Neurological Disorders Flashcards
Acute autoimmune attack on peripheral nerve myelin - antibodies destroying the myelin that allows motor neuron signal - end up mostly weakness and paralysis - not interfere with pain sensation
Demyelination
Ascending paralysis (Ground to Brain) - remits same way - head to feet
Dyskinesia/paresthesias (lot weakness)
Flaccid paralysis (not interfere with pain receptors) and LOT severe pain
Resp. impairment when reaches level diaphragm - thoracic muscles that help us breathe affected first
acute/chronic
Chronic - disease process stops somewhere and not remit
3 phases - acute (1-4 weeks - active: progressing forward and have further paralysis; stays here until no further advancement); plateau (days up to two weeks - stays exactly where at; not remit or go forward); recovery (2 months to 4 yrs - get back to norm state after disease process
Aka Acute idiopathic polyneuritis
Patho - Neurological disorders - Guillain-Barre Syndrome
Viral Infections (most common)
Campylobacter jejuni 25-50%
H. influenza
Mycoplasma pneumonia
HIV
Immunization - some studies
Immune disorders - other disorders set this off
Other stresses in body cause it
Triggers - Neurological disorders - Guillain-Barre Syndrome
Begins in lower extremities
With Muscle weakness leading to paralysis
Diminished reflexes (Hypo-reflexia)
Ascending paralysis - up to head
Respiratory failure - start with thoracic muscles - not able breathe first; if progresses upward - will lose airway - often end up on ventilator
2-4-week peak severity
Can last Longer = chronic inflammatory demyelinating polyneuropathy/demyelination
CM - Neurological disorders - Guillain-Barre Syndrome
Diagnosis
CSF elevated protein - lumbar puncture for this elevated protein
Loss of nerve conduction
Critical care needed
Mechanical ventilation - often intubated
DVT/PE prophylaxis - not moving at all; no muscles help pump blood back up to heart - SCDs and heparin
IVIG-decrease circulating antibodies attacking myelin
Med treatment - Neurological disorders - Guillain-Barre Syndrome
Ineffective breathing pattern - #1 depending on where paralysis
Impaired gas exchange
Impaired physical mobility
Imbalanced nutrition: Inability to swallow - feed through PEG tube, NG tube, post-pyloric tube, TPN through central line
Impaired verbal communication
Anxiety - not affecting mental status; only motor neuron
Fear
N. diagnosis - Neurological disorders - Guillain-Barre Syndrome
Maintain respiratory function - watching and assessing as not able breathe and take action quickly - must report symp and move quickly
Enhancing physical mobility - lot passive ROM - not lose muscle mass while paralyzed
Providing good adequate nutrition - watching for infection if have central line and tolerating tube feeding
Improved communication
Decreased anxiety - med/calm enviornment
Monitoring for complications - BIG ONE
N. interventions - Neurological disorders - Guillain-Barre Syndrome
Autoimmune disorder affecting myoneural junction. - normal Ach released from muscles - antibodies onto muscle and stopping Ach from being absorbed - muscle weakness and some paralysis
Acetylcholine receptor sites impair transmission/impaired
Decreased receptor stimulation
Muscle weakness escalates with continued activity - limited amount of Ach
Women greater than Men
75% thymus gland issue - thioma and need thymus gland removed
Pathophysiology - Neurological disorders - myasthenia gravis
Diplopia/ptosis (80%) - Double vision and drooping eyelids
Face and throat muscle weakness - meds 45-60 min to prevent aspiration isues
Dysphonia - diff talking
Dysphagia - Increase risk choking/aspiration
Generalized weakness - motor involvement so lots pain
Pure motor; no sensory involvement
CM - Neurological disorders - myasthenia gravis
Acetylcholinesterase inhibitor test - only used diagnose; not work as long-term therapy; marked improvement of weakness - esp in face
WARNING: likes cause cardiac arrhythmias/arrest - if do this want know antidote (atropine) available
Lab: acetylcholine antibodies
Ice test - hold over area that has muscle weakness - allows for reabsoprtion and see symptom disappear
