Liver Function Tests: What You Need to Know

Hello, lovely readers! I’m Elisabeth, head nurse at Genexia Health, here to chat about something that might sound a bit daunting but is actually quite fascinating: liver function tests. So, your doctor has ordered a bunch of blood tests, including one for your liver function. What does this mean, and what can you expect? 

What is a Liver Function Test (LFT)?

First things first, let’s break down what exactly a liver function test is. It’s a blood test that helps evaluate how well your liver is working. Your liver is a powerhouse organ, responsible for processing nutrients, filtering blood, and removing toxins from your body. An LFT can help detect liver damage or disease early on (such as cirrhosis or hepatitis), allowing for timely intervention.

What is it Looking For?

An LFT measures various enzymes, proteins, and substances in your blood that are produced or excreted by the liver. These include:

1. Alanine aminotransferase (ALT) and Aspartate aminotransferase (AST): Elevated levels may indicate liver damage.

2. Alkaline phosphatase (ALP): High levels could suggest liver disease or bile duct blockage.

3. Albumin and Total protein: Low levels may indicate liver damage or disease.

4. Bilirubin: Elevated levels may indicate liver disease or an issue with bile flow.

Normal ranges can vary slightly depending on the lab and your specific situation, so it’s best to discuss your results with your healthcare provider. Generally, normal results indicate that your liver is functioning properly, while abnormal results may suggest liver damage, disease, or other conditions that warrant further investigation to determine the underlying cause.

Your healthcare provider may recommend additional tests, such as imaging studies (like ultrasound or MRI) or other blood tests, to get a clearer picture of what’s going on with your liver. Depending on the findings, they may also refer you to a specialist, such as a gastroenterologist or hepatologist, for further evaluation and management.

Treatment for abnormal LFT results will vary depending on the underlying cause. For example, if the abnormal results are due to liver damage from alcohol use it is recommended to make some lifestyle changes and/or possibly take some medication to help protect your liver. If a specific liver condition, such as hepatitis or fatty liver disease, is identified, treatment will be tailored to address that condition.

How to Prepare for an LFT:

Preparing for an LFT is typically straightforward. You may be asked to fast for a certain period before the test, usually around 8-12 hours. It’s also a good idea to avoid alcohol for at least 48 hours before the test, as it can affect liver enzyme levels.

In conclusion, liver function tests are valuable tools for assessing the health of your liver. Remember, all blood tests, including LFTs, can be done in the comfort and privacy of your home by Genexia Health. Simply email your requisition to [email protected] to receive a quote. Take care of your liver, and it will take care of you!

Warm regards,

Elisabeth