Chapters 73 & 74 Flashcards

1
Q

Perfusion

Ventilation

A

Blood flow through the lungs

Air moving through the lungs

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2
Q

Sympathetic branch of ANS

A

Relaxes smooth muscle of bronchioles
Increases diameter of airway
Bronchodialates, relaxing smooth muscle

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3
Q

Parasympathetic branch of ANS

A

Contracts smooth muscle of bronchioles
Narrows diameter of airway, decrease lumen
Bronchoconstricts

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4
Q

Asthma

A

Bronchospasm

Inflammation

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5
Q

COPD (chronic obstructive pulmonary disease)

A

Emphysema

Chronic Bronchitis

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6
Q

Beta Adrenergics (primary treatment for asthma)

Beta 1

Beta 2

A

Beta 1 receptors found in heart

Beta 2 receptors found in lungs and other organs

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7
Q

Non selective Bronchodialators

Selective agents

A

Non act on both beta 1&2

Selective act on only 1 or 2. (prescribed more often, minimal effect on heart)

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8
Q

Beta 2 Adrenergic agonist (used most)

A

Relaxes bronchial smooth muscle resulting in Bronchodialation
Meds either long or short acting
Short-terminates attack
Long-prevention, used routinely

Used by inhalation of Meds by inhalers or nebulizer

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9
Q

Prototype Beta 2 Adrenergic agonist-

Adverse effects-

A
Albuterol:
Short acting (rescue inhaler)

Adverse effects- tachycardia, headache, throat irritation, nervousness, restless, insomnia

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10
Q

Albuterol contraindications

A

Tachydysrhythmia
Coronary artery disease
HTN

Drug interaction:
Use with beta blockers, MAOI, thyroid replacement therapy

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11
Q

Albuterol nursing interventions

A

Rinse mouth
Asses VS before and after use
Asses lungs
Limit caffeine and nicotine

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12
Q

Anticholinergics

A

Prevention of bronchospasm, not rescue
Atrovent
Blocks parasympathetic nervous system to stimulate sympathetic
Bronchodialates by blocking cholinergic receptors in bronchial smooth muscle.

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13
Q

Prototype Anticholinergic-

Adverse effect-

A

Atrovent

Adverse effects: 
Can worsen glaucoma
Dry mouth, nausea 
Life threatening paradoxical acute bronchospasm 
Bitter taste in mouth (common)

*contraindication: do not use with other Anticholinergics

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14
Q

Nursing interventions when using Atrovent

A

Treat to report lack of improvement or increasing severity of bronchospasm
Asses for history of glaucoma
Use for prevention not attack
Not for children under 12

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15
Q

Inhaled corticosteroid

A

Most effective
Decreases inflammation
Inhibits synthesis and release of inflammatory mediators:
Histamine, leukotrienes, cytokines, prostaglandins (these cause edema & mucus in airway

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16
Q

Prototype Corticosteroid-

Adverse effect-

A

Beconase

Adverse effects (all rare):
Dry mouth, hoarse voice
Cataract development
Growth inhibition in children
Masking infection (no fever, WBC count normal)
Yeast infection in mouth

*no contraindications for corticosteroids

17
Q

Nursing interventions for Beconase

A
Vaccinate children for chicken pox
Monitor diabetes and chronic illnesses
Height of children
Density in older patients
Cataract development 
Teach steroids will not terminate attack
Steroids increase blood glucose
18
Q

Mast cell stabilizers

A

Mast cells- large cells containing inflammatory granules (histamine) which mediates inflammatory and allergic reactions

Prevent degranulation of mast cells

19
Q

Prototype Mast cell stabilizer-

Adverse effects-

Interventions-

A

Intal

Bronchospasm
Cough
Throat irritation

Use Bronchodialator, wait 5 min, then use Intal
Not for attacks
Takes several weeks

