Pharmacology - Polypharmacy (Exam 6) Flashcards

1
Q

many drugs used appropriately + too many drugs used inappropriately

A

Polypharmacy

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2
Q

The most common oral implication of poly pharmacy is anticholinergic effects. Name some examples

A

Salivary hypofunction
Difficulty in speech and swallowing
Impaired taste

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3
Q

Overall drug burden is an important consideration due to _______________ effects

A

hidden

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4
Q

Explain the impact of non-optimized medication therapy on morbidity and mortality

A

Non-optimized medication therapy is estimate to result in 275,869 deaths per year in the United States.

The annual cost of drug related morbidity and mortality resulting from nonoptimized medication therapy is estimated to be $526.4 billion.

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5
Q

Which population is most sensitive to the harmful effects of poly pharmacy?

A

Older adults

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6
Q

Identify patient factors contributing to the syndrome of polypharmacy.

A

-absorption
-distribution
-metabolism
-excretion
(not sure if this is what she’s looking for)

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7
Q

Name some strategies to fight poly pharmacy risk

A

1) individualize care
2) avoid common errors
3) systematic approach

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8
Q

Pharmacokinetic food-drug interactions are linked to __________ therapeutic index are notable

A

narrow

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9
Q

T/F: Gastric motility can be increased by polypharmacy.

A

False! it’s slowed

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10
Q

Describe the ionization of Warfarin

A

Low pH = neutral species
High pH = ionized species

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11
Q

Two drugs that interact w/ food

A

-uroxatrol
-flomax

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12
Q

As we age, the distribution of drugs is affected. How?

A

Decreased serum albumin
Increased alpha-1-acid glycoprotein
Blood brain barrier

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13
Q

Which Phase of hepatic metabolism is likely to be prolonged in adults?

A

phase I

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14
Q

T/F: Cyp enzymes can be inducted or inhibited by polypharmacy

A

True

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15
Q

Fluoxetine is a strong inhibitor of which CYP?

A

2D6

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16
Q

What is the most significant pathway of elimination impacted by aging?

A

Renal

17
Q

Why don’t transdermal dosage formulations absorb in older people the same as young?

A

Decreased dermal blood flow

18
Q

What % of people over 85 have moderate to severe renal impairment?

A

100%

19
Q

What creatinine clearance estimate do you need to use as a starting place for dose adjustments?

A

Cockroft and Gault

20
Q

What kind of drugs can cross the BBB in older frail adults?

A

-antibiotics
-fat soluble drugs
-quaternary amines
-water soluble drugs

21
Q

What is the minimum that we need to do when we doubt poly pharmacy?

A

1) perform interaction checker
2) ensure renal dose adjustments

22
Q

How can we engage the patient about deprescribing?

A

-Burdensome medication use
-Risks (e.g., anticholinergic effects)
-Time to benefit
-Reduced certainty about benefit + Goals of care (e.g., preserve cognition and function )
-Review options for deprescribing
-Offer alternatives
-Taper