Chapter 20 Flashcards
How is Alzheimer’s diagnosed
PET scan
Parkinson’s Disease ANS symptoms
decreased tears, sexual function, orthostatic hypotension, cardiac dysrhythmias, constipation incontinence, heat intolerance
Anticholinergics use
parkinson’s-early stage
Anticholinergics function
Blocks acetylcholine
Inhibits overactivity in brain
Triexyphenidyl hydrochloride (Artane) and Benztropine mesylate (Cogentin) category
Anticholinergics
Dopaminergics
ex: levodopa #1 tx
Dopaminergics contraindications
narrow-angle glaucoma & undiagnosed skin lesions
Dopaminergics teaching
Increase fiber and fluids
Avoid food and drugs high in pyridoxine (B6) (breads)
May take several months for full effect
Abruptly stopping the drug may cause Parkinsonism crisis
Dopaminergic use
inhibit enzymes that destroy levodopa or directly activate dopamine receptor in the brain
Dopaminergic adverse effects
nausea/vomiting, dyskinesias, postural hypotension, psychosis, dark urine and sweat, activation of malignant melanoma
Dopaminergic Adjunct Agents cautions
Liver function impairment
increases K+ and BUN
Dopaminergic Adjunct Agents adverse effects
convulsions, shock
Dopaminergic Adjunct Agents examples
Bromocriptine (Parlodel)
Ropinirole (Requip)
Pramipexole (Mirapex)
Pergolide (Permax)
MAO-B inhibitors use
parkinson’s
Enhance effects of L-dopa
not used alone!
MAO-B inhibitors ex
Selegiline (Eldepryl)
Rasagiline (Azilect)