Gamma-glutamyl transferase (GGT) is a liver enzyme that plays a role in breaking down certain chemicals in the body. When there is an increase in GGT levels in the blood, it can indicate damage to the liver or other organs. This is why the GGT test is commonly used as part of a liver function panel.
The GGT test is a simple blood test that measures the amount of GGT in the blood. It is often ordered alongside other liver function tests such as alanine aminotransferase (ALT) and aspartate aminotransferase (AST). The GGT test can also be used to monitor patients with known liver disease or to screen for alcohol abuse.
The GGT test is typically done as part of a routine blood test. The patient will be asked to fast for at least 8 hours prior to the test. During the test, a healthcare provider will take a blood sample from a vein in the arm using a needle. The blood sample is then sent to a laboratory for analysis.
Normal GGT levels vary depending on age, gender, and other factors. In general, GGT levels are higher in men than in women, and they tend to increase with age. Normal GGT levels for men range from 10 to 71 units per liter (U/L), while normal levels for women range from 6 to 42 U/L.
High GGT levels can be a sign of liver damage or disease, including hepatitis, cirrhosis, and liver cancer. GGT levels can also be elevated due to heavy alcohol use, certain medications, or other medical conditions. It is important to note that a high GGT level alone is not enough to diagnose a specific condition. Additional tests, such as imaging studies or liver biopsy, may be needed to make a definitive diagnosis.
In conclusion, the GGT test is a simple blood test that is used to assess liver function and screen for liver disease or damage. It is often done as part of a routine blood test or as part of a liver function panel. High GGT levels may indicate liver damage or disease, but further testing is necessary to make a definitive diagnosis. If you have concerns about your liver function or any other medical condition, it is important to talk to your healthcare provider.