Repetitive nerve stimulation - weaken area
Diagnostics - Neurological disorders - myasthenia gravis
Pharmacologic therapy: Pyridostigmine; Main med; increasing concentration of available acetylcholine 4X day
Take before meals (45-60 minutes before)
Therapeutic plasma exchange - Plasmapheresis; looks like dialysis; removes offending antibodies
Surgical management
Thymectomy
Med surg treatment - Neurological disorders - myasthenia gravis
Ineffective airway clearance - weaker not able get airway open
Interrupted family process
Fatigue
Impaired physical mobility - big deal with myasthenic crisis; could also have complete resp failure and need be intubated
Imbalanced nutrition
Impaired swallowing
Hard time with getting muscles move
N. diagnosis - Neurological disorders - myasthenia gravis
Conserve energy
Consistent routines
Avoid excessive activity/stress
Avoid High environmental temp - decreased Ach ability be reabsorbed
Medication prior to meals - Prevent choking/aspiration
Tape eye closed /eye drops - crisis/relapse - Prevent corneal damage
N. interventions - Neurological disorders - myasthenia gravis
Loss of dopamine stores
Results in more excitatory neurotransmitters
Imbalance affects voluntary movement
Males greater than Women
15% early onset due to genetic mutation
Involuntary movements: tremors, walking, eating (high rate aspiration)
Patho - Neurological disorders - Parkinson’s Disease
Four cardinal signs
Tremor
Rigidity
Bradykinesia/akinesia - slow to no movement
Postural Instability
2 Types
Tremor dominate
Non-tremor dominate - a kinetic-rigid and postural instability
Diagnosis - need at least 2 of 4 cardinal symp
CM - Neurological disorders - Parkinson’s Disease
Unilateral (1) limb involvement
Minimal weakness
Hand and arm trembling
Stage 1 (Initial Stage) - Neurological disorders - Parkinson’s Disease
Bilateral limb involvement
Masklike face – flat affect and face
Slow, shuffling gain - not able walk well - gait disturbances
Stage 2 (Mild Stage) - Neurological disorders - Parkinson’s Disease
Postural instability
Increase gait disturbances
Stage 3 (Moderate Disease) - Neurological disorders - Parkinson’s Disease
Akinesia - not moving well at all and lot rigidity
Rigidity
Stage 4 (Severe Disability) - Neurological disorders - Parkinson’s Disease
As get into later stages - also psychiatric component - can have hallucinations
Stage 5 (Complete ADL Dependence) - Neurological disorders - Parkinson’s Disease
Good History
Four cardinal signs (need 2 of 4)
Diagnosis confirmed by a positive response to a levodopa trial - relieve manifestations of PD
PET – Rule out for any other disease process; not diagnostics for PD
Single-photon emission CT – Rule out for any other disease process; not diagnostics for PD
Diagnostics - Neurological disorders - Parkinson’s Disease
Pharmacotherapy
Levodopa-most effective; reuprtake
Converts to dopamine –relieves manifestations
Surgical Treatment
Deep brain stimulation (DBS)
Electrode implanted/blocks anticholinergic release
Blocks Ach allowing more dopamine to be absorbed
Medical management - Neurological disorders - Parkinson’s Disease
Impaired physical mobility
Self-care deficits
Constipation - lack good phys mobility
Impaired nutrition - high risk of aspiration
Risk for injury
Impaired verbal communication
Knowledge deficit
Family and patient
N. diagnosis - Neurological disorders - Parkinson’s Disease
Improve mobility within safety
Enhancing self care activities - providing assistive devices, built up spoons, walkers, help them be as independent
Improved bowel elimination - up walking; stool softeners
Improved nutrition - Aspiration risk; speech therapy
Enhanced swallowing
Assistive devices
Family/Pt education - lots pt and fam edu - PT, OT, speech
N. interventions - Neurological disorders - Parkinson’s Disease
Cognitive, functional, and behavioral changes eventually destroy a person’s ability to function
Phys and mental
Subtle in onset; progress slowly
Not a normal part of aging
Non-Alzheimer dementias; Vascular dementia (multiple small infarcts in the brain that eventually cause the person not be able to func)
Patho - Neurological disorders - Dementia