Prescribing In The Elderly Flashcards

1
Q

Acidic drugs need what sort of environment?

A

Acidic for absorption

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2
Q

Basic drugs need what sort environment for absorption?

A

Basic

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3
Q

Examples of acid drugs?

A

Phenytoin
Aspirin
Penicillins

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4
Q

Examples of basic drugs?

A

Diazepam
Morphine
Pethidine

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5
Q

Do elderly patients have an increased or decreased gastric pH?

A

Increased - less acidic - means they absorb basic drugs better than acidic

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6
Q

Is albumin acidic or basic and what does it Bind to?

A

Basic

Binds to acidic drugs

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7
Q

Is alpha -1- acid glycoprotein acidic or basic and what does it bind to?

A

Acidic

Binds to basic drugs

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8
Q

In what proportion do elderly patients have albumin and A-1-AG?

A

Low albumin

Higher A-1-AG

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9
Q

Elderly people’s liver function?

A

Reduced due to decreased liver size, blood flow and disease

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10
Q

Do elderly people have increased or decreased GFR ?

A

Decreased

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11
Q

Does narrow therapeutic window become bigger or smaller as person gets older?

A

Smaller

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12
Q

What quantifies narrow therapeutic window?

A

<2

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13
Q

Which drugs have a narrow therapeutic window?

A
Theophylline
Warfarin 
Lithium
Digoxin
Gentamicin
Vancomycin
Phenytoin
Cyclosporin
Carbamazepine
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14
Q

What type of drug interactions exist?

A
Drug drug
Drug food
Drug disease
Drug side effects
Drug toxicity
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15
Q

Clopidogrel and what?

A

PPIs

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16
Q

ACEi increase hypoglycaemic effect of what?

A

Sulfonylureas

17
Q

TCAs and what?

A

Type 1 anti-arrhythmic

18
Q

Theophylline and what?

A

Macrolide antibiotics

19
Q

Statins and what ?

A

Macrolides

Fibrates

20
Q

Dementia and what?

A

Gingho Bilbba

21
Q

OA and what?

A

Glucosamine

22
Q

Depression and what?

A

St. John’s wort

23
Q

Asthma and what?

A

Beta blockers

24
Q

Parkinson’s and what?

A

Drug induced confusion

25
Constipation is worsened by?
Calcium Anticholinergics CCB
26
What drugs lower seizure threshold?
Neuroleptics Tramadol Quinolones
27
What do grade fruit, Apple, orange, cranberry Inge react with and why?
Statins Antihistamines Cytochrome P450
28
What does chicken, turkey, milk, soy, cheese, yoghurt interact with and why?
Antibiotics Thyroid meds Digoxin Diuretics. Alter the pH
29
What do bananas , oranges, green leafy veg interact with and why?
ACEi ARBs K sparing diuretics K+ Rich