Q: In acute eosinophilic pneumonia (AEP), pleural fluid is  (choose one)?

A) Exudative

or

B) Transudative

Answer:  A

In AEP, the pleural fluid is exudative with an increased percentage of eosinophils.

Reference:

Pope-Harman AL, Davis WB, Allen ED, Christoforidis AJ, Allen JN. Acute eosinophilic pneumonia. A summary of 15 cases and review of the literature. Medicine (Baltimore) 1996; 75 (6) 334–342