Path x2 Flashcards
What is bronchiectasis?
Permanent dilation of the bronchi and bronchioles, caused by destruction of muscle and elastin tissue
Is bronchiectasis reversible?
no
What are the two requisite conditions for bronchiectasis?
Obstruction and chronic, persistent infections
What is the histological change with bronchiectasis?
FIbrosis of the bronchioles, holding them open
What are the three common obstructive causes of bronchiectasis?
Tumor
FB
Concretions/secretions
What are the two congenital conditions that cause bronchiectasis?
CF
Kartagener’s syndrome
Immunodeficiency
What type of pneumonia causes bronchiectasis? What organism?
Necrotizing
Staph Aureus, klebsiella, or TB
What chromosome is responsible in CF?
7
Why is there thick mucus with CF?
NaCl is pulled inward, opposite of sweat glands
What is the defect with Kartagener syndrome?
Structural defect in dynein of cilia
Is Kartagener syndrome AR or AD?
AR
What are the histological findings of the cilia with Kartagener syndrome?
Loss of the radial spokes
What are the ssx of bronchiectasis? (4)
Chronic cough
Foul smelling sputum
Hemoptysis
Dypsnea
What are the complications that can arise from bronchiectasis? (4)
Pulmonary HTN
Brain abscesses
Cor pulmonale
Amyloidosis
What is the major, basic issue with restrictive diseases?
Fibrosis of the lungs causes problems getting air in
What type of lung disease is kyphoscoliosis?
Restrictive
What are the two external causes of restrictive lung diseases?
Deformed chest wall
Pleural space filled with stuff
What are the hallmarks of chronic, diffuse interstitial diseases? What is the consequence of this?
Reduced compliance d/t inflammation and fibrosis.
Dyspnea results
What happens to TLC with restrictive lung diseases? FEV1? FEV1/FVC?
TLC reduced
FEV1 normal-ish
FEV1/FVC normal
What is the typical presentation of interstitial lung diseases? Lung sounds?
SOB/hypoxia
Inspiratory crackles
What are the x-ray findings of interstitial lung disease?
Diffuse, bilateral infiltrative lesions, or ground glass shadows
What are the complications of interstitial lung diseases?
pHTN
What is the end stage result of ILDs?
honeycomb lung
What is acute lung injury?
Capillary damage causing non-cardiogenic pulmonary edema