Dilutional acidosis during whole lung lavage under general anesthesia due to excessive absorption of normal saline.

Background: Whole lung lavage (WLL) is an effective therapy for pulmonary alveolar proteinosis. We report a rare dilutional acidosis following WLL in a female patient.

Case Presentation: Under general anesthesia, a left-sided double-lumen tube was inserted with its bronchial lumen connected to the saline delivery system.