What are Liver Function Tests?
LFTs (liver function tests) are a group of blood tests that can help to show how well a person's liver is working. LFTs include measurements of albumin, various liver enzymes (ALT, AST, GGT and ALP), bilirubin, prothrombin time, cholesterol and total protein. All of these tests can be performed at the same time.
Measuring Liver Proteins:
Total protein testing (also called TP or serum total protein) measures the amount of proteins in the bloodstream. Many different things can cause abnormally high or low protein levels. A doctor may order total protein testing to help diagnose kidney or liver disease, blood cancer, malnutrition or abnormal body swelling. Normal protein levels in the bloodstream range from 6.5 to 8.2 grams per deciliter Two of the main proteins found in the bloodstream are albumin and globulin.
Globulins are made by various liver cells and the immune system. They help to fight off infections. Low globulin levels can have many causes other than liver damage.
Albumin is a protein made in the liver. If the liver is badly damaged, it can no longer produce albumin. Albumin maintains the amount of blood in the veins and arteries. When albumin levels become very low, fluid can leak out from the blood vessels into nearby tissues, causing swelling in the feet and ankles. Very low levels of albumin may be a sign of liver damage. The normal albumin range is from 3.9 grams/ deciliter to 5.0 grams/deciliter
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LFTs (liver function tests) are a group of blood tests that can help to show how well a person's liver is working. LFTs include measurements of albumin, various liver enzymes (ALT, AST, GGT and ALP), bilirubin, prothrombin time, cholesterol and total protein. All of these tests can be performed at the same time.
Measuring Liver Proteins:
Total protein testing (also called TP or serum total protein) measures the amount of proteins in the bloodstream. Many different things can cause abnormally high or low protein levels. A doctor may order total protein testing to help diagnose kidney or liver disease, blood cancer, malnutrition or abnormal body swelling. Normal protein levels in the bloodstream range from 6.5 to 8.2 grams per deciliter Two of the main proteins found in the bloodstream are albumin and globulin.
Globulins are made by various liver cells and the immune system. They help to fight off infections. Low globulin levels can have many causes other than liver damage.
Albumin is a protein made in the liver. If the liver is badly damaged, it can no longer produce albumin. Albumin maintains the amount of blood in the veins and arteries. When albumin levels become very low, fluid can leak out from the blood vessels into nearby tissues, causing swelling in the feet and ankles. Very low levels of albumin may be a sign of liver damage. The normal albumin range is from 3.9 grams/ deciliter to 5.0 grams/deciliter
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