TOPIC 5-6 Flashcards
CN 1- olfactory test
o With person’s eyes closed, occlude one nostril and present familiar aromatic substance
-e.g., coffee, orange, vanilla, soap, or peppermint
CN II- optic test
o Test visual acuity (eye exam chart) and visual fields by confrontation (peripheral vision)
CN III, IV, and VI- oculomotor, trochlear, and abducens nerves
eye lid blink
pupils (size, regularity, equality, direct and consensual light reaction, and accommodation)
eye up, down, side to side movement, cross eyed
nystagmus
involuntary rapid eye movements - back-and-forth oscillation of eyes
pendular movement
oscillations move equally left to right
jerk movement
a quick phase in one direction, then a slow phase in other
assessment of nystagmus: amplitude
degree of movement: fine, medium, or coarse
assessment of nystagmus: frequency
constant, or fades after a few beats
assessment of nystagmus: plane of movement
horizontal, vertical, rotary, or combination
CN V- Trigeminal
-palpating temporal and masseter muscles as person clenches teeth
-with person’s eyes closed, test light touch sensation by touching a cotton wisp to designated areas on person’s face: forehead, cheeks, and chin
corneal reflex
blinking in response to corneal stimulation by a cotton wisp, Þ Tests sensory afferent in cranial nerve V and motor efferent in cranial nerve VII (muscles that close eye)
CN VII- facial test
-request to smile, frown, close eyes tightly (against your attempt to open them), lift eyebrows, show teeth
-puff cheeks, then press puffed cheeks in, to see that air escapes equally from both sides
(taste on anterior 2/3 is not routinely tested)
CN VIII- Vestibulocochlear test
o Test hearing acuity by ability to hear normal conversation and by whispered voice test
CN IX and X- glossopharyngeal and vagus test
-Depress tongue with tongue blade, and note pharyngeal movement as person says “ahhh” or yawns;
-Gag reflex-Touching posterior pharyngeal will induce; voice should sound smooth, not strained
CN XI- accessory test
o Ask person to shrug shoulders against resistance
CN XII- hypoglossal test
o Inspect tongue; no wasting or tremors should be present
o Note forward thrust in midline as person protrudes tongue
o Ask person to say “light, tight, dynamite,” and note that lingual speech (sounds of letters l, t, d, n) is clear and distinct
anosmia
decrease or loss of smell bilaterally
hemianopia
Visual defect that affects half of visual field
what are the developmental changes in the neuro system of the agin adult
Atrophy with steady loss of neuron structure in brain and spinal cord
o loss of weight /volume with thinning of cerebral cortex,
o reduced subcortical brain structures, and
o expansion of the ventricles
Decreased Velocity of nerve conduction in older adults leads to
reaction time slower
Delay at synapse in older adult leads to
diminished sensation of touch, pain, taste, and smell
Motor system is older adults
general slowing down of movement; muscle strength and agility decrease
Progressive decrease in cerebral blood flow and oxygen consumption in older adults
may cause dizziness and loss of balance (increasing fall risk)
if an older adult has any problems with diziness what are they more at risk for
orthostatic hypotension
micturition syncope
feeling like fainting while urinating at night
Screening neurologic examination is used for
o well persons with no significant findings from history
Complete neurologic examination is used for
o persons with neurologic concerns, e.g., headache, weakness, loss of coordination
o shown signs of neurologic dysfunction
Neurologic recheck examination is used for
persons with demonstrated neurologic deficits who require periodic assessments
what is the sequence for a complete neurologic exam
-Mental status
-Cranial nerves
-Motor system
-Sensory system
-Reflexes
nero assessment equiptment
Penlight, Tongue blade, Cotton swab, Cotton ball, Tuning fork: 128 Hz or 256 Hz, Percussion hammer
what do you assess for in the muscles?
size
strength
tone
involuntary movement
balance test
-Gait: observe as person walks 10 to 20 feet, turns, and returns to starting point;
o walk straight line in heel-to-toe fashion;
o Also, walk on toes, then on heels for a few steps
Romberg test
o stand up with feet together and arms at sides; when in stable position, ask person to close eyes and to hold position for about 20 seconds
o shallow knee bend or hop in place, first on one leg, then other
Rapid Alternating Movements (RAM)
ask the person to pat the knees with both hands, life tup, turn hands over, and pat knees with the backs of the hands, then faster, usually with equal turning and quick rhythmic pace
Finger-to-finger test
with eyes open, ask person to use index finger to touch your finger, then their own nose; then move your finger to continue test
Finger-to-nose test
with eyes closed and stretch out arms and touch tip of their nose with each index finger, alternating hands and increasing speed
Heel-to-shin test
ask person in supine position to place heel on opposite knee and run it down shin to ankle
faccidity
Decreased muscle tone or hypotonia;muscle feels limp, soft, and flabby; muscle is weak and easily fatigued
Spasiticity
Increased tone or hypertonia;increased resistance to passive lengthening
Rigidity
Constant state of resistance; resists passive movement in any direction; dystonia
Cogwheel rigidity
Type of rigidity in which the increased tone is released by degrees during passive range of motion so it feels like small, regular jerks
Paralysis
Decreased or loss of motor power caused by problem with motor nerve or muscle fibers
hemiplegia
spastic or flaccid paralysis of one side (right or left) of body and extremities