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114 Cards in this Set
- Front
- Back
List the THREE MAJOR neurological dysfunctions that will be covered:
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Parkinson's Disease, Multiple Sclerosis, & Myasthenia Gravis
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Parkinson's Disease= a _____ progressive neurodegenerative disease of the ____, involving a deficiency in the production of ______, (a neurotransmitter), which acts to balance the effects of _____ which is responsible for _____ ________
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CHRONIC, CNS, DOPAMINE, ACH (acetylcholine), MUSCLE CONTRACTION
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Prevalence of Parkinson's. Greater in men or women?
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Men
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What is the mean age of Parkinson's Disease?
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40-70
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Risk Factors associated with Parkinson's? (5)
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Increases with Age, brain tumor (mess you up), your genetics, environmental exposures (CO, Mercury), & ILLEGAL DRUG USE (amphetamine & methamphetamine) Hypoxia (oxygen deficiency) can cause PD Hydrocephalus (Fluid accumulating in brain) Infections Tumors & Strokes Trauma, Huntingtons |
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PD involves degeneration of the dopamine-producing neurons in the substantia ___ of the midbrain
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nigra, disrupting the balance between dopamine and Ach in the basal ganglia
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What is essential for NORMAL functioning of the extrapyramidal motor system, including control of support, posture, and voluntary motion.
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Dopamine a neurotransmitter
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What are the 3 Classic Hallmark symptoms of Parkinson's? The first one we will talk about is often the first sign. The fourth?
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TREMOR at rest (can affect handwriting), more prominent at rest, RIGIDITY (increased muscle tone), SLOW MOVEMENTS/BRADYKINESIA OR LACK OF MOTOR MOVEMENT or 4th= Postural Instability
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What aggravates the tremors? The hand tremor is described as?
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Emotional stress or increased concentration "pill rolling" Tremors= 1st sign |
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What is usually the second sign, after tremors?
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Rigidity = Increased resistance to passive motion when the limbs are moved through their range of motion (Jerky quality) by sustained muscle contraction.
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Early symptoms of Parkinsons
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Fatigue, Hand writing change
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Other symptoms include:
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Mask-like face- noted by family, autonomic symptoms: orthostatic hypotension, diaphoresis (sweating), flushing, dysphagia (difficulty swallowing), mood swings, dementia, progressive inability to do ADL's, gait changes, urinary changes Gradual & Insidious - Maybe slight change in speech patterns |
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PD id a significant cause of ____ and ____ (2 D's)
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Disability and Dementia
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PD= Inability to control ________
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Movements
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In a patient with PD, patients do not execute the autonomic activities that we do (Ex: Blinking, swinging arms when walking, swallowing saliva, self-expression with facial and hand movements, and minor movement of postural adjustment). There is a lack of _____ activity
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Spontaneous
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Many nonmotor symptoms (psychological symptoms) are present including?
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Depression, anxiety, apathy (lack of interest/enthusiasm), fatigue, pain, constipation, impotence (can't get or stay hard/sexual limits), short-term memory impairment.
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As the disease progresses, complications ____
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Increase
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Unfortunately, sometimes people with benign tumors have accidently been diagnosed with?
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PD
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What is responsible for the rigidity in PD?
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Sustained muscle contraction, which causes soreness, being tired. Slowness of movement results because it inhibits the alternating of contraction and relaxation in opposing muscle groups.
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What is evident in the loss of automatic movements?
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Bradykinesia-Pt. does not exhibit the autonomic movements & there is a LACK of SPONTANEOUS ACTIVITY. NOT SPONTANEOUCS (Why they have stooped head, masked face, drool, shuffle, legs fixed)
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Define Dyskinesias or Akinesia=
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Involuntary Movements vs. Complete immobility Neuropsychiatric problems (depression, hallucinations, and psychosis can happen) |
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As swallowing becomes more difficult, what consequences follow?
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Malnutrition or aspiration (breathing material into the airways)
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Debilitation may lead to? (3)
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Pneumonia, UTI's, and Skin breakdown
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What other random symptom can happen?
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Sleep disturbances
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Common reasons for hospitalization. Examples:
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Complication r/t aspiration, which can lead to PNEUMONIA and MALNUTRUTION
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Other complications:
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Complications r/t immobility-> pneumonia, UTI, Skin breakdown, & constipation
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Is there a specific diagnostic test for PD?
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NO
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What is the diagnosis based on?
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History & Clinical Features
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A diagnosis can be made when at least 2 of the three characteristics are present=
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Tremor, rigidity, and Bradykinesia
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What is the ultimate confirmation?
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Positive response to antiparkinson drugs
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Specific diagnostic tests in relation to PD?
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History and Physical exam (H&P), MRI, CT, EEG, (cat, mouse, elephant) and therapeutic response to Levodopa (increases dopamine in the brain) or Carvidopa
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Is there a cure for PD?
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NO
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What is drug therapy aimed at?
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Correcting the imbalance of neurotransmitters with the CNS>
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Interventions. We need to monitor response to meds. What is important, most of all, regarding medications?
