click below
click below
Normal Size Small Size show me how
FON exam 3
neurologic assessment and nursing process
| Question | Answer |
|---|---|
| CNS assessment | brain and spinal cord |
| peripheral nervous system assessment | 12 pairs of CN, spinal and peripheral nerves |
| neuro assessment parameters | mental status, cranial nerves, motor system, sensory system, reflexes |
| mental status assessment | LOC, appearance/behavior, speech/language/communication, thought process/judgement |
| what to assess in LOC | awake and alert? oriented x3? - person, place, time |
| when assessing orientation... | person place time - be aware that even you don't always know the date event/situation - if using A&O x3 (do yk why you're here) |
| person | the pts own name and name of relatives and professional personnel - "can you tell me your name" |
| place | the pts residence, city and state "what is your address" |
| time | time of day, day of the week, month, season, date and year, duration of LOS - "can you tell me what time it is now, and what day it is" |
| situation | what just happened/is happening (frequently used after an accident or anesthesia - "can you tell me what just happened" |
| lethargic | sleepy/drowsy asleep more than awake easily arousable with verbal and tactile stimuli - shake, talk to will respond to questions - may be appropriate or not appropriate |
| obtunded | pt will: open their eyes to verbal/tactile stimuli look at you respond - slowly, confused become unresponsive if not stimulated |
| stuporous | not good! no spontaneous movement if not aroused - must be shaken or shouted at inappropriate verbal response purposeful response to pain - pull away or hit |
| a stuporous pt is | nearly unconscious with apparent mental inactivity and reduced ability to respond to stimulation |
| comatose | patient will be unconscious and unresponsive cannot be aroused even with pain |
| when should you focus on your assessment on mental status | pt is confused (if new, do neuro assess) family/pt concerns - "just not acting herself" acute behavioral changes long or short term memory loss aphasia - |
| mental status - beyond LOC and assess | general appearance and behavior speech and language mood cognitive function |
| mental status - assessing appearance and behavior | pt has appropriate concerns regarding care body mvmts - control, symmetry, appropriate, full/limited ROM posture - upright, slumping gait - smooth, unassisted, assisted (how they walk) calm, restless, anxious, combative eye contact |
| mental status - assessing appearance and behavior | gathering info to identify a problem - not diagnosing grooming/dressing - clean, age appropriate? weather appropriate? both sides equal? |
| abnormal findings in mental status - assessing appearance and behavior may be due to | depression, schizophrenia, dementia, OCD, CVA, visual disturbances, MS |
| mental status - assessing appearance and behavior: facial espression | appropriate, symmetrical: smile = unequal if pt is oriented, you can say "hey i noticed a droop, normal?" |
| mental status - speech and language (communication) | spontaneous/coherent speech? effortless flow? normal intonations, rate, rhythm? content makes sense? able to comprehend and reply appropriately? |
| aphasia | loss of ability to understand or express speech, caused by brain damage impairment of language function pt cannot produce language (expressive), understand language (receptive), or both (global) |
| aphasia is | a language disorder that affects a persons ability to communicate |
| expressive aphasia | brain knew what to say but mouth could not say it |
| receptive aphasia | not understanding what they're saying |
| causes of aphasia | CVA, TBI, brain tumor/surgery, infection (temporary), migraine (temporary) |
| mental status assessment: appearance, behavior, speech | flat affect - depends on culture manic depressive - describe instead of diagnose anger/hostility - may escalate quickly, have an escape!! |
| mini mental status exam (MMSE) - standardized tool | brief questionnaire must be fluent in english and have an 8th grade education max of 30 points half = cognitively impairment |
| 5 components of the MMSE | appearance and behavior speech and language mood thoughts and perceptions cognitive function |
| mental status assessment: cognition | newer, high degree of validity mini cog test screens for cognitive impairment in older individuals |
| mini cog tes | high sensitivity and specificity for detecting cognitive impairment |
| screens for cognitive impairment in older individuals | 3 word recall test for memory clock drawing test |
| cranial nerves | I - XII 12 pairs grouped by how they are tested/assessed always assess symmetry! |
| function of cranial nerves | the functions of the CNs are sensory, motor or both |
| sensory CNs | help a person to see, smell, and hear |
| motor CNs | help control muscle movements in the head and neck |
| I - olfactory | smell |
| II - optic | vision |
| III - oculomotor | eye movement (most muscles), pupil constriction, eyelid elevation |
| IV - trochlear | down and inward movement of eye |
| V - trigeminal | facial sensation, muscles of chewing |
| VI - abducens | lateral movement of eye |
| VII - facial | facial expression/movement, taste on anterior tongue, saliva and tear secretion |
| VIII - acoustic | hearing and balance |
| IX - glossopharyngeal | taste on posterior tongue, swallowing, gag reflex, salivation |
| X - vagus | autonomic control of heart, lungs, GI tract, swallowing, speech, gag reflex |
| XI - spinal accessory | shoulder shrug and neck turn |
| XII - hypoglossal | tongue symmetry and position |
| assessment of the CNs | involves focused, relevant assessments requires multi-modal approach essential to establish a baseline on which to compare future assessments |
| brief CN assessments | visual acuity - snellen chart, confrontation: CN II eye movements - 6 card fields, PERRLA: CN III, IV, VI sensation: CN V tongue movement: CN XII facial movement: CN VII shoulder shrug, neck movement: CN XI |
