Gamma-Glutamyl Transferase (GGT) is an enzyme found in many organs, such as the kidney, liver, spleen and pancreas; however, the main source of GGT in the blood is the liver. Gamma-glutamyl transferase (GGT) levels may be used to determine the cause of an elevated alkaline phosphatase (ALP). Both ALP and GGT are elevated in disease of the bile ducts and in some liver diseases, but only ALP will be elevated in bone disease. If the GGT level is normal in a person with a high ALP, the cause is most likely bone disease.  The GGT test aids in detecting liver and bile duct injury. Some health professionals use it in all people they suspect of having liver disease, while others use it only to help explain the cause of other changes or if they suspect alcohol abuse.

Total Cholesterol: Blood test to measure lipids-fats and fatty substances used as a source of energy by your body.

Lactate dehydrogenase (LDH or LD) is an enzyme that is found in almost all body tissues and helps produce energy, but only a small amount of it is usually detectable in the blood. It is present in almost all of the tissues in the body and becomes elevated in response to cell damage. Contained within the tissues’ cells, LDH is released into the bloodstream when cells are damaged or destroyed. Because of this, the LDH test can be used as a general marker of injury to cells. Elevations of LDH may be measured either as a total LDH or as LDH isoenzymes. A total LDH level is an overall measurement of five different LDH isoenzymes. Isoenzymes are slightly different molecular versions of the LDH enzyme. A total LDH level will reflect the presence of tissue damage, but it is not specific. By itself, it cannot be used to identify the underlying cause or its location. Measurements of the individual LDH isoenzyme levels can be used, along with other tests, to help determine the disease or condition causing cellular damage and to help identify the organs and tissues involved. In general, the isoenzyme locations tend to be LDH-1, heart, red cells, kidney, germ cells, LDH-2, heart, red blood cells, kidney (lesser amounts than LDH-1),LDH-3, lungs and other tissues, LDH-4, white blood cells, lymph nodes; muscle, liver (lesser amounts than LDH-5) , LDH-5, liver, skeletal muscle. While all of the isoenzymes are represented in the total LDH, LDH-2 usually makes up the greatest percentage.