Hypersensitivity pneumonitis physical examination

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

In general, the signs of acute, subacute and chronic forms of the disease are similar except patients with the chronic form may have clubbing, weight loss and muscle wasting.

• Weight loss is present in the chronic form of the syndrome.

• Fever and tachypnea are often present.

• Diffuse fine bibasilar crackles over lower lung fields often are present.

• Clubbing is observed in 50% of patients with the chronic form of the syndrome. Muscle wasting is also observed in the chronic form of the syndrome.

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