Liver tests
Liver tests or liver function tests Liver Function Test-LFT Is a set of tests that are conducted to ensure that the liver is healthy and able to perform its functions correctly, where a sample is taken from the blood of the patient and analysis and examination of the components to make sure that the person is not infected with a liver disease such as acute and chronic hepatitis and others.
Liver function tests depend on blood analysis and the presence of certain proteins in it. A number of enzymes are made up of proteins that are responsible for certain functions in the liver. If there is any abnormality in the liver, these proteins are released into the blood. Liver performance and function are evaluated based on 3 major tests: liver capacity testing synthatic function , Examination of liver enzymes liver enzymes , And examination of extractive liver capacity excretory function .
Liver function tests
Examination of the capacity of the liver
Capacity of the liver synthatic function It depends on three things:
- Total protein test Total protein-TP , Which combines albumin protein and globulin protein as well as coagulation factor, a fibrinogen protein, and is estimated based on specific coagulation tests. TP is used to check the metabolic or metabolic capacity of the liver, and its normal range is between 5.5-9 g / dL.
- Examination of albumin protein Albumin-Alb , And its normal range is between 3.5-5.5 g / dL.
- Glopiolin protein test Globulin-Glob , And its normal range is between 2-3.5 g / dl.
Check liver enzymes
Check liver enzymes liver enzymes , And used this examination to determine the health and safety of liver cells, the fact that these enzymes are excreted from liver cells and these enzymes:
- Asperit amino transferase Aspartate Amino Transferase-AST , With a normal rate of between 8 to 35 units / liter.
- ALININ AMEN TRANSFERASE Alanine Amino Transferase-ALT , With a normal rate of between 4 and 36 units / liter.
- Gamma glutamyl transferase Gama Glutamyl Transfrease-GGT , With a normal rate of 0-51 units / liter.
- Lactet dehydrogens Lactate Dehydrogenase-LDH , With a normal rate of 105-333 units / liter.
Examination of liver extraction capacity
Examination of liver extraction capacity excretory function :
- Basal phosphatase enzyme Alkaline phosphatase-ALP , With a normal rate of 41-133 units / liter.
- Bilirubin Bilirubin , And the total normal bilirubin rate is between 0.3-1.9 mg / 100 ml.
- It should be noted that these readings may vary from one medical laboratory to another depending on the units used and the conditions of the test.