Pulmonary- Bronchiectasis and Asthma Flashcards

1
Q

Bronchiectasis

A

Permanent dilation of bronchi and bronchioles caused by destruction of muscle and elastic tissue

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2
Q

Bronchiectasis results from

A

repeated obstruction and infections causing remodeling, dilation, loss of smooth muscle and elastic tissue, fibrosis
- tenancy to collect secretions, become infected (often seen in patients with cystic fibrosis

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3
Q

Bronchiectasis is manifested by

A

cough, fever, expectoration of copious, foul smelling purulent sputum

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4
Q

Asthma

A

Chronic inflammatory airway disorder; symptoms caused by widespread, reversible bronchorestriction, mucus secretion, resulting in obstruction with inadequate ventilation
- atopic and non-atopic causes

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5
Q

Asthma is frequently related to ____ hypersensitivity. Mediated by ____ antigens

A

type 1; IgE

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6
Q

For asthma, antigen exposure results in pulmonary ______; results in increased _____ permeability and _____ production. It stimulated afferent vagus nerve causing ________ constriction

A

mast cell degranulation; vascular; mucus; bronchial smooth muscle constriction

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7
Q

In asthma, hallmark cells include _____ (primary trigger), ____ (elevates in CBC_

A

mast cells, eosinophils

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8
Q

Injury caused by chronic inflammation causes _____ and _____ tissue remodeling

A

fibrosis and bronchial tissue remodeling

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9
Q

Non- atopic causes of Asthma

A

stimuli such as exercise and cold can exacerbate asthma, even without exposure to specific antigens; theorized that airway cooling and drying and increased perfusion of bronchial artery leads to vasoconstriction and bronchial edema , resulting tissue changes cause mast cell degranulation

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10
Q

Asthma is classified in 4 categories:

A

intermittent, mild persistent, moderate persistent, severse persistent

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