How are pleural effusions (fluid on the lungs) classified?

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Kamran Boka, MD, MS Assistant Professor of Medicine, Attending Physician in Pulmonary and Critical Care Medicine, Divisions of Pulmonary and Critical Care, Department of Internal Medicine, McGovern Medical School at UTHealth at The University of Texas Health Science Center at Houston

Kamran Boka, MD, MS is a member of the following medical societies: American College of Critical Care Medicine, American College of Physicians, American Medical Association, American Thoracic Society

Disclosure: Nothing to disclose.

Guy W Soo Hoo, MD, MPH Clinical Professor of Medicine, University of California, Los Angeles, David Geffen School of Medicine; Director, Medical Intensive Care Unit, Pulmonary and Critical Care Section, West Los Angeles Healthcare Center, Veteran Affairs Greater Los Angeles Healthcare System

Guy W Soo Hoo, MD, MPH is a member of the following medical societies: American College of Chest Physicians, American College of Physicians, American Thoracic Society, Society of Critical Care Medicine, California Thoracic Society, American Association for Respiratory Care

Disclosure: Nothing to disclose.

Jeffrey Rubins, MD Professor of Medicine, University of Minnesota Medical School; Director, Palliative Medicine, Hennepin County Medical Center

Jeffrey Rubins, MD is a member of the following medical societies: American Academy of Hospice and Palliative Medicine, American College of Chest Physicians

Disclosure: Nothing to disclose.

Harold L Manning, MD Professor, Departments of Medicine, Anesthesiology and Physiology, Section of Pulmonary and Critical Care Medicine, Dartmouth Medical School

Harold L Manning, MD is a member of the following medical societies: American College of Chest Physicians, American College of Physicians, and American Thoracic Society

Disclosure: Nothing to disclose.

Stephen P Peters, MD, PhD, FACP, FAAAAI, FCCP, FCPP Professor of Genomics and Personalized Medicine Research, Internal Medicine, and Pediatrics, Associate Director, Center for Genomics and Personalized Medicine Research, Director of Research, Section on Pulmonary, Critical Care, Allergy and Immunologic Diseases, Wake Forest University School of Medicine

Stephen P Peters, MD, PhD, FACP, FAAAAI, FCCP, FCPP is a member of the following medical societies: American Academy of Allergy Asthma and Immunology, American Association of Immunologists, American College of Chest Physicians, American College of Physicians, American Federation for Medical Research, American Thoracic Society, and Sigma Xi

Disclosure: See below for list of all activities None None

Francisco Talavera, PharmD, PhD Adjunct Assistant Professor, University of Nebraska Medical Center College of Pharmacy; Editor-in-Chief, Medscape Drug Reference

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