Obstructive Lung Diseases Flashcards

(49 cards)

1
Q

4 groups fo Obstructive diseases

A

Acute upper resp infection
Asthma
COPD
Miscellaneous resp disorders

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2
Q

What accounts for 95% of URIs

A

Infections Nasopharyngitis

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3
Q

Most URI’s involve what type of pt

A

pedatric pt

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4
Q

Children with URI are at higher risk for what

A

hypoxemia, laryngospasmn, breath holding, coughing

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5
Q

A stable URI in someone is ok for what

A

surgery

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6
Q

If surgery is cancelled due to URI it should not be rescheduled for how long

A

6 weeks

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7
Q

Use of what in someone with an acute URI may reduce risk of laryngospasam

A

LMA

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8
Q

What may allow for a smoother emergence

A

deep extubation

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9
Q

What resp events in pts with acute URI can occur

A

laryngospasam, airway obstruction, post intubation croup, desaturation, atelectasis

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10
Q

Asthma

A

Chronic inflmmation of mucosa of lower airways

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11
Q

Astha results in edema in what part of the airway

A

bronchi

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12
Q

Main inflammatory mediators in asthma

A

histamine, prostglandin d2, leukotrienes

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13
Q

Asthma is episodic dz with _____ exacerbations and _____ periods

A

acute
asymptomatic

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14
Q

Diagnosis of asthma is based on PFTs that show

A

airway obstruction that responds to treatment with bronchodilators

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15
Q

What is the typical FEV1 in a symptomatic asthmatic

A

< 35%

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16
Q

During a severe asthmatic attack what may increase

A

FRC

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17
Q

Would TLC increase or change in a severe asmatic attack

A

NO

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18
Q

Can a pt have asthma with a normal PFT test?

A

Yes: asmatha is an episodic illness

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19
Q

Durin and asthma attack tachynea and hyperventilation is c/b _________ reflexes of the lungs

A

Neural

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20
Q

Two most common findings on ABG in someone with symptomatic asthma

A

Hyocarbia, respiratory alkolosis

21
Q

When does PCO2 increase based of the FEV1

22
Q

First line treatment for mild asthma

A

Short acting inhaled B2 agonist

23
Q

Following a short acting b2 agonist, what medication would be given next that reduce exacerbations and decrease hospitlization

A

Inhaled corticosteroids

24
Q

Systemic coricosteroids are reserved for _______ asthma

25
what can be given SQ to decrease use of long term medications
Immunotherapy
26
Nonpharmalogic asthma treatment done by a pulmonologist
Bronchial Thermoplasty: performed over 3 sessions which inovolves ablation of smooth airway muscle
27
Following bronchial thermoplasty when the FEV1 improves to ____ pts usually have no symptoms
50% of normal
28
Bronchospasam doesnt resovle in acute severe asthma despite____
noraml treatment
29
Emergency treatment for severe acute asthma
high dose, short acting b2 agonist, systemic corticosteroids
30
How often can inhaled b2 agoinst can be given in severe acute asthma
Every 15-20 minutes for several doses
31
Most common IV corticosteroids used for acute asthma
Hydrocortisone, methylprednisone
32
What other two drugs can be given in addition to steroids in acute severe asthma
magnesium, leukotriene inhibitors
33
Bronchospasam has been reported in ______ of asthmatics undergoing GA
0.2%-4.2%
34
Risk of bronchospasam is correlated more with specific types of surgery
upper abdominal and oncologic surgery
35
What blood cell count often mirrors the degree of airway inflammation
Eosinophil
36
During astha pre op assement, a reduction in FEV1or FVC less than ____ of predicited and or FEV1 ratio less than ___ of predicited is a risk of periop resp complications
<70%, <65%
37
If asthma pt has been on systemic corticosteroids within the past 6 months a ______ dose of ______ or ______ is indicated
stress: hydrocortisone: methylprednisone
38
Pts should have a PEFR of _______ their predicted or their personal best value before surgery
>80%
39
What is emphysema characterized by
Lung parenchymal destruction
40
What is lost in COPD
Elastic recoil
41
COPD diagnosis PFT shows a decrease in the FEF between
25-75% of vital capacity
42
Will a COPD pt have an increased FRC and TLC
yes
43
How will the diffusing lung capacity be affected by COPD
Reduced
44
An increase in RV in COPD is caused by what
slow expiratory flow and gas trapping due to airway closure
45
What on an xray represents COPD
Hyperlucency
46
Most sensitve test at diagnosing COPD
CT
47
What phenotype of COPD causes alveolar destruction, loss of bone, muscle, fat, and carries a higher rate of lung cancer
Multiorgan loss of tissue (MLOT)
48
What phenotype of COPD is associated with bronchiolar narrowing and wall thickening and accompanied by metablolic syndrome and cardiac disease
Bronchitic
49
What dificiency is inherited and associated with COPD
low a1-antitrypsin ssss