What is Pathology - Are there any significant clinical cell injury diagnostic laboratory signs?

What is Pathology - Are there any significant clinical cell injury diagnostic laboratory signs?
​ The release of cytoplasmic enzymes into the blood is usually linked with severe cell damage. Consider the following scenario: Creatine kinase is a marker for cardiac or skeletal muscle cell damage. Damaged liver cells emit aspartate aminotransferase (AST) and alanine aminotransferase (ALT). Lactate dehydrogenase (LDH) is a protein that is released by ruptured red blood cells and a variety of other cells.