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TIMING OF THE MEDS
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We need to monitor
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Side Effects, especially if using a high dose
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What is another medications for Parkinsons?
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Sinemet, Eldepryl
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Sinement=
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A combination of Carbidopa & Levodopa, which helps to decrease Rigidity/Akinetic symptoms! (THINK SUM)
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Eldepryl helps to?
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Enhance the sinemet effect (E FOR ENHANCE)
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Within 3-5 years of treatment with standard Parkinson's drug treatments, many patients experience episodes of?
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Hypo mobility (Inability to rise from a chair, to speak, walk)
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These episodes of hypo mobility can occur toward the end of a dosing interval with standard medications, known as?
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"wearing off syndrome" -dose wearing off
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The medications work best when they are taken on?
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An empty stomach
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What type of patches are available?
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Transdermal patches
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Due to the fact that the effectiveness of Sinemet wears off after a few years, they like to initiate therapy first with?
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Dopamine (DA) receptor agonists
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Examples of these drugs:
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Parlodel & Requip, which DIRECTLY stimulate the dopamine receptors. When more severe symptoms come into play, they will need to add the sinemet
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What are the last classification of drugs that are used to manage PD? What do they help control?
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ANTIcholinergics: Help control rigidity and TREMORS
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How do they work?
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Decrease the activity of Ach, providing balance between dopaminergic and cholinergic actions
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Examples of these anticholinergics
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Cogentin & Artane
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If an individual has failed to respond to drug therapy, OR if you have someone with SEVERE motor symptoms, what might be considered?
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Surgery
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Surgical procedures fall into 3 categories. Name them.
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Destruction, DBS (deep brain stimulation), and transplantation
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Stereotactic Pallidotomy
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A burr (drill) hole to target the area (located by previous CT or MRI of brain)
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Deep Brain stimulation
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Electrodes placed in THALAMUS and a CURRENT is delivered through an implanted pacemaker generator (current delivered to brain location) (can be adjusted to control symptoms better and is reversible, unlike ablation
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What do these surgical procedures aim to do?
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Decrease the increased neuronal activity produced by DA depletion DBS can improve motor function and reduce dyskinesia+medication usage |
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Why is nutrition so important for someone with PD?
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They have side effects of malnutrition (dysphagia) and constipation |
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What kinds of foods do we want?
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Ones that are easily chewed and swallowed
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6 small meals are less tiring than?
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Eating 3 large meals for the patient with PD
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High protein can actually _____ the effectiveness of ____, so we need to limit protein to_____ meals
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Decrease, Sinemet
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Maximum goals for the patient with PD?
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Maximize neurological function, maintain independence and ADL's, optimize psychological well being
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Other interventions consist of:
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Physical Therapy (to strengthen and stretch muscles), Speech Therapy, & Social Work, Balanced Diets
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MS
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Again, a CHRONIC, DEGENERATIVE disease of the CNS
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MS characterized by?
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Demyelination of nerve fibers in the brain and spinal cord (intermittent damage of the sheaths that cover nerve cell AXONS) Intermittent: occurring at irregular intervals |
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Pathophysiology. Demyelination impairs the ____ of nerve impulses
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Transmission
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The destruction of myelin/cause of MS may be due to?
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Autoimmune reactions, genetics, infectious (viral), susceptibility appears to be inherited, or Trauma Specific cause unknown |
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MS characterized by?
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Relapses, Exacerbations, & Remissions
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Who is more likely to get MS men or women?
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Women
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Age range
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15-40 yoa
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MS is a major cause of ____ in young adults
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Disability
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There is a family history ____ of the time, so evidence of genetic component
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15%
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Precipitating factors that induce exacerbations/contribute to onset of disease:
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Infections, stress (emotional and physical), fatigue, & pregnancy
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Pregnancy: Usually okay during pregnancy, but during _____ period, may begin to demonstrate____?
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Postpartum; initial symptoms of diease
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Clinical symptoms vary according to the areas of the ____ involved
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CNS
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Symptoms of MS:
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BILATERAL LOWER EXTREMITY WEAKNESS (BLE weakeness), Fatigue |
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Later, what kind of symptoms come?
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Bowel & Bladder problems. May have a spastic bladder(frequency, incontinence) OR Flaccid Bladder-Urinary retention, OR BOTH
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Another symptom=Uhthoff's sign:
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Temporary worsening of vision or neuro functions, following increased exertion/heat exposure
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Emotional lability:
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Involuntary crying or episodes of laughing
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Like Parkinson's, there is no diagnostic test, so diagnosis based on?
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H&P history, along with CLINICAL MANIFESTATIONS + presence of multiple lesions over time on an MRI
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List all diagnostic tests affiliated with MS on powerpoint:
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MRI of brain/spine (both affected plaques), CSF analysis (increase in immunoglobin G-GRUMPY, increased monocytes and lymphocytes), evoked potentials of optic and auditory pathways (delayed responses nerve conduction from ear to brain)
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Characteristic white-matter lesions are scattered through the brain and spinal cord, evident on a?
