Farmer's lung laboratory findings

Farmer’s lung disease is diagnosed by history of exposure to offending agent and appropriate lab investigations like serum precipitins to offending agent, leukocytosis.

Laboratory findings consistent with the diagnosis of Farmer’s lung disease include:

• Serum precipitins to offending agent (non specific)^[1]
• Neutrophilia, lymphopenia
• Raised CRP
• Rheumatoid factor
• Serum immunoglobulins^[2]