Narcissist system

Question 1

which of the following structures is NOT considered part of the brainstem

Answer 1

diencephalon

dien-cephal-on

Question 2

which of the following is the mod of choice for detecting cerebrovascular hemorrhage following acute head trauma?

Answer 2

CT

Question 3

A ventricular shunt is placed between the ventricles and the ___ to drain excess CSF in pt Dx with hydrocephalus

Answer 3

internal jugular vein
heart
peritoneum

Question 4

since the into of CT the over all mortality rate due to vbvrain abscesses has decreased from more than 40% to less than :

Answer 4

5%

Question 5

which of the following advanced MR imaging techniques is not useful in supporting a Dx of MS

Answer 5

functional imaging (fMRI)

Question 6

Non-contrast brain CT scans are most commonly used to Dx pt with strokelike symptoms because of their

Answer 6

high sensitivity to ischemic strokes

high sensitivity to hemorrhagic strokes

Question 7

in children brain tumors often tend to occur in the

Answer 7

posterior fossa

Question 8

distinguishing clinical features of astrocytomas include

Answer 8

infiltrative tumors

Question 9

meningiomas are fed by the meningeal arteries, often enabling demonstrations of an enlarged foramen spinosum and increased meningeal vascular markings on

Answer 9

skull radiography

Question 10

which of the following is not one of three tumors of the peripheral nerve sheath

Answer 10

pituitary adenoma

Question 11

what are the three meningeal layers of the spinal chord in order from outermost to innermomst

Answer 11

dura matter
Epidural space
arachnoid matter arach-noid

                           subarachnoid space pia matter

Question 12

the primary role of conventional radiography in imaging if the CNS inc the demonstration of :

Answer 12

fractures related to cranial trauma

calcifications related to chronic disease

Question 13

which of the following pathologic conditions would demonstrate as a decrease in tissue density on CT images of the CNS?

Answer 13

cerebral infarction

CNS cysts

Question 14

what imaging mod is most commonly used to image the brain of neonates?

Answer 14

US

Question 15

which of the following neurologic deficits are associated with a meningomyelocele?

Answer 15

men-ingo-myel-o-cele

diminished control of the urinary bladder

diminished control of the bowel

diminished control of the lower extremities

Question 16

what is the most common cause of chronic meningitis?

Answer 16

fungal infections

Question 17

what are the determining factors of a patient’s prognosis when diagnosed with metastatic brain disease

Answer 17

number of metastatic lesions present

primary type of malignant disease

Question 18

t/f vertebral disks are covered by a tough outer covering called the nucleus pulposus

Answer 18

false

Question 19

t/f antibiotics are often successful against many forms of meningitis though antibiotic therapy is never given before a definite diagnosis has been established

Answer 19

false

Question 20

the most common locations for disk herniation are in the lower cervical and lower lumbar regions

Answer 20

true

Question 21

t/f
spheres, coils, or beads are used to embolize or occlude cerebral vasculature as in the case of an aneurysm or arrteriovenous malformation
(AVM)

Answer 21

true

Question 22

t/f

about 80% of all strokes are caused by small vessel disease

Answer 22

false

Question 23

t/f
optimal detal of posterior fossa structures can be obscured beam-hardening artifact associated with CT making MRI the initial mod of choice for evaluating pt of all ages.

Answer 23

true

Question 24

t/f
in pt previously treated for brain neoplasms who subsequently present with new neurologic complaints distinguishing between radiation necrosis and tumor recurrence is relatively simple

Answer 24

false

Question 25

t/f recurrence is common with medulloblastomas and chemotherapy regimens have not been found to be consistently effective in controlling the recurrrence

Answer 25

true

Question 26

t/f

the appearance of craniopharyngioma tumors on both CT and MR depends on the solid and cystic components of the mass

Answer 26

true

Question 27

t/f
in spinal tumor diagnosis and evaluation conventional spine radiographs are primarily reserved for demonstrating bony destruction and widening of the vertebral pedicles related to tumor growth

Answer 27

true

Question 28

t/f
the blood brain barrier consists of a network of capillaries that connects the arteries and veins of the rain that prevent the passage of unwanted macromolecules and fluids from leaking into the brain parenchyma

Answer 28

true

Question 29

t/f
a contrast enhanced CT of the spine is best imaging choice for postoperative pt in the eval of scarring when the tissue extends beyond the vertebral interspace.

Answer 29

false

Question 30

t/f
a hemorrhagic stroke results from a rupture of a blood vessel of the brain due to a weakening in the diseased vessel wall

Answer 30

true