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Scan
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Patient Interventions:
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Avoid people with infections, live in WARM climate (not too hot or cold), stress reduction/relaxation techniques, need to avoid pregnancy or plan carefully, prevent UTI (bladder problems)
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Because there is no cure for MS, collaborative care is aimed at?
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Treating the disease process and providing symptomatic relief
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What drugs are helpful in treating acute exacerbations of the disease?
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Corticosteroids, (prednisone) Think inflammatory, break out |
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What drugs help to treat the slow progression aspect of MS and treat relapses (ABC)
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Immunosuppressant's (Avonex, Betaseron, Capaxone) THINK ABC :)
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What can help to treat urinary retention
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Cholinergics
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What can help to treat urinary frequency and urgency?
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ANTIcholinergics
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What other medications may be supplied (not specific ones), considering symptoms?
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muscle relaxants, and stool softeners
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What types of medications may help with fatigue?
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CNS STIMULANTS TO WAKE YOU UP (Example: RITALIN)
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Interventions for MS- Balance (with BLE weakness)
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PT, assistive devices
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With fatigue, we will also want to treat episodes of?
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Vertigo, Syncope (temporary loss of consciousness)
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We want to treat BOWL AND BLADDER PROBLEMS T/F?
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True
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We want to monitor and treat (similar to parkinsons) How can we do this?
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Tremors and Spasms-evident with voluntary movement. By lifting weights to stretch muscle, we can increase the strength of them, thereby decreasing the tremors
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___ pain may also result, due to BLE weakness, fatigue, etc.
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Chronic
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Sensory problems include:
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Optic neuritis (inflammation of optic nerve) Dipliopia (double vision) Tinnitis (ringing) SPEECH |
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Diet precautions:
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Increase protein, V b12, and C, Cranberry juice to prevent UTIS
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Explain Myasthenia Gravis= ______ disease
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CHRONIC AUTOIMMUNE
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Characterized by disease of the _______ _________????
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Neuromuscular Junction, with fluctuating weakness of muscle groups
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_____ of nerve TRANSMISSIONS (not happening) at the neuromuscular junction. Due to inadequate release of?
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Failure; Ach, OR inadequate response of muscle fibers to ach (either ach not released, or the muscle fibers are not responding)
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Periods of _____ and ______
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Exacerbations and Remissions (like MS)
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Myasthenia Gravis greater in?
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Women (think of women being weaker with their muscles) age 20-40 actually > in men though, after 50
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Risks for Myasthenia Gravis (2)
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Tumor of Thymus gland, or it can just coexist with another autoimmune disease
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Symptoms of Myasthenia Gravis:
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Fatigue, problems with eyes (ptosis=drooping of upper eyelid), problems closing eyelids), neck weakness, head bobbing, chest wall muscle weakness, RESPIRATORY COMPLICATIONS and bowel/bladder problems (obviously if you have muscle weakness)
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Muscles most often involved include:
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Eyelids, those for chewing, swallowing, speaking, and breathing (why the resp issues)!
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Diagnostic Tests can be on?
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History and Physical Exam. Also EMG and TENSILON TEST
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What could an EMG show?
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Decreased response to repeated stimulation of hands, indicative of muscle fatigue
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Tension Test would show?
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Would show IMPROVED muscle contractility after IV injection of anticholinesterase, which blocks enzyme of acetylcholinesterase inhibits the acetylcholinesterase enzyme from breaking down acetylcholine, thereby increasing both the level and duration of action of the neurotransmitter acetylcholine. |
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Interventions: Monitor closely for ____ complications
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RESPIRATORY
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An extreme respiratory complication that can result frm Myasthenia Gravis=
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Myasthenia Crisis (Resp distress, which is brought on by increased muscle weakness making it more difficult to breathe, talk, or swallow (dysphagia)
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We also want to monitor for a _____ crisis:
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Cholinergic
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Cholinergic Crisis Symptoms and Cause
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Abdominal cramping, diaphoresis (sweating), muscle cramps Side effects of too much medication |
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If this happens, what can we give?
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Anticholinergic drug (atropine)
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Overall goals of someone with M.G
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Return to normal muscle endurance, manage fatigue, avoid complications, and maintain a quality of life appropriate to the disease course
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A patient admitted to the hospital usually has a ?
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Respiratory tract infection or is in acute myasthenic crisis
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Other treatments for Myasthenia Gravis:
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Thymectomy ( Test of culture With Thymic Tumor) Plasmaohersis: Removing circulating antibodies |
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Medications should be administered when?
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30 min before meals to promote swallowing and help with chewing
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Medications again:
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Cholinesterase Inhibitor (Pyridostigmine), first line treatment. Take at same time daily, Immunosuppresants (Immuran, Prednisone), and Igg (IV, acute management)
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Other tips for Myasthenia Gravis
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Aspiration precautions, avoid people with infections (on immunospressant drugs), avoid extreme temps, allow for rest periods, have high calorie meals (small+frequent), speech therapist to evaluate swallowing, WEAR MEDIC BRACELET
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