1.4 Chemical Determination. Proteins are complex, organic compounds composed of many amino acids linked together through peptide bonds and cross-linked between chains by sulfhydryl bonds, hydrogen bonds and van der Waals forces.
Treatment of the underlying disease, of course, ultimately relieves the pleurisy. For example, if a heart, lung, or kidney condition is present, it is treated. Removal of fluid from the chest cavity (thoracentesis) can relieve the pain and shortness of breath.
Pleurisy is due to inflammation of the pleura next to the lung. It is most often caused by infection with a germ (a viral infection). In these cases the pain can be severe but soon goes. Various other lung disorders can also cause a 'pleuritic pain' similar to pleurisy.