RT Book, Section A1 Fitzpatrick, Meghan E. A1 Prendergast, Niall T. A1 Rivera-Lebron, Belinda A2 Papadakis, Maxine A. A2 McPhee, Stephen J. A2 Rabow, Michael W. A2 McQuaid, Kenneth R. SR Print(0) ID 1186013080 T1 Alveolar Hemorrhage Syndromes T2 Current Medical Diagnosis & Treatment 2022 YR 2022 FD 2022 PB McGraw-Hill Education PP New York, NY SN 9781264269389 LK accessmedicine.mhmedical.com/content.aspx?aid=1186013080 RD 2024/04/19 AB Diffuse alveolar hemorrhage may occur in a variety of immune and nonimmune disorders. Alveolar infiltrates on chest radiograph, dyspnea, anemia, hemoptysis and, occasionally, fever are characteristic. Rapid clearing of diffuse lung infiltrates within 2 days is a clue to the diagnosis of diffuse alveolar hemorrhage (eFigure 9–25). Pulmonary hemorrhage can be associated with an increased single-breath diffusing capacity for carbon monoxide (DLCO), although this test is infrequently obtained. Sequential BAL on bronchoscopy is the preferred method for diagnosis. Diffuse alveolar hemorrhage is confirmed when lavage aliquots are progressively more hemorrhagic.