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.
Common causes of pleurisy include trauma, postcardiac injury, infection (i.e., viral, bacterial, or parasitic), respiratory illness, caustic exposure (i.e., drug-induced), autoimmune disease, and malignancy (TABLE 1).
Viral infection is probably the most common cause of pleurisy. Other causes include the following: Lung infections, such as pneumonia and tuberculosis. Diseases such as systemic lupus erythematosus (lupus), rheumatoid arthritis, cancer, liver diseases and pulmonary embolism. Chest injuries. Drug reactions.