Liver Function Test Results: A Patient’s Guide

The liver is a powerhouse organ, silently working behind the scenes to keep us healthy. One way doctors assess its function is through a liver function test (LFT). This blood test measures various enzymes, proteins, and bilirubin levels that can indicate potential problems. But receiving your results can be confusing. Let’s break down what those numbers mean and how to interpret them.

What’s Included in an LFT?

An LFT panel typically includes:

Alanine aminotransferase (ALT) and aspartate aminotransferase (AST): These enzymes rise when liver cells are damaged.
Alkaline phosphatase (ALP): This enzyme indicates bile flow and can be elevated due to liver or bone issues.
Gamma-glutamyl transferase (GGT): Often elevated with excessive alcohol consumption or bile duct problems.
Bilirubin: This waste product increases when the liver can’t process it properly.
Albumin and prothrombin time (PT): These assess protein production and blood clotting, indirectly reflecting liver function.

Understanding the Numbers:

Each test has a normal range, which can vary slightly between labs. Doctors interpret results by considering the specific values, along with overall health and symptoms. Generally:

Slightly elevated levels: May warrant monitoring or further testing depending on the context.
Moderately elevated levels: Can indicate potential issues and may require additional investigation.
Severely elevated levels: Often suggest significant liver damage and need prompt medical attention.

Interpreting the Pattern:

The pattern of elevated enzymes can offer clues:

Both ALT and AST high: Suggests liver cell