Question 7

What dermatomes could be affected with paraplegia?

Answer 7

T2 - T12

Question 8

A Pt has uncontrolled hyperthermia, what could be a neurological cause?

Answer 8

High spinal lesion

Question 9

What functions are disrupted with LVO’s?

Answer 9

Higher brain functions

Question 10

What vessels make up the LVO’s?

Answer 10

Basilar artery
Carotid terminus
Middle cerebral artery

Question 11

A lucid interval is the hallmark of?

Answer 11

Epidural hematoma

Question 12

Which hematoma requires the use of Nimodipine?

Answer 12

Subarachnoid hematoma to decrease vasospasms

Question 13

Which hematoma is treated with triple H therapy?

Answer 13

Subarachnoid hematoma

Question 14

What fluids should be administered for CVA Pt’s?

Answer 14

Isotonic fluids

Question 15

What hematoma most likely requires a craniotomy?

Answer 15

Subdural hematoma

Question 16

What are the S/S of Alzheimer’s?

Answer 16

Apraxia
Aphasia
Agnosia

Question 17

What is very important for someone with MS undergoing surgery?

Answer 17

Keep their temperature up.
Do not use Scc
May stress dose steroids

Question 18

What are the S/S of a seizure while under anesthesia?

Answer 18

Tachycardia
HTN
Increased EtCO2

Question 19

What 2 anesthetic/induction drugs should not be used in someone with seizures?

Answer 19

Methohexital
Etomidate

Question 20

What is the difference in S/S of corneal abrasions vs ischemic optic neuropathy?

Answer 20

Abrasions: Painful, photophobia & unilateral
Neuropathy: Painless, vision loss, bilateral

Question 21

What increases the risks for ischemic optic neuropathy?

Answer 21

Hypotension
Anemia
Vasopressors
Positioning (Face down, upright)