What are Liver Function Tests (LFT)?
Liver function tests, or LFTs, are simple blood tests. They check how well your liver is working. These tests measure different proteins and enzymes in your blood. For example, they look at ALT, AST, ALP, and bilirubin. Each of these tells doctors something about your liver’s health. Because the liver is important for many body functions, LFTs help spot problems early. According to the CDC, these tests are safe and quick.
Why are LFTs Important?
LFTs are important because your liver does many jobs. It helps digest food, stores energy, and removes toxins. If your liver is not working well, your whole body can be affected. Therefore, doctors use liver function tests to find liver diseases early. Early detection can help prevent serious problems. In addition, LFTs can help track how well treatments are working.
Common Symptoms Indicating the Need for LFT
Sometimes, your doctor may suggest an LFT if you have certain symptoms. These signs can mean your liver needs checking. For example, you might need a liver function test if you have:
- Yellow skin or eyes (jaundice)
- Dark urine or pale stools
- Swelling in your belly or legs
- Unusual tiredness
- Nausea or vomiting
- Loss of appetite
- Itchy skin
Also, people with a history of liver disease or heavy alcohol use may need regular LFTs.
Causes for Abnormal LFT Results
Abnormal LFT results can happen for many reasons. Sometimes, the cause is simple, like a recent infection. Other times, it may be more serious. Common causes of abnormal LFTs include:
- Viral hepatitis (like hepatitis B or C)
- Alcohol use or abuse
- Fatty liver disease
- Certain medicines
- Autoimmune liver diseases
- Liver tumors or cancer
- Blocked bile ducts
However, not all abnormal results mean you have liver disease. Your doctor will look at your full health picture.
How LFTs are Performed: Procedure and Preparation
Getting a liver function test is simple. First, a healthcare worker will take a small blood sample from your arm. The process usually takes just a few minutes. You may feel a quick pinch, but it is not very painful. In most cases, you do not need to fast before the test. However, your doctor may ask you to avoid certain foods or medicines. Always follow your doctor’s instructions before the test. Afterward, you can return to your normal activities right away.
Understanding LFT Results: What Do They Mean?
LFT results show levels of different liver enzymes and proteins. Here is what some common results mean:
ALT and AST: High levels may mean liver damage.
ALP: High levels can point to bile duct problems.
Bilirubin: High levels may cause yellow skin or eyes.
Albumin: Low levels can mean the liver is not making enough protein.
But, many things can affect your results. For example, some medicines or even exercise can change your numbers. Therefore, only a doctor can explain what your results mean for you.
Treatment and Next Steps After Abnormal LFTs
If your liver function test is abnormal, do not panic. Many causes are treatable. Your doctor may order more tests to find the reason. Sometimes, you may need an ultrasound or more blood tests. Treatment depends on the cause. For example, you may need medicine, lifestyle changes, or more follow-up. In some cases, stopping a certain medicine can help. Always talk to your doctor before making any changes.
Lifestyle Tips for Liver Health
Keeping your liver healthy is important. Here are some easy tips to follow:
Eat a balanced diet with fruits and vegetables
- Limit alcohol use
- Stay at a healthy weight
- Exercise regularly
- Avoid sharing needles or personal items
- Get vaccinated for hepatitis if needed
- Take medicines only as prescribed
These steps can help improve liver health and lower your risk of problems.
Prevention: How to Maintain Healthy Liver Function
Prevention is always better than cure. To keep your liver working well, try these steps:
- Wash your hands often to avoid infections
- Use safe practices if you get tattoos or piercings
- Limit processed foods and sugary drinks
Your liver is a vital organ, and a simple Liver Function Test (LFT) is your first step to ensuring its well-being. Don’t wait for symptoms to appear. For accurate results, reliable reports, and expert guidance, trust Aarvi Diagnostic Center. Our advanced technology and commitment to patient care make us the right choice for your health.
Book your LFT with us today and take a proactive step towards a healthier you.