Interstitial Lung Diseases Flashcards
interstitial lung diseases are obstructive/restrictive
restrictive - lung tissue is damaged which reduced ability for gas exchange to occur
sarcoidosis is type ___ hypersensitivity disorder causing ___ granulomatous formation
type IV hypersensitivity multisystem disorder
non-caseating granulomatous formation
unknown aetiology
what are the clinical features of sarcoidosis (7)
bilateral hilar lymphadenopathy erythema nodosum arthritis fever dry cough chest pain uevitis
in sarcoidosis, what two blood tests will be raised
serum ACE levels
Calcium
do you treat sarcoidosis and when?
condition improves on its own
possible ICS for hypercalcaemia
only treat with steroids if organ damage
describe idiopathic pulmonary fibrosis
most common ILD
inflammatory cell infiltrate causing collagen deposition and HONEYCOMBING
late onset with unknown aetiology
what are the symptoms of idiopathic pulmonary fibrosis
dry cough
dyspnoea
weight loss
what are the signs of idiopathic pulmonary fibrosis
finger clubbing
fine bi-lateral crackles
possible cyanosis
what is the treatment for idiopathic pulmonary fibrosis
no curative treatment - median survival time is short
oral prednisolone and oxygen can help improve symptoms
hypersensitivity pnemonitis is also known as
extrinsic allergic alveolitis
EAA is type __ hypersensitivity reaction
III
what causes EAA
inhalation of spores and dust
specifically farmers lung, malt workers, bird fanciers, gold and sugar workers
approximately how long after exposure to the EAA causing antigen do symptoms present
4-6 hours
what are the symptoms of EAA
dry cough
dyspnoea
fever
crackles
improving EAA patients symptoms is done by
antigen avoidance
oral prednisolone
oxygen if required
