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Liver Function Test


Liver Function Test

Liver Function Test 

The liver is the body’s largest internal organ that sits on the right-hand side of belly. The liver is one of the vital organs of the body, that has multiple functions including making proteins and blood clotting factors, manufacturing triglycerides and cholesterol, glycogen synthesis, and bile production. Many diseases may affect the liver directly or as a consequence of any disease that begins in any other organ. Liver function tests are blood tests that help to determine the health of liver by measuring the levels of proteins, liver enzymes, and bilirubin in blood.

Liver function testing is required if body shows following symptoms – 

  1. Jaundice

  2. Nausea and vomiting

  3. Diarrhea

  4. Abdominal pain

  5. Fatigue

  6. Excessive consumption of alcohol

  7. Hepatitis

Some common liver function tests are –

  1. Alanine transaminase (ALT)-ALT is an enzyme found in the liver that helps convert proteins into energy for the liver cells. High level of ALT in bloodstream indicates damage of liver.

  2. Aspartate transaminase (AST)-AST is an enzyme that helps metabolize amino acids. An increase in AST level signify liver damage, disease or muscle damage.

  3. Alkaline phosphatase (ALP)- ALP is an enzyme found in the liver, bile duct and bone and is important for breaking down proteins. Increase levels of ALP signify liver damage or disease, such as a blocked bile duct, or certain bone diseases.

  4. Albumin and total protein-Albumin is one of several proteins made in the liver. Low level of albumin and total protein indicate liver damage.

  5. Bilirubin-Bilirubin is a substance produced during the normal breakdown of red blood cells. It passes through the liver and is excreted in stool. Elevated levels of bilirubin (jaundice) might indicate liver damage or certain types of anemia.

  6. Prothrombin time (PT)-PT is the test that measures time blood takes to clot. If it takes a long time, that could be a signal of liver damage. Medication that thin your blood, such as warfarin, can also lead to a longer PT. Probably this test you will have after you had other liver tests.

Preparation for Liver Function Test –

Doctor will give you complete instructions on how to prepare for the blood sample portion of the test. Certain medications and foods may affect levels of these enzymes and proteins in the blood. It is advisable to avoid some types of medications and avoid eating anything for a period of time before the test. Try drinking water continously prior to the test.

Procedure of Liver Function Test – 

The practitioner will first clean your skin so that there is no likelihood of any infection caused by microorganisms on the skin. They’ll wrap an elastic strap so that veins become visible and sample of blood will be drawn from your arm. However, if you feel lightheaded during the blood draw, it is advisable to rest before you leave the testing facility. 

After the test doctor might prescribe to conduct further test like test for hepatitis, other infections, or other diseases that can affect the liver. They may also recommend ultrasound or CT scan or liver biopsy to evaluate the liver for fibrosis, fatty liver disease, or other liver conditions.

Risks associated with Liver Function Test –

Liver function test are generally safe test. Blood draws are routine procedures and rarely cause any serious side effects. However, some soreness or bruise might occur on the spot from where blood is taken.

We at Dr LalChandani Labs conduct these Tests ranging from Rs 350 – Rs 850 and provide the reports within 5 hours.

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