Neuro Adults Flashcards
How much glucose is used by the brain?
80%
Controls mobility, sensation, cognition, many involuntary processes.
Nervous system key function
Brain (cerebrum, cerebellum, brain stem)
Spinal Cord are part of what?
Central Nervous System (CNS)
Basic units of the nervous system.
* Trasmit impulses or “messages”.
Neurons
(afferents neurons): Control sensation and send messages from PNS to the CNS.
Sensory neurons
(efferent neurons): Control mobility and send messages from the CNS to PNS
Motor neurons
Afferent Approaches the CNS, Efferent Exits the CNS
Regulated by centers in the spinal cord, brainstem, and hypothalamus
Autonomic Nervous System
farsightedness; light rays focus behind the retina
hyperopia
If ____ is present in adult then is abnormal.
Babinski
Babinski is for babies
Alert, Verbal stimuli, Painful stimuli, Unresponsive
A V P U
Levels of consiousness
Dropping eyelid
Ptosis
Produces images of actual organ functioning. The patient is injected with a radioctive (nuclear) substance that emits positively charged particles.
Positron Emisson Tomography (PET)
Side effects of ____ may include dizziness, lightheadedness, headache
Side effects of PET
Expected
Relaxation exercises may reduce anxiety
Three dimentional imaging technique that uses radionuclides
and instruments to detect single photons.
Useful in detecting abnormally perfused areas of the brain, find stroke.
Pregnancy and breast-feeding are contraindications
Single-Photon Emission Computed Tomography (SPECT)
X-ray study of the cerebral circulation
with a contrast agent
injected into a selected artery
Inserted into the femoral artery in the groin.
Mark peripheral pulses.
Cerebral Angiography
Check patient’s blood urea nitrogen (BUN) and creatine to ensure the kidneys will be able to excrete the contrast agent before what test?
Void immediatle before the test.
Cerebral Angiography
Complications of ____ are altered LOC, weakness of one side of the body, motor or sensory deficits, and speech disturbances.
Cerebral Angiography
Care after ____ check bleeding, hematomas, peripheral pulses, color of extremity, increase fluids.
Keep extremity straight.
Cerebral angiography
X-ray of the spinal subarachnoid space taken after the injection of a contrast agent
into the spinal subarachnoid space through a lumbar puncture
.
Myelography
Keep head of bed 30 to 45 degrees. Remain in bed 4 to 24 hours in recommended position.
Myelography
Nursing Intervensions
Used to identify seizures, sleep disorders, and other conditions. Electrodes placed on the scalp to record electrical activity in the brain.
Electroencephalogram (EEG)
Instruct patient to wash hair prior to procedure, arrive sleep deprived, avoid stimulants or sedative medications prior to procedure. No NPO needed.
Electroencephalogram (EEG)
Obtained by inserting needle electrodes into the skeletal muscles changes in the electrical potential of the muscles.
Muscle can be sore.
Electromyography
Cerebral Spinal Fluid (CSF) sample is taken from the spinal canal for analysis.
Lumbar Puncture
Used to diagnose meningitis, subarachnoid hemorrhage, neurological disorders.
Usually done between L3/L4 or L4/L5
Lumbar puncture
- Have patient empty bladder.
- Position patient on their side in a fetal position, or streched over a table (so back is arched)
Lumbar puncture Pre Procedure
- Instruct patient to lay flat for several hours and Increase fluid intake.
- Monitor for CSF leak, which can cause a severe headache (epidural blood patch may be necessary)
Lumbar Puncture Post Procedure
What part of the brain contains the motor cortex and Broca’s area (speech function)?
Frontal Lobe
What part of the brain contains the sensory cortex?
Parietal Lobe
What part of the brain contains the visual cortex?
Occipital Lobe
What part of the brain contains the auditory cortex and Wernicke’s area (comprehension of verbal/written language)?
Temporal Lobe
Key functions: Controls motor, cognitive, sensory function.
Cerebrum