| 20/20 vision | normal vision, can read from 20 ft away |
| CN I | olfactory tests for smell don't typically test bc can be from normal head cold |
| CN II | optic assessing confrontation |
| 6 cardinal fields of gaze | assesses extraocular muscle function and the CNs that control them (CN III, IV, VI) assess for smooth, coordinated eye movements in all 6 directions checking for nystagmus, no strabismus, no diplopia |
| nystagmus | involuntary jerky eye movements |
| strabismus | misalignment/crossing of eyes might only appear when testing eye gaze |
| diplopia | double version reported by the patient |
| pupillary light reaction | PERRLA |
| checking pupils: ISSUES | pinpoint eyes: drugs! huge pupils |
| when checking pupils, assess accommodation | which is the eyes ability to adapt for near vision |
| ptosis is a problem with | the levator muscle causes droopy eyelid |
| ptosis means problem with what CN | CN III |
| facial sensation CN V | trigeminal motor function and sensory function |
| motor function | palpate temporal and masseter muscles as patient clenches teeth |
| sensory function | test light sensation with cotton ball over |
| facial movement CN VII | ask pt to raise eyebrows, close eyes tightly, smile, puff out cheeks |
| why dont we typically test sense of taste | because so many things can affect this, increase of age = taste buds die off |
| CN XI | spinal accessory motor function - rotate head against resistance, shrug shoulder against resistance |
| advanced CN testing | VIII - acoustic and vestibulocochlear IX - glossopharyngeal X - vagus |
| VIII - acoustic and vestibulocochlear | whisper test (hearing) rinne & weber (use tuning fork to differentiate type of hearing loss) |
| IX - glossopharyngeal X - vagus | taste, swallow, gag, voice - hoarse? dysphagia? |
| quick CN assessment is what we | do at bedside |
| quick CN assessment entails | PERRLA, facial expression, speech, have patient smile/frown, stick out your tongue, assess hand grasps/pedal pushes |
| assessing the motor system for | body position involuntary movements tone, strength, equality coordination - age dependent to an extent |
| body position | relaxed, normal position/shape ask if they have an involuntary movements or tremors |
| involuntary movements | tremors tics - brief repetitive movements, winks, shrugging fasciculation - involuntary contraction/twitching, under skin dystonia - grotesque twisted postures |
| also assess motor system for | muscle atropy/wasting hypotonic/flaccid muscles increased resistance - spasticity |
| paresis | weakness |
| plegia | absence of strength or paralysis |
| hemi | one side of the body, arm and leg |
| para | trunk and lower limbs, wheel chair |
| quadri | all 4 limbs and torso |
| easy assessment for muscle movement | hand grasp and pedal pushes |
| what can muscle movement abnormalities be caused by | stroke, SCI, neurological diseases, nerve damage |
| motor system assessment of neuro status: coordination | muscle strength cerebellar system for rhythmic movement and steady posture vestibular system for balance and coordinating eye, head, and body movements sensory system for position sense |
| how to assess coordination | gait walk heel to toe walk on heals, walk on toes hop in place with shallow knee bed step on stool of rise from seat without using arms |
| ataxia | gross lack of coordination of muscle movements dysfunction of parts of the nervous system that coordinate movement |
| people with ataxia walk like | they're drunk |
| ataxia is caused by | hereditary, parkinsons and huntingtons brain damage, alcohol and drugs, tumors |
| stance and balance | romberg's test pronator drift test |
| rombergs test | eyes open = steady stance eyes closed = patient will sway |
| pronator drift test | closed eyes, palms up = arms will pronate as they drift down |
| what is sensory | pain, position and vibration, light touch, discrimination compare for symmetry! |
| pain - sensory system assessment | sensation! is it sharp or dull? use a broken cotton swab or paper clip avoid the word pain |
| position - sensory system assessment | have pt close their eyes, ask them to tell you if you are moving their toe up, down, left, right |
| vibration - sensory system assessment | use tuning fork, start distal to save time |
| light touch | use cotton ball, touch cotton ball to pts skin, while their eyes are closed, have them tell when they feel the cotton ball touching their skin |
| discrimination | stereognosis graphesthesia |
| stereognosis | recognizing an object using the sense of touch |
| graphesthesia | recognize writing on the skin using the sense of touch |
| plantar reflex | stroke up the lateral side of the sole and across the ball of the foot to just below the great toe plantar flexion of the toes = normal response |
| plantar reflex is a | negative babinski sign |
| positive babinksi | abduction of the toes with dorsiflexion of the great toe is something you do not want to see in an adult |
| clonus | series of involuntary muscle contractions due to sudden stretching of the muscle |
| clonus causes | large motions that are usually initiated by a reflex |
| neuro assessment tools - glascow coma score | GCS 3 areas of assessment - eyes open, motor response, verbal scale desired/perfect score is 15 |
| GCS: eyes open | spontaneous = 4 to verbal command = 3 to pain = 2 no response = 1 |
| GCS: motor response | obeys command for movement = 6 purposeful movement to painful stimuli = 5 withdraws in response to pain = 4 flexion in response to pain = 3 extension response in response to pain = 3 no response = 1 |
| GCS: verbal scale | oriented = 5 disoriented/confused = 4 inappropriate words = 3 incomprehensible sounds = 2 no response = 1 |
| stroke warning signs | sudden numbness or weakness of the face, arm, or leg; especially on one side of the body sudden confusion, trouble speaking/understanding sudden trouble seeing in one or both eyes sudden trouble walking/dizziness, loss of balance/coordination |
| FAST warning signs | F = face drooping A = arm weakness S = speech difficulty T = time to call 911 |