The presence of excess fluid in the lungs, often leading to difficulty breathing.

A medical condition characterized by the collapse of a lung, resulting in difficulty breathing and decreased oxygen levels.

A condition characterized by low levels of oxygen in the blood, often tested through blood gas analysis.

The volume of air that can be inhaled after a normal tidal breath, which is important for assessing lung capacity.

A condition where a person experiences difficulty breathing while lying flat, often relieved by sitting up.

A sudden blockage in a pulmonary artery, usually caused by a blood clot that travels from the legs or other parts of the body.

A condition characterized by episodes of severe breathlessness during sleep, often waking the person up.

A lung disease characterized by progressive scarring of lung tissue, leading to reduced lung capacity and function.

The space within the lungs that does not participate in gas exchange, often measured to assess lung function.

A condition where fluid accumulates in the pleural cavity, leading to difficulty breathing and decreased lung expansion.