intracranial Flashcards

(58 cards)

1
Q

central nervous system

A

brain, spinal cord, contains relay neurons

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2
Q

peripheral nervous system

A

cranial nerves, spinal nerves, peripheral nerves, contain sensory neurons and motor neurons

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3
Q

cerebrum

A

main
portion of the brain-
contains 2
hemispheres and 4
lobes

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4
Q

diencephalon

A

assists
with endocrine
function – houses the
hypothalamus

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5
Q

brainstem

A

controls
basic body functions –
swallowing, heart rate,
breathing etc.

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6
Q

cerebellum

A

regulates muscle
activity and
coordination

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7
Q

frontal lobe

A

motor control, problem solving, brocas area - speech production

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8
Q

temporal lobe

A

auditory processing, hearing, language processing - wernickes area, memory and information retrieval

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9
Q

brainstem

A

breathing, heart rate, involuntary response

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10
Q

cerebellum

A

balance and coordination

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11
Q

occipital lobe

A

visual cortex- sight, visual reception, visual interpretation

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12
Q

parietal lobe

A

touch perception, body orientation and body discrimmination

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13
Q

expressive aphasia

A

Broca’s area
* Associated with the production
of speech.
* You may be able to
comprehend what’s being said
but be unable to speak fluently
(unable to find the right word)
* Impacts how words are strung
together to form complete
sentences.
* You might only be able to say
single words or very short
sentences

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14
Q

receptive aphasia

A
  • Wernick’s Aphasia
  • Associated with the
    comprehension of speech
  • When you don’t realize that
    what your saying is
    nonsense or you’re using
    the wrong words
  • Unable to understand the
    meaning of words
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15
Q

autonomic nervous system,

A

sympathetic and parasympathetic nervous system

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16
Q

sympathetic nervous system

A

the bodies primary process to stimulate fight or flight (pupil dilation)

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17
Q

parasympathetic nervous system

A

rest and digest, feed and breed,

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18
Q

sympathetic actions

A

heart rate increases, airways dilate, sweat glands stimulate secretions, liver converts glycogen to glucose, digestive system decreases activity, uterus contacts, bladder relaxes

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19
Q

parasympathetic actions

A

pupils constrict, heart slows, breathing slows, airways constrict, liver releases bile, blood vessels constrict, digestive system activates, uterus relaxes, increased urinary output

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20
Q

collection of data

A

Past History
* Head injuries – even
minor head injuries
can produce deficits
* Hx of brain disorders?
– meningitis/
encephalitis (infection
of brain)
Family history –
may have genetic
disposition
* HTN
* CVA
* Epilepsy
Lifestyle
* Smoker- nicotine
constricts brain
vessels and
decreases blood flow
to the brain
* Pesticides- can alter
neuro status

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21
Q

neurological examinations

A

Mental status, cranial nerves, motor
and cerebellar systems, sensory
system, reflexes

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22
Q

order of physical exam

A

Gather equipment
Assess LOC, appearance and behavior
Test Cranial Nerves (includes pupil assessment)
Test movement of muscles, balance and coordination
Test sensation (tactile touch, temperature, pain)
Additional testing as needed (Brudzinski)

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23
Q

assess of the patient is conscious and oriented

A
  • Awake and alert
  • Responds to verbal – may grunt or moan
  • Responds to pain – pinch / sternal rub
  • Unresponsive
  • Person – who are they?
  • Place – where are they?
  • Time – what is today? Usually first to go in older
    adults
  • Documented as A & O x3 (alert and oriented x 3)
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24
Q

glasgow coma scale

A

Assesses patients with a
brain injury
May not be useful in
intubated or aphasic
patients (unable to assess
verbal)
Best score - 15
Score under 10 requires
emergency treatment
Score 8 or less=coma

