final: chronic neuro drugs Flashcards

1
Q

parkinson’s is an excess of ….. and a depletion of ….

A

excess of acetylcholine

depletion of dopamine

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2
Q

in order to treat parkinsons’ drugs must

A

increase dopamine

decrease acetylcholine

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3
Q

parkinson’s treatment only does what with the disease

A

delay the progression

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4
Q

levodopa/carbidopia (sinemet) used for

A

parkinson’s

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5
Q

Levodopa/Carbidopa (Sinemet) …. levodopa becomes

A

levodopa becomes dopamine in the brain and crosses the BBB

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6
Q

Levodopa/Carbidopa (Sinemet)… carbidopa does what

A

carbidopa gets the levodopa to the brain but doesnt cross the bbb

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7
Q

if Levodopa/Carbidopa (Sinemet) fails, suspect

A

a misdiagnosis of parkinson’s

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8
Q

SE of Levodopa/Carbidopa (Sinemet)

A
  • n/v
  • cardiovasccular
  • hallucinations, CNS effects
  • activates meanoma
  • dyskinesias
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9
Q

Levodopa/Carbidopa (Sinemet) drug interactions

A
  • MAO-I (hypertensive crisis)
  • antipsychotics (block dopamine)
  • high protein foods reduce terapeutic effects
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10
Q

instruct pt taking Levodopa/Carbidopa (Sinemet) to do what with meals

A

spread protein throughout the day

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11
Q

pramipexole (mirapex) uses

A

used for PRA-kinsons

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12
Q

pramipexole (mirapex) action

A

non-ergot dopamine agonist= direct activation of dopamine in striatum

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13
Q

pramipexole (mirapex) can be used how

A

alone or as adjunct to Ldopa/Cdopa

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14
Q

do not give pramipexole (mirapex) to those with impulse control disorder why

A

because it can cause SE like compulsive gambling (this is because of the direct dopamine activation_

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15
Q

SE of pramipexole (mirapex) when used alone

A
  • nausea, constipation
  • dizziness
  • sleep disturbances and hallucinations
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16
Q

SE of pramipexole (mirapex) when combined with Ldopa/Cdopa

A
  • orthostatic hypotension
  • dyskinesias
  • hallucinations
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17
Q

alzheimer’s disease is a depletion of

A

acetylcholine

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18
Q

to treat alzheimer’s disease, drugs must

A

increase acetylcholine

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19
Q

inhibiting acetylcholinesterase stops

A

the break down of acetylcholine

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20
Q

donepexil (aricept) class

A

acetylcholinesterase inhibitor

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21
Q

donepexil (aricept) action

A

inhibits metabolism of acetylcholine in brain making it more available

22
Q

donepexil (aricept) does what with alzheimers

A

doesnt cure but delays progression by a little more than a year

23
Q

donepexil (aricept) use

A

used for alzheimers

24
Q

donepexil (aricept) SE

A
  • n/d
  • bradycardia
  • fainting
  • falls
  • fall related fractures
25
Q

when to take donepexil (aricept)

A

at bedtime due to SE thus reducing risk of falls

26
Q

contraindications for donepexil (aricept)

A

do not combine with anticholinergic drugs including first gen antihistamines (benadryl)

27
Q

what is MS

A

neurological autoimmune disorder where the immune system eats away the myelin sheaths

28
Q

what can we do with drugs to MS

A

slowed with treatment

early treatment increases the chances of significantly improving the prognosis

29
Q

Interferon Beta (Refib) class

A

immunomodulator

disease modifying drug: naturally occurring cytokine

30
Q

Interferon Beta (Refib) action

A

reduces the frequency/severity of MS attacks, number and size of lesions

delays progression f disability

31
Q

Interferon Beta (Refib) is given

A

injection

32
Q

Interferon Beta (Refib) SE

A
  • flu like symptoms
  • depression and suicidal thoughts
  • extensive liver involvement
33
Q

Interferon Beta (Refib) nursing implications

A

obtain baseline CBC and LFT’s

34
Q

what to check with Interferon Beta (Refib)

A

check liver function

35
Q

Interferon Beta (Refib) interactions

A

dont give with other drugs that affect the liver

do not take with booze

36
Q

Interferon Beta (Refib) use

A

MS

37
Q

what is spasticity

A

movement disorder of CNS

38
Q

what is the most common cause of spasticity

A

MS and cerebral palsy

39
Q

characteristics of spasticity

A
  • heightened muscle tone
  • spasm
  • loss of dexterity
40
Q

drugs for spasticity and what they have in common

A
  • baclofen (CNS)
  • dantrolene (directly on muscle)
  • Diazepam (CNS)

all have CNS depressing qualities

41
Q

Baclofen (Lioresal) MOA

A
  • works in CNS

- mimics GABA in spinal (back) neurons to suppress hyper reflexes

42
Q

Baclofen (Lioresal) use

A

relief of spasticity related to cerebral palsy, spinal cord injury, and MS

43
Q

Baclofen (Lioresal) admin

A

intrathecally (in the back)

44
Q

Baclofen (Lioresal) SE

A
  • nausea,
  • urinary retention
  • constipation
  • orthostatic hypotension
45
Q

caution with Baclofen (Lioresal)

A

dont operate machinery until you know your response to drug

46
Q

how to stop Baclofen (Lioresal)

A

gradual taper

abrupt withdrawal= rhabdomyolysis

47
Q

Dantrolene (Dantrium) MOA

A
  • peripherally acting muscle relaxant

- inhibits muscle contraction by preventing release of calcium in skeletal muscles

48
Q

Dantrolene (Dantrium) uses

A
  • relief of spasticity due to cerebral palsy or MS

- treatment of malignant hyperthermia

49
Q

Dantrolene (Dantrium) SE

A
  • CNS depression

- Hepatic tox

50
Q

Dantrolene (Dantrium) contraindications

A
  • caution with impaired liver function

- CNS depressants additive effects