Motor cortex, voluntary movement, Broca's expressive speech center-dominant hemisphere; personality; behavior: social, sexual, judgment, and problem-solving
What is Frontal lobe
Smell, sensory
I Olfactory
Lateral eye movement
Motor
VI Abducens
Awake with appropriate speech and behavior
Conscious
Used to assess bleeding, edema or masses
Hold metformin meds 48hr prior to and after scan
Monitor renal function( BUN, Creatinine)
Check allergies for iodine such as shellfish and dyes
Ensure patent iv line is in place
Computed Tomography (CT) scan
Sensation interpretation and perception; spatial relationships such as body position; integration of sensory input, especially visual input
What is Partial lobe
Vision, sensory
II Optic
Taste facial expressions
Mixed
VII Facial
Disorientation, bewilderment, difficulty following commands
Confusion
Used for detecting cancer
No food or drink by mouth is allowed for at least 6 to 12 hr prior to test
No caffeine, alcohol, or tobacco 24 hrs prior to the test
Positron emission tomography(PET)
Auditory sensation and perception; long-term memory; Wernicke's receptive speech center
What is Temporal lobe
Eye movement up, down, lateral, the opening of the eyelid, pupil constriction. Motor
III Oculomotor
Hearing and balance
Sensory
VIII Vestibulocochlear(acoustic)
Sleepiness, slow and delayed response to stimulus
Lethargic
Done to obtain a sample of cerebrospinal fluid (0-15)
Ensure antiplatelet and anticoagulant meds are held prior to the test to reduce the risk of bleeding
Encourage fluid post-procedure to decrease headache, and flatbed rest 4 to 6hr after the procedure
Lumbar puncture
Process visual information; perception of color and shapes
What is Occipital lobe
Medial and downward medial eye movement
Motor
IV Trochlear
Taste, touch, pressure, pain, temperature, sensations from tongue and outer ear, regulation of blood pressure and respiration, salivation, swallow, gag
Mixed
IX Glossopharyngeal
Somnolence with drowsiness between sleep states, lessened interest in the environment, slowed responses to stimulation
Obtundation
Uses 8 to 24 scalp electrodes to trace the spontaneous electrical activity of the brain
No caffeine 8 to 12 hours prior to the test
Wash hair the night before and morning of the test and avoid using hair products prior test
Electroencephalography
Swallow, head, neck, and shoulder movements
Tongue movement with speech; food manipulation and swallowing
Motor
XI Accessory
XII Hypoglossal
Mixed
V Trigeminal
Taste sensation of hunger, fullness, gastrointestinal discomfort, bronchoconstriction, gastrointestinal secretion, and motility
Mixed
X Vagus
Minimal movement without stimulus; requires strong vigorous stimulus and then drifts back to unresponsive
Not arousable and unresponsive
Stupor
Coma
Provide three-dimensional images and offer clear visualization and detail of small structures
Screen for any metal object and hold before the test
Encourage hydration after test
Magnetic resonance imaging (MRI)