Neuro tests/diagnostics

Question 1

Electroencephalogram (EEG)

Answer 1

For seizures or if pt mental/LOC state rapidly changes and you don’t know why

Records activity of cerebral hemispheres
Pt must be sleep deprived
Anticonvulsants may be withheld

Question 2

Cerebral angiography

Answer 2

Images cerebral circulation

PRE:

• Prep pt with good hydration, NPO
• Check allergies
• Check circulation on distal extremities before EEG for baseline

POST:

• Keep pt legs straight
• Observe site for hematoma
• Check distal circulation, look for changes
• Full neuro assessment
• Pressure dressing
• Keep hydrated, no caffeine or alcohol 48hrs post

Worry about infection and pain later

Question 3

CT scan

Answer 3

Faster than MRIs
Cross section view, non invasive

Must be able to lay still.
Can be contrast or no contrast

Is loud so watch out for agitation

Question 4

MRI

Answer 4

Images better than CT

Question 5

Lumbar puncture

Answer 5

Between L4 and L5
KEEP SITE STERILE
Watch for CSF leakage

Leave supine after, watch for headache (common)

Question 6

CSF normal findings

Answer 6

Clear and colorless
Normal pressure
Few WBC
No RBC-trauma if there is
Send to lab ASAP after collecting