ch 28 OPD - book/1 Flashcards

1
Q

CF produces airway obstruction because of changes in

A

exocrine glandular secretions, resulting in increased mucus production

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2
Q

asthma s/s

4

A
  1. wheezing
  2. breathlessness
  3. chest tightness
  4. cough (higher at night and in early morning)
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3
Q

what genetic predisposition is to developing asthma from common allergens

A

atopy

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4
Q

asthma - hygiene hypothesis suggest that

A

a newborn baby’s immune system must be conditioned so that it will function properly during infancy and the rest of life

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5
Q

GERD may worsen asthma symptoms because reflux may do what

A

trigger bronchoconstriction and cause aspiration

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6
Q

asthma meds may worsen GERD s/s how

A

beta2-agonists that treat asthma relax the lower esophageal sphincter, thus allowing stomach contents to reflux into the esophagus

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7
Q

primary patho of asthma

A

persistent but variable inflammation of the airways

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8
Q

asthma - airflow is limited because the inflammation results in
3

A
  1. bronchoconstriction
  2. airway hyperresponsiveness (hyperreactivity)
  3. edema of the airways
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9
Q

remodeling

A

chronic inflammation may result in structural changes in the bronchial wall

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10
Q

PEFR

A

measured by the peak flow meter is an aid to dx and monitor asthma

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11
Q

FEV1 stands for

A

forced expiratory volume in 1 second

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12
Q

when spirometry is schedules, ask the pt to stop what

A

taking any bronchodilator meds for 6-12 hrs before the tests

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13
Q

what serum values are highly suggestive of atopy

A

elevated serum eosinophil count and elevated serum IgE levels

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14
Q

atopy

A

genetic predisposition to develop an allergic response

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15
Q

asthma - the level of control is determined by the patient’s current what

A

peak flow/FEV1

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16
Q

pts in all classifications of asthma require what

A

short term (rescue or reliever) meds

17
Q

most effective class of drugs used as rescue or reliever meds

18
Q

asthma - best drugs to treat inflammation

19
Q

ICS name

A

fluticasone

20
Q

oral steroids

A

prednisone

21
Q

inhaled anticholinergic name

A

ipratropium

22
Q

acute asthma attack clinical manifestations

4

A
  1. sits forward to maximize diaphragmatic movement
  2. wheezing
  3. RR > 30
  4. PR > 120
23
Q

mild asthma PEF

A

> 70% of personal best

24
Q

PEF

A

peak expiratory flow - the amount of air that you expel after taking a full breath

25
FEV1
forced expiratory volume in one sec - the amount of air you expel in one second
26
mod asthma PEF
40-60%
27
severe asthma PEF
<40%
28
life threatening asthma PEF
<25%
29
management of pt with acute exacerbation focuses on | 2
1. correcting hypoxemia | 2. improving ventilation
30
asthma attack - give oxygen by NC to achieve a PaO2 of what
at least 60 mm Hg or oxygen saturation greater than 90%
31
hyperventilation occurs during an asthma attack as lung receptors respond to
increased lung volume from trapped air and airflow limitation
32
severe exacerbations - what is used with SABA
inhaled ipratropium (Atrovent)
33
what levels are increased in the breath of people with asthma associated with eosinophilic-induced airway inflammation
nitric oxide
34
asthma attack - IV mag sulfate may be administered to pts with 2
very low FEV1 or peak flow (<40%) or those who fail to respond to initial treatment
35
IV mag has what type of effect
bronchodilator effect