Final Exam review Flashcards
Dementia background
-AD is most common
-prevalence is expected to increase
-huge cost to healthcare system
Social cognition
-recognizing other’s emotions
Learning and memory
-long term memory
-cued recall
-unprompted recall
Executive function
-planning
-decision making
-IADL functions
Complex Attention
-processing speed
-divided attention
Language
-object naming
-animal fluency
-receptive language
Early stages of dementia
-chronic cognitive decline
-Instrumental activities of Daily Living affected: Managing finances, medication managment, Housekeeping, driving, shopping, meal prep
Middle to later stages of dementia
-activities of daily living
-bathing
-toileting
-dressing
-grooming
-walking
-eating meals
Lab tests in demential
-used to rule out differential diagnosis
-Vitamin B12: < 400
-TSH
-CBC: anemia and infection
-BMP: hyponatremia
-HIV
-Syphilis
Mini-cog for dementia
-3 item repeat
-clock draw
-3 item recall
Medications that contribute to cognitive changes
-ANTICHOLINERGICS
-antihypertensives
-benzos
-corticosteroids
-hypoglycemic agents
-muscle relaxants
-opioid
-NSAIDs
-sedative hypnotics
Alzheimer’s risk factors
-age
-genetics
-vascular
-head injury
-poor education
-poor hearing
-depression
-social isolation
Alzheimer’s pathophysiology
-accumulation of lesions leads to neurodegeneration and cognitive decline
-Aggregated amyloid and tau
-begins 20 years before symptoms develop
-affects language. learning/memory, and executive function
Alzheimer’s lifestyle modifications
-Omega 3
-folic acid
-Vitamin B
-Vitamin E
-physical activity
-mental activity
-social engagement
-music therapy
Vascular dementia
-caused by stroke/TIA, uncontrolled BP, diabetes, high cholesterol
-affects executive function and complex attention
-Donepezil, galantamine, rivastigmine
Lewy Body Dementia(DLB)
-fluctuating cognition, hallucinations, parkinsonism
-affects learning/memory and cognitive function
–Donepezil, galantamine, rivastigmine
-avoid antipsychotics
-levodopa for parkinsonism
-fludrocortisone or midodrine for orthostatic hypotension
Frontotemporal Dementia (FTLD)
-affects younger patients
-behavioral disinhibition, apathy, and compulsivity
-NO PLAQUES OR TANGLES
-affects executive function and social cognition
-no FDA approved treatments
-nonpharmacologic interventions focus on safety and health maintenance
-AChE inhibitors may worsen symptoms
Type III diabetes
-insulin resistance in the brain leads to increased plaque formation
-impacts neurocognition
-risk is modifiable
Prevention of Dementia
-controlling cardio risks
-depression management
-social engagement
-early detection
Acetylcholinesterase Inhibitors: Dementia
-Donepezil
-Galantamine
-Rivastigmine
NMDA receptor antagonists: dementia
memantine
Monoclonal antibodies: dementia
-Docanemab
-Lacanemab
-Aducanumab
mild-moderate Alzheimer’s treatments
-donepezil
-galantamine
-rivastigmine
Moderate-severe Alzheimer’s treatments
-Donepezil
-memantine
-Rivastigmine PATCH
When should therapy be discontinued for dementia?
-no response in 3 months
-institutionalized with severe dementia treated >/= 2 years
-patient/family believe patient has stopped responding
-goal of slowing progression is no longer reasonable
how to taper dementia meds
-taper using 50% reductions q4w
Rivastigmine patch therapy interuptions
-<3 days: restart at same or lower dose
-> 3 days, retitrate starting at 4.6 mg/hr patch
Rivastigmine patch: switching from oral
-apply patch the day following last oral dose
- <6 mg oral=4.6 mg patch
- 6-12 mg oral=9.5 mg patch
Donepezil patch
-7 day patch
-refrigerated: allow to reach RT before applying
-lower back, upper butt, or upper outer thigh
-Switch from oral to patch: apply patch at same time as last oral dose
True or False: When initiating a new AChEI after severe side effects with another, a 3 week washout is required.
False, 1 week washout
-take in AM with food
-baseline HR needed
side effects of acetylcholinesterase inhibitors
-N/V
-diarrhea
-upset stomach
-syncope
-bradycardia
-insomnia/agitation
-increased pulmonary secretion
monitoring for AChEI’s
-BP and HR
-drug interactions with Beta Blockers, diltiazem, and verapamil
NMDA receptor antagonists side effects
-hypertension
-constipation
-dizziness
-headache
-aggressive behavior
Donanemab
-binds to b-amyloid and aids plaque removal through phagocytosis
-Significantly slows clinical progression at 76 weeks in those with low/medium tau or
combined low/medium and high tau
Lecanemab
-binds amyloid beta protofibrils
-moderately less decline in measures of cognition and function than placebo
Aducanumab
-blocks second phase of aggregation
-approval was controversial
Who are monoclonal antibodies more effective for?