20
Q

Leukotriene Modifiers

A

Mediators of immune inflammatory responses
When in airways they promote: edema, inflammation, bronchoconstriction
Reduces spasms by blocking synthesis or receptors
Prevention

21
Q

Leukotriene Modifier Prototype-

Adverse effects-

Contraindications-

Interventions-

A

Accolate

Headache
Rhinitis
NVD(rare)

Contraindications- liver failure. Interactions with aspirin

Take on an empty stomach
No alcohol
Take routinely

22
Q

Methylxanthines

A

Used when other Meds don’t work
Mild bronchodilator effect
Narrow therapeutic index
Stimulants, related to caffeine

23
Q

Methylxanthine Prototype-

Adverse effects-

A

Theolair

Toxicity, NV, headache, insomnia, dysrhytmia, hypotension, seizures

24
Q

Methylxanthine Contraindications-

Interventions-

A

Seizure disorder
Heart failure
Dysrhytmia
Liver disease

Monitor respiratory status
Limit caffeine
No smoking
Report S/S: no appetite, NV, dizziness, insomnia, hypotension, seizures

25
Q

Biologic Therapy Monoclonal Antibodies

Prototype

Adverse effects

A

Xolair

Used when other Meds don’t work
Given SC every 2-4 weeks
Attached to receptor on IgE that reacts to antigen causing release of chemical mediators from mast cells
-ages 12 and up

Anaphylaxis 
Bleeding
Rash 
Headache 
Viral infections
26
Q

Antihistamines (H1 receptor antagonist)

A

First generation- Benadryl

They block histamine from reaching its h1 receptor
Do not prevent release of histamine from mast cells

27
Q

2nd generation Antihistamine Prototype

Adverse effects

A

Allegra
Binds with histamine sites, long half life, made in combination with a decongestant (sudafed)

Headache
Nausea
Viral infections
Dry mouth

*contraindications- renal disease

Aluminum and magnesium decrease absorption
Fruit juice decrease bio availability

28
Q

Allegra interventions

A

Dizziness precautions
Call if symptoms last longer than 3 weeks
Stop 4 days prior to skin allergy tests

29
Q

Intranasal corticosteroid

Adverse effect

A

Flonase- works by vasoconstriction and anti inflammatory actions, stops secretions of mast cells. 1-3 weeks to work

Stinging
Headache
Nose bleeds

*contraindications- not for under age 4

30
Q

Decongestants

A

Sudafed

Used for: allergic rhinitis, congestion, cold, opening eustachian tubes, prevents barotrauma

Activates alpha 1(nose) Adrenergic receptors causing vasodilation
Stimulates beta 2 Adrenergic receptors in respiratory tract for slight Bronchodialation.

31
Q

Adverse effects of Sudafed

Contraindications

A

Insomnia, dizziness, anxiety
Dysrhythmia, HTN, palpations, dry mouth

Contraindicated in:
HTN, CAD, children under 2, caution with all children

32
Q

Drug interactions with Sudafed

Interventions

A
Not with MAOI
CNS and cardiovascular stimulation
Extreme hypertension and bradycardia with beta blockers
Avoid nitrates
With digoxin= cardiac Dysrhythmias 

Monitor VS frequent
Use 3-5 days
Asses for CV disease
Not before bed or higher doses

33
Q

Treatment for common cold

A
Antihistamines
Decongestants
Antitussives 
Expectorants
Analgesics
34
Q

Antitussives

A

Suppress cough- Robitussin, not for pneumonia

Opioids= most effect- codeine and hydocodone

Contraindications- CNS toxic at high doses (grapefruit raises serum), liver damage, 2 and older, caution with COPD

35
Q

Expectorants

A

Mucinex

Increase secretions of mucus
Reduces thickness of secretions

Adverse: NV, ab pain at high doses, toxic for children under 2

36
Q

Mucolytics

A

Mucomyst

Thins and loosens thick secretions

Adverse: bronchospasm, NV, fever