Asthma COPD Flashcards

1
Q

Two phases of asthmatic response

A

Early phase: acute bronchoconstriction

Late phase: influx of inflammatory cells, second wave of mediator release

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2
Q

Targets of asthma meds:

A

Bronchiolar SMC
Inflammation
Mediators (histamine, leukotrienes, prostaglandins, IgE, cytokines)

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3
Q

Targets of COPD meds:

A

Pulmonary infection prevention
Hypoxemia (O2)
Bronchiolar SM
Inflammation (contradictory)

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4
Q

MDI

A

drug is suspended in compressed gas propellant

must be coordinated

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5
Q

“Spacer”

A

used to allow sequential action and inhalation

Decrease amount of drug that goes in just oropharynx

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6
Q

DPI

A

Dry powder inhaler
Requires proper use of inhalation
Not good for children, elderly, or those in acute attack

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7
Q

Bronchodilators aka

A

B-2 agonists

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8
Q

What are 2 mechanisms of B-2 agonists?

A

(1) Stimulate B-2 receptor on bronchiole SM, elevate cAMP reduce SM tone = dilation
(2) Anti-inflammatory - inhibit release of histamine

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9
Q

What is the first line agent used PRN for acute attacks?

A

Albuterol

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10
Q

What agent is used for prevention of exercise induced asthma?

A

Albuterol

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11
Q

Short acting B-agonist

A

Albuterol

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12
Q

Long-acting B-agonist

A

Salmeterol

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13
Q

Has a long lipophilic tail that anchors to the drug membrane

A

Salmeterol

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14
Q

Which B-2 agent should not be used for acute attacks?

A

Salmeterol

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15
Q

Requires asthma prophylaxis schedule and administration with glucocorticoids?

A

Salmeterol

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16
Q

Long lasting oral B-2 agonist

A

Albuterol oral

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17
Q

Which B-2 agonist can be used in children

A

Oral albuterol

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18
Q

What are adverse effects of B-2 agonists at high doses?

A

Reflex tachycardia

Palpitation tremor

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19
Q

When used alone which B-2 agonists are associated with increase risk of severe asthma attack and asthma related death by exacerbating inflammation?

A

Salmeterol

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20
Q

Which agents must be used in combination and not be used longterm?

A

B-2 agonists

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21
Q

Theophylline mechanism of action

A

Non-specific inhibitor of phosphodiesterases that degrade cAMP (similar to b-agonist)

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22
Q

PDE3 inhibition

A

Bronchodilation

23
Q

PDE4 inhibition

A

anti-inflammatory action

24
Q

Which agent antagonizes adenosine receptors on bronchioles?

A

Theophylline

25
What agent is used if patient is noncompliant or monteleukast is ineffective?
Theophylline
26
Which is an alternative to LABAs?
Theophylline
27
Which agent has large variability in CYP metabolism and can lead to variation in blood levels?
Theophylline
28
Which has high dose effects of nausea, nervousness, anxiety, headache and insomnia?
Theophylline
29
Which at toxic levels creates dysarrthmias?
Theophylline
30
Anticholinergic agent
Ipratropium
31
Which agent is "Atropine like"?
Ipratropium
32
Which agent forms a quaternary amine?
Ipratropium
33
Mechanism of Ipratropium
Blocks muscarinic M3 receptors of bronchoconstriction
34
Which has been approved for symptomatic COPD and better than B-agonists?
Ipratropium
35
Which causes pharyngeal irritation and dry mouth?
Ipratropium
36
Which is often given with B agonists (albuterol)?
Ipratropium
37
Which inhaled corticosteroid is first line for CHRONIC asthma?
Fluticasone
38
Which drug improves lung function and prevents irreversible airway changes?
Fluticasone
39
Which B-agonist and inhaled corticosteroid are combined to treat asthma?
Salmeterol+Fluticasone
40
When is oral/parenteral prednisone used?
During severe asthma attacks and acute exacerbations that are not relieved by B-agonists
41
What is the MOA of Fluticasone
No effect on brochoconstriction Bind to GC receptors and inhibit release and synthesis of inflammatory mediators (anti-inflammatory) decrease airway mucus production increase responsiveness to B-2
42
What is the adverse reaction of inhaled corticosteroids?
Oral thrush | Dysphonia
43
Mechanism of action of Cromolyn
Mast cell stabilizer, preventing the release of histamine (anti-inflammatory) Decreases bronchial hyper-reactivity
44
Use of cromolyn
asthma prophylaxis allergic asthma exercise induced asthma reduce frequency and intensity of attacks
45
Leukotriene modifiers
Monteleukast | Zileuton
46
Monteleukast MOA
Act on leukotriene receptor | Antagonist
47
Which leukotriene acts on leukotriene synthesis (5-lipoxygenase) as an inhibitor?
Zileuton
48
Which asthma agents are used for aspirin sensitive asthma?
Leukotriene modulators (monteleukast and zileuton)
49
Which leukotriene modifier is associated with hepatotoxicity and dyspepsia?
Zileuton (enzyme)
50
Which leukotriene should not be combined with theophylline and warfarin?
Zileuton (enzyme)
51
Which asthma anti-inflammatory acts on IgE?
Omalizumab
52
Omalizumab MOA
Decrease amount of IgE that can bind to mast cells, allergens unable to trigger histamine release from mast cells
53
Use of Omalizumab
Allergy related asthma
54
Which anti-inflammatory is administered subcutaneously?
Omalizumab