-noncarriers
-heterozygotes
-males
-older ages
-white
clinical outcomes of donanemab and locanemab
-Significant decrease in the amyloid burden
-Slowed decline in CDR-SB dementia rating scale
Adverse effects of monoclonal antibodies
-ARIA-E: cerebral edema
-ARIA-H: cerebral microhemorrhages
-AVOID IN ANTICOAGULATED PATIENTS
Initiation of Lecanumab
-IV biweekly for 1 hour
-mandatory monitoring after infusion: 3 hours after 1st infusion, 2 hours after 2nd, 30 min after
-safety should be monitored at 2,3, and 6.5 months
-provider must be enrolled in a patient registry
Vitamin E: Alzheimers
-antioxidant
-may combat AD
-only use if prescribed
Fish oil: AD
-may reduce beta amyloid and inflammation
-high incidence of ADRs/bleeding
Vitamin B12: AD
-lower levels associated with neurocognitive disorders
-target >500
Prevagen and Ginko Biloba: AD
-impacts on oxidative stress
-inconsistent and unreliable benefit
Huperzine: AD
-natural acetylcholinesterase inhibitor
-mor studies needed
Primary Open Angle Glaucoma
-chronic, progressive
-open anterior chamber angle
-atrophy of optic nerve
-loss of ganglion cells and their axons result in optic nerve damage and visual field loss
-both eyes affected
risk factors for POAG
-intraocular pressure> 22 mmHg
- >40 years
-family history
-African or latino
-T2DM
-high myopia
-HX of eye trauma
-vascular disease
-smoking
Intraocular pressure (IOP)
- normal: 12-22 mmHg
- insensitive, nonspecific diagnostic and monitoring tool
-Patients with a normal IOP may still develop POAG and those with an IOP >22 may not
develop it
formation of aqueous humor
-in cilliary body
-Involves carbonic anhydrase,
alpha and beta adrenergic
receptors, and sodium- and
potassium-activated adenosine
triphosphatases
how does aqueous humor move into the anterior chamber?
-pushed between the iris and lens
-then through the pupil due to pressure is posterior chamber
How does aqueous humor leave the eye?
-filtration through trabecular meshwork to the Schlemm’s canal and
through the ciliary body and
suprachoroidal space
-(uveoscleral/unconventional
outflow)
True or false: As ganglion nerve cells die and axon loss increases, cup becomes larger than disk in glaucoma.
true
prognosis of POAG
-slow progression of months to years
-functional loss is NOT REVERSIBLE
-can be treated early on
goal of treating glaucoma
preserve visual field
initial target reduction reduction in glaucoma
> /= 25% reduction in IOP
-continually reassess
Medications that increase aqueous humor outflow
-rho kinase inhibitors
-alpha-adrenergic agonists
-prostaglandin analogues
-cholinergic agents
Medications that decrease aqueous humor production
-Rho kinase inhibitors
-alpha-adrenergic agonists
-beta-adrenergic blockers
-carbonic anhydrase inhibitors
Keratitis
corneal inflammation
Macular edema
swelling in the macula
Uveitis
swelling of the uvea, the colored portion of the eye
Conjunctival hyperemia
redness of the eye
Blepharitis
inflammation of the eyelid
conjuctivitis
pink eye
corneal edema
swelling of the cornea due to fluid accumulation
Blood dyscrasias
a general term for disorders of the blood and its components
True or false: Systemic effects occur when the volume of eye drop exceeds the volume the eye can absorb so extra volume drains through the tear duct to nose.
true
how do you prevent nasolacrimal drainage?
-Putting pressure on tear duct and
closing eyes
True or false: Nasolacrimal occlusion increases risk and severity of systemic side effects
False. reduces risks
Prostaglandin analogues MOA
-increase uveoscleral and trabecular outflow of AH
Prostaglandin analogues considerations
-darkens hazel eyes
-avoid in pregnancy
-QHS
Prostaglandin analogues side effects
-EYELASH CHANGES
-HYPERPIGMENTATION
-HERPES VIRUS ACTIVATION
KERATITIS
-blurry vision
-burning/stinging
-dry eyes
-conjunctival hyperemia
-macular edema
-uveitis
-well tolerated overall
examples of Prostaglandin analogues
-LATANOPROST
-Bimatoprost
-tafluprost
-Travoprost
-Latanoprostene bunod(prodrug)
Beta-Adrenergic Blockers MOA
-reduce AH production by ciliary body
Beta-Adrenergic Blockers considerations
-use with caution and ensure NS technique if asthma, COPD, or CVD (hypotension, bradycardia, heart block, HF)
-given BID
Beta-Adrenergic Blockers side effects
-BRADYCARDIA
-BRONCHOSPASM
-DEPRESSION
-fatigue
-hypotension
-syncope
-burning/stinging
-dry eyes
-keratitis
-Uveitis
Selective Beta-Adrenergic Blockers for glaucoma
Betaxolol
Non-Selective Beta-Adrenergic Blockers for glaucoma
Timolol
-Carteolol
-Levobunolol
-Metipranonolol
Alpha-Adrenergic Agonists MAO
Decrease AH production & increase uveoscleral outflow
Alpha-Adrenergic Agonists considerations
-BID/TID: NS technique may improve response and allow for longer dosing interval
-SAFEST IN PREGNANCY
-caution with CVD, kidney disease, cerebrovascular disease, diabetes, hypertension, MAOIs, TCAs
Alpha-Adrenergic Agonists side effects
-BLEPHARITIS
-ALLERGIC TYPE RXN
-blurry vision
-burning/stinging
-conjunctivitis
-dry mouth
-fatigue
-GI upset
-headache
-hypotension
-somnolence
Selective Alpha-Adrenergic Agonists for glaucoma
-BRIMONIDINE
-Apraclonidine
Cholinergic Agent MOA
Contraction of ciliary muscle causes scleral spur to unfold
trabecular meshwork, increasing AH outflow