25
general impression
gait, posture, behavior and affect, dress and grooming, facial expressions, speech, memory
26
motor and cerebellar systems
Assess size and condition of muscles Atrophy- muscle wasting Assess strength and tone Ask patient to squeeze hands bilaterally and push down/pull up feet against resistance. Evaluate balance and gait Observe patient walking and balance
27
romberg tests
Ask patient to stand with feet together, hands at their sides and eyes closed Swaying or moving feet apart is abnormal finding Positive Romberg test is an indication of cerebellar ataxia (abnormal lack of coordination) Be sure to protect the patient from falling!
28
assessing sensory system
Assess light touch, pain, and temperature sensations. May use a pen or paper clip to test sensation in hands / feet. May use hot or cold pack to test temperature.
29
anesthesia
absence of touch
30
hypesthesia
decreased sensitivity to touch
31
test reflexes
Reflexes test the integrity of spinal cord and the peripheral nervous system Testing with a reflex hammer Scaled on response from 0 – 5+ Conducted more often in advanced health assessment
32
grading reflexes
0 = no response; always abnormal. 1+ = a slight but definitely present response; may or may not be normal. 2+ = a brisk response; normal. 3+ = a very brisk response; may or may not be normal.
33
what is a CVA
Stroke is when blood flow to the brain is interrupted depriving the brain cells of oxygen. Stroke is a medical emergency. Seek help immediately because treatment is time limited. Don’t wait for the symptoms to improve or worsen. If you believe you are having a stroke— or someone you know is having a stroke—call 911 immediately. Making the decision to call for medical help can make the difference in avoiding a lifelong disability
34
symptoms of a stroke
Sudden numbness or weakness of the face, arm, or leg (especially on one side of the body) Sudden confusion, trouble speaking, or understanding speech Sudden trouble seeing in one or both eyes Sudden trouble walking, dizziness, loss of balance or coordination Sudden severe headache with no known cause
35
risks for stroke
Hypertension Diabetes mellitus Heart disease Smoking and exposure to second-hand smoke Age and gender (older and women) Race (African American) Personal or family history Use of oral contraceptives (birth control) Obesity Stress
36
teaching topics for stroke prevention
Quit smoking. Control your cholesterol through diet, exercise, and medicines, if needed. Control high blood pressure through diet, exercise, and medicines, if needed. Control diabetes through diet, exercise, and medicines, if needed. Exercise at least 30 minutes a day.
37
FAST
 FACE: Ask the person to smile. Does one side of the face droop?  ARMS: Ask the person to raise both arms. Does one arm drift downward?  SPEECH: Ask the person to repeat a simple phrase. Is speech slurred or strange?  TIME: If you observe any of these signs, call 9-1-1 immediately.
38
kernigs sign
flexion of the leg while the hip is flexed
39
brudzinkis sign
flexion of the hips and knees in response to neck flexion
40
decorticate posturing
arms look like C's, problems with cervical spine or cerebral hemisphere
41
decerebrate posturing
arms are outwards and look like e's, damage to the pons or midbrain
42
abnormal muscle movement
Eye tics- brief, repetitive, coordinated movements Tourette’s syndrome / amphetamines Resting (static) tremors – only at rest, disappear with voluntary movement – seen in Parkinson’s Nystagmus – eyes make repetitive uncontrolled movements multiple sclerosis- immune disorder that causes degeneration of brain Brain tumor Diabetic neuropathy
43
abnormal movements in older adults
Decreased taste and scent sensation. There is a normal decrease in the older person’s ability to hear. There is a normal decrease in the older person’s ability to see. Older adults may experience tremors with intentional movements. * Some older clients may have reduced muscle mass from degeneration of muscle fibers.
44
older adult considerations
Some older clients may normally have hand or head tremors or dyskinesia (repetitive movements of the lips, jaw, or tongue). Some older clients may have a slow and uncertain gait. The base may become wider and shorter, and the hips and knees may be flexed for a bent-forward appearance. For some older clients, rapid alternating movements are difficult because of decreased reaction time and flexibility.
45
common pregnant client complaints
Pain or tingling feeling in the thigh Carpal tunnel Syndrome Leg Cramp Dizziness and lightheadedness
46
newborn considerations
Have a knowledge of developmentally appropriate relfexes- this may indicate an underlying problem Inappropriate response to stimuli suggest CNS disorders/problem Babinski response is a normal response in children younger than 2years
47
babinski reflex
stroke the sole of foot - fans out toes and twists foot in, disappears at nine months to a year
48
blinking
flash of light or a puff of air - closes eyes - permanent
49
grasping
palms touched - grasps tightly - weakens at three months dissapears at one year
50
nystigmus
abnormal eye movement
51
accomodation
stare off at the penlight and bring the penlight closer to the face and should have the pupils constrict as you get closer
52
PERRLA
pupils equal round and reactive to light and accomodation
53
moro reflex
theres a sudden loud noise or sudden move and startles the baby so the baby throws the arms and legs out and then turns them towards the body. disappears at 3-4 months
54
rooting reflex
when you stroke the side of the babies cheek and they move their towards that side of the face being stroked disappears around 3-4 months
55
stepping reflex
infant is held up with the feet touching the ground in response the infant will step as if to walk disappears around 3-4 months
56
sucking reflex
something is placed in the infants mouth and the infant sucks to it in response, this disappears around 3-4 months
57
swimming reflex
infants legs are placed in water and they begin to make swimming movements with their legs disappears at 6-7 months
58
tonic reflex
placed on the back and they make fists with their hands and turns the head to the right. disappears at 2 months