A LFT, or Liver Function Test, is a blood test used to evaluate how well your liver is working. The test measures levels of certain enzymes and proteins in your blood, which can indicate liver damage or disease.
- Liver function tests are a crucial tool for diagnosing and monitoring liver health. They are often used to screen for liver disease, assess the severity of liver damage, and monitor the effectiveness of treatment.
- Elevated levels of certain enzymes and proteins in the blood can signal liver injury. These enzymes are usually found within the liver cells. When the liver is damaged, these enzymes are released into the bloodstream, where they can be detected.
- The liver plays an essential role in many bodily functions, including filtering toxins, producing proteins, and storing energy.
Key facts about LFTs:
- Liver function tests are a group of blood tests. They can reveal information about the state of a patient's liver.
- The test is typically ordered by a doctor who is concerned about liver health or a possible liver condition.
- The results of an LFT can be affected by factors such as medication and alcohol consumption. It's important to inform your doctor about any medications or supplements you're taking.
Commonly tested liver enzymes and proteins:
- Alanine transaminase (ALT) and aspartate transaminase (AST): These enzymes are released into the bloodstream when liver cells are damaged.
- Alkaline phosphatase (ALP): This enzyme is found in the liver and other tissues. Elevated levels can indicate liver damage or a blockage in the bile duct.
- Gamma-glutamyl transferase (GGT): This enzyme is also found in the liver and other tissues. Elevated levels can indicate liver damage or alcohol abuse.
- Bilirubin: This pigment is produced when red blood cells are broken down. Elevated levels can indicate problems with the liver's ability to filter bilirubin from the blood.
- Albumin: This protein is produced by the liver. Low levels can indicate liver damage or malnutrition.
Remember, LFTs are just one part of the overall picture when it comes to diagnosing and monitoring liver health. It is essential to discuss the results with your doctor, as they can help interpret the findings in the context of your individual medical history and symptoms.
