patho study guide

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  • 8/3/2019 Patho Study Guide

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    MS

    Chronic, progressive degenerative disorder of the CNS system

    Autoimmune disease

    Lack of coordination and movement

    Shaking, tremors and muscular weakness

    Nystagmus(rapid movement of eyes), urinary/bowel incontinence Motor/sensory impairment (hemiparesis/ataxia)

    Treat with corticosteroids and immune suppressants

    Alzheimer's

    Rapid progression at a young age (genetics)

    Sporadic- unknown, onset later, slower progression

    Atropy of the brain

    Reduction in neurotransmitter acetylcholine (Decrease in acetylcholine-memoryloss)

    Treat with Donepezil (Aricept)

    Acetylcholinesterase inhibitors

    Treat mild to moderate Alzheimer's (early)

    Improving cholinergic/parasympathetic function

    SLUDGE> salivation; lacrimation; urination; diarrhea; GI distress; Emesis

    May cause dizziness

    Adverse effect: peptic ulcers

    Notify HCP: ab pain, coffee ground emesis, nausea, diarrhea, change in color ofstool, & new symptoms

    Tarcine (Cognex) heptatoxicity

    Rivastigmine (Exelon) weight loss

    Used in conjunction with acetylcholinesterase inhibitorsMemantine (Namenda): reduced glutamate, found in Alzheimer ptsAnti-inflammatory COX2 inhibitorsAnti-pyschotic agentsAnxiolytics (for anxiety & depression)

    PARKINSON'S DISEASE

    unknown cause

    degenerative disease of basal ganglia & dopamine deficiency

    hand tremors @ rest, muscle rigidity, bradykinesis (slow movement), loss of

    balance (humped over), shuffling gait, dsyphagia, orthostatic hypotensionTreat with Dopaminergic & anti-cholinergics

    Levodopa (Larodopa) Dopaminergic

    converted to dopamine in the CNS

    Carbidopa (Simemet) prevents peripheral destruction of levodopa

    Use Sinemet conjunctively with Levodopa to reduce Levodopa dose

    AD/SE: blurred vision; memory loss; hepatotoxicity; dark urine or sweat; gastricirritation; dizziness; dry mouth

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    eat shortly after, but avoid high protein b/c it decrease absorption

    Avoid taking multi vitamins

    Notify HCP of urinary retention, involuntary movement; behavioral changes; severe N/V;

    new skin lesions; spasmotic eye winking; protrusion of tongues (signs of toxicity)

    Amantidine (Symmetrel) Dopaminergic

    increase affect of dopamine in CNS

    Benztroepine (Cogentin) Anti-cholinergic inhibits acetylcholine; blocks cholinergic

    AD/SE: dry mouth; constipation; tachycardia; blurred vision; urinary retention

    Caution w/ pts w/ narrow angle glaucoma; myathenia gravis, GI/GU tractobstruction, BPH

    Avoid taking antacids or anti-diarrhea within 1-2 hrs of medsHELPFUL HINTS

    Dry as a bone (dry mouth, constipation- increase fluids); Hot as a hare (avoidsunlight; sunglasses); Red as a beet (association with heart- tachycardia;palpitations); Mad as a hatter (behavioral changes depression); blind as a bat(blurred vision)

    Myasthenia Gravis neuromuscular disease; weakness of voluntary muscle

    loss of acetylcholine receptors

    Sx: muscle weakness; diplopia

    Treat with Anticholinesterase

    Amyotrophic Lateral Sclerosis (ALS)

    loss of motor neurons

    Sx: muscle atrophy; hyperreflexia; spasticity;

    Treatment is supportive care

    SEIZURES

    Acute: temporary condition irritation to the brain

    Chronic: injury to the brain (seizure disorder/epilepsy)

    Phases: aura (prior to seizure); ictus (seizure); Post ictal (following)

    Types:

    Partial/Focal a. simple abnormal sensation/localized motor activityb. complex pt is awake but unaware; involuntary

    Generalized -a. absence (petit mal) last few seconds; see in children

    b. atonic few seconds; falling for no reasonc. tonic-clonic aura; intense muscle contraction; loss of bowel/bladder control; shallowbreathing; disorientation/deep sleep after