Farmer's lung other diagnostic studies: Difference between revisions
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==References== | == Overview == | ||
{{Reflist|2}} | Other diagnostic studies helpful in diagnosing Farmer's lung disease include [[Pulmonary function test|Pulmonary function tests,]] [[Bronchoalveolar lavage]][[-microscopy]], and rarely [[lung]] [[biopsy]] | ||
== Other Diagnostic Studies == | |||
Other diagnostic studies useful in diagnosing Farmer's lung disease include [[Pulmonary function tests]], [[Microscopy]] of [[bronchoalveolar lavage]] and rarely [[lung]] [[Biopsy|biopsy.]] | |||
[[Pulmonary function tests]] show- | |||
*[[Restrictive lung disease|Restrictive pattern]] | |||
* Decreased [[DLCO|diffusion capacity of lung]] | |||
*[[Hypoxemia]] at rest or with exertion<ref name="SoumagneChardon2016">{{cite journal|last1=Soumagne|first1=Thibaud|last2=Chardon|first2=Marie Laure|last3=Dournes|first3=Gael|last4=Laurent|first4=Lucie|last5=Degano|first5=Bruno|last6=Laurent|first6=François|last7=Dalphin|first7=Jean Charles|title=Characterization of emphysema in active farmer's lung disease|year=2016|pages=PA1163|doi=10.1183/13993003.congress-2016.PA1163}}</ref> | |||
In acute cases- | |||
* little or no impairment of gas flow | |||
* decreased [[compliance]] and [[Ventilation-perfusion mismatch|V/Q imbalance]] leading to [[hypoxemia]] and impaired [[gas exchange]]. | |||
In chronic cases- | |||
* Increased [[compliance]] | |||
* stiff lungs- [[Restrictive Lung Disease|restricted volume]] | |||
Microscopy of [[Bronchoalveolar lavage|broncho alveolar lavage]] shows- [[leukocytosis]] | |||
Rarely, [[lung]] [[biopsy]] is done if [[diagnosis]] could not be made with other investigations and no other criteria is met. [[Bronchial|Trans bronchial]] [[biopsy]] is sufficient for the [[diagnosis]]. | |||
== References == | |||
{{Reflist|2}} | |||
[[Category:Needs content]] | [[Category:Needs content]] | ||
[[Category:Pulmonology]] | [[Category:Pulmonology]] | ||
[[Category:Immunology]] | [[Category:Immunology]] | ||
Latest revision as of 16:02, 7 August 2020
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Overview
Other diagnostic studies helpful in diagnosing Farmer's lung disease include Pulmonary function tests, Bronchoalveolar lavage-microscopy, and rarely lung biopsy
Other Diagnostic Studies
Other diagnostic studies useful in diagnosing Farmer's lung disease include Pulmonary function tests, Microscopy of bronchoalveolar lavage and rarely lung biopsy.
Pulmonary function tests show-
- Restrictive pattern
- Decreased diffusion capacity of lung
- Hypoxemia at rest or with exertion[1]
In acute cases-
- little or no impairment of gas flow
- decreased compliance and V/Q imbalance leading to hypoxemia and impaired gas exchange.
In chronic cases-
- Increased compliance
- stiff lungs- restricted volume
Microscopy of broncho alveolar lavage shows- leukocytosis
Rarely, lung biopsy is done if diagnosis could not be made with other investigations and no other criteria is met. Trans bronchial biopsy is sufficient for the diagnosis.
References
- ↑ Soumagne, Thibaud; Chardon, Marie Laure; Dournes, Gael; Laurent, Lucie; Degano, Bruno; Laurent, François; Dalphin, Jean Charles (2016). "Characterization of emphysema in active farmer's lung disease": PA1163. doi:10.1183/13993003.congress-2016.PA1163.