Decoding Abnormal Liver Function Tests (LFTs)

Ultrasound exam

The liver, a vital organ responsible for numerous essential functions in our body, often remains silent in its suffering. However, through a series of tests known as liver function tests (LFTs), we can decipher the hidden messages it sends us. Abnormal LFTs can be alarming, but they serve as warning signs, urging us to pay attention to our liver’s well-being. In this article, we will delve into the world of abnormal liver function tests, exploring their significance, causes, symptoms, and potential treatments. So, let’s embark on this journey of understanding the signals our liver sends us and learn how to safeguard its health.

What are Liver Function Tests (LFTs)?

Liver function tests, commonly referred to as LFTs, are a battery of blood tests that measure various enzymes, proteins, and other substances produced or processed by the liver. These tests help evaluate the liver’s overall health and detect any abnormalities or impairments in its functioning.

The Role of the Liver in Our Body

  • Our liver plays a crucial role in maintaining our well-being. It performs a multitude of functions, including but not limited to:
  • Metabolizing nutrients: The liver converts carbohydrates, proteins, and fats into substances our body can use for energy and growth.
  • Detoxifying harmful substances: It neutralizes and eliminates toxins, drugs, and alcohol from our bloodstream, safeguarding our body from potential harm.
  • Producing essential proteins: The liver synthesizes proteins necessary for blood clotting, immune function, and other vital processes.

Understanding Abnormal Liver Function Tests (LFTs)

Abnormal liver function tests indicate deviations from the normal ranges of enzymes, proteins, and other substances measured. These abnormalities can signify an array of underlying conditions or diseases affecting the liver.

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Causes of Abnormal LFTs

  1. Alcohol-related liver disease: Excessive alcohol consumption can lead to inflammation, scarring, and cirrhosis of the liver.
  2. Viral hepatitis: Infections caused by hepatitis viruses (A, B, C, D, and E) can lead to liver inflammation and impair its function.
  3. Non-alcoholic fatty liver disease (NAFLD): The accumulation of excess fat in the liver, often associated with obesity and metabolic disorders, can cause liver damage.
  4. Medications and toxins: Certain medications, herbal supplements, and exposure to toxins can adversely affect liver function and contribute to abnormal LFT results.

Symptoms and Indicators of Abnormal LFTs

  • Abnormal LFTs often manifest through various symptoms, such as:
  • Jaundice: A yellowish discoloration of the skin and eyes due to elevated bilirubin levels.
  • Fatigue and weakness: The liver’s compromised function can result in low energy levels and general feelings of fatigue.
  • Digestive issues: Abdominal pain, loss of appetite, nausea, and vomiting may indicate liver dysfunction.

Diagnostic Procedures for Abnormal LFTs

In addition to LFTs, healthcare professionals may recommend further tests and imaging techniques to identify the cause of abnormal liver function. These may include ultrasounds, CT scans, MRIs, or liver biopsies, which involve extracting a small sample of liver tissue for microscopic examination.

Treatment Options for Abnormal LFTs

  • Treatment for abnormal LFTs depends on the underlying cause and severity of liver damage. Potential treatment options include:
  • Lifestyle changes: Adopting a healthy diet, maintaining a moderate alcohol intake or abstaining completely, and engaging in regular exercise can promote liver health.
  • Medications and therapies: Depending on the specific condition, doctors may prescribe medications or therapies to manage the underlying cause of abnormal LFTs.
  • Surgical interventions: In advanced cases, liver transplantation or surgical procedures to treat underlying conditions may be necessary.
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Prevention and Liver Health Maintenance

  • Prevention is key to maintaining a healthy liver. To protect your liver and minimize the risk of abnormal LFTs, consider the following practices:
  • Embrace a healthy lifestyle: Consume a balanced diet, exercise regularly, maintain a healthy weight, and avoid excessive alcohol consumption.
  • Vaccination against viral hepatitis: Protect yourself against hepatitis A and B by getting vaccinated.
  • Regular check-ups and screenings: Schedule regular medical check-ups, including LFTs, to monitor your liver health and detect any potential issues early on.


Abnormal liver function tests serve as crucial indicators of our liver’s well-being. By understanding the signals they provide, we can take proactive steps to protect and maintain our liver health. Remember, a healthy liver is the foundation of overall well-being, so prioritize its care. Regular check-ups, adopting a healthy lifestyle, and seeking timely medical attention can go a long way in ensuring a healthy liver and a healthier you.


Abnormal LFTs can raise suspicion of liver cancer, but further diagnostic tests are needed to confirm the diagnosis.

While certain natural remedies are claimed to support liver health, it’s important to consult a healthcare professional for appropriate guidance.

The duration for LFTs to return to normal varies depending on the underlying cause and individual circumstances. It’s best to consult a healthcare professional for personalized information.

In the early stages, abstaining from alcohol and adopting a healthy lifestyle can potentially reverse alcohol-related liver damage. However, advanced liver cirrhosis may be irreversible and may require medical interventions.

Note: Remember, it’s always a good idea to consult a healthcare professional or registered dietitian before making significant changes to your diet, especially if you have any underlying health conditions or specific dietary requirements.


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