extrinsic allergic alveolitis Flashcards Preview

RB Y1 Respiratory > extrinsic allergic alveolitis > Flashcards

Flashcards in extrinsic allergic alveolitis Deck (18)
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1

farmers lung cause

aspergillus fumigatas

2

farmers lung from

mouldy hay, straw

3

malt workers lung

aspergillus clavatus

4

malt workers lung from

germinating barley

5

cheese washers lung

aspergillus clavatus and pénicillum casei

6

cheese washers lung from

mouldy cheese

7

maple bark strippers lung

Crytostroma corticaele

8

pathology

infiltration of small airways with neutrophils followed by T lymphocytes and macrophages
leads to non-necrotising granuloma inflammation lungs

9

what type of granuloma

non necrotising

10

what do the non necrotising granulomas comprise

giant cells

11

what are giant cells

multinucleated
formed by the union of several distinct cells - usually macrophages

12

what type of hypersensitivity reaction

III
there is the deposition of immune complexes

13

what can chronic exposure to antigen cause

fibrosis and emphysema

14

when do the CF arise

4-6 hours post exposure

15

CF

fever
rigors
myalgia
dry cough
SOB
dyspnoea
crackles

16

describe the crackles

coarse end inspiratory
upper zones

17

chronic CF

weight loss
exertional dyspnoea
type 1 resp failure
cor pulmonale

18

treatment

steroid and antigen avoidance