4.0 - Neurosurgery DX

Question 1

choroid plexus produces __mL of CSF/day

Answer 1

500

Question 2

principla motor tract of the SC

Answer 2

corticospinal tract

Question 3

first to assess in neurological exam

Answer 3

mental status

Question 4

most relevant measures when mental status is impaired

Answer 4

pupil reactivity
Eye movement
facial symmetry
gag

Question 5

also known as flexor posturing

Answer 5

decorticate rigidity

Question 6

presence of babinski reflex signifies?

Answer 6

upper motor neuron dse

Question 7

demonstrate fractures, osteolytic or osteoblastic, or pneumocephaly

Answer 7

plain x ray

Question 8

extremely useful dx tool in the setting of new focal neurologic deficit, decreased mental status, or trauma

Answer 8

non contrast CT

Question 9

CT scan type that help show neoplastic or infectious process; for px who cannot undergo MRI d/t pacemakers or metal in orbits

Answer 9

contrast CT

Question 10

fine slice CT scanning is only used when?

Answer 10

abnormality is seen in plain films

Question 11

assess vascular lesions

Answer 11

thin slice axial contrast CT scan

Question 12

limit of CT angiography

Answer 12

aneurysms

Question 13

assessing soft tissues of the head and spine

Answer 13

MRI

Question 14

MRI sequence that detect neoplastic and infectious processes

Answer 14

T1 sequence

Question 15

MRI sequence that assess lesion associated edema of the brain and neural compression of the spin

Answer 15

t2 qequence

Question 16

can detect ischemic stroke than CT

Answer 16

DWI (diffusion weighted imaging)

Question 17

assess dural venous sinuses patency/thrombosis

Answer 17

MRI venograms

Question 18

gold standard for evaluation of vascular pathology of brain and spine

Answer 18

TCBA (transarterial catheter based angiography)

Question 19

emg/ncs typically performed when?

Answer 19

3-4weeks after injury

Question 20

invasive monitoring bores a hole in what part of the skull

Answer 20

right frontal portion

Question 21

ventriculostomy placed in which part of the ventricles?

Answer 21

frontal horn of the lateral ventricle

Question 22

similar to ventriculostomy but fewer complications

Answer 22

intraparenchymal fiber optic pressure transduscer (bolt)

Question 23

mortality benefit in traumatic brain injury patients

Answer 23

brain tissue oxygen sensors