GGT -Gamma Glutamyl Transpeptidase Liver Enzyme

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ggt
$25.84

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The GGT bood test looks for an enzyme, or protein, called gamma-glutamyl transpeptidase (GGT) in your blood. GGT is found in liver cells. This test helps your doctor look for possible damage to your liver or its ducts. It can also help tell the difference between liver and bone disease if your results from a different blood test called alkaline phosphatase are abnormal. Higher than normal test results could be a sign of liver damage from diseases such as hepatitis, cirrhosis, tumors, or pancreatic cancer. But a higher than normal GGT level does not tell you the specific cause of liver disease or damage.

What is the GTT Blood Test?

The GGT test or Gamma Glutamyl Transpeptidase Liver Enzyme blood test looks for an enzyme, or protein, called gamma-glutamyl transpeptidase (GGT) in your blood.

GGT is found in liver cells. This test helps your doctor look for possible damage to your liver or its ducts. It can also help tell the difference between liver and bone disease if your results from a different blood test called alkaline phosphatase are abnormal.

What Causes High GTT Blood Test Results?

Higher than normal test results could be a sign of liver damage from diseases such as hepatitis, cirrhosis, tumors, or pancreatic cancer. But a higher than normal GGT blood test level does not tell you the specific cause of liver disease or damage.

GGT blood test level is often higher a week or two after you've had a heart attack, but it's unclear why this happens.

High GGT blood levels also may mean liver damage from heavy, chronic alcohol abuse. GGT levels that are higher than normal may also signal a viral infection, such as Epstein-Barr. 

GGT levels are elevated by consumption of large quantities of alcohol. However, determination of high levels of GGT blood level is not specific to alcohol intoxication, and the measurement of selected serum forms of the enzyme offer more specific information. Isolated elevation or disproportionate elevation compared to other liver enzymes (such as two other liver enzymes like ALT or alanine transaminase) can indicate alcohol abuse or alcoholic liver disease, and can indicate excess alcohol consumption up to 3 or 4 weeks prior to the test.

 Some drugs can raise GGT levels, including barbiturates and phenytoin. GGT elevation has also been occasionally reported following taking over-the-counter non-steroidal anti-inflammatory drugs (including aspirin), St. John's Wort and Kava. Elevated levels of GGT can also be due to congestive heart failure. 

 GGT test results should always be interpreted using the reference range from the laboratory that performed the test, though example reference ranges are 15-85 IU/L for men, and 5-55 IU/L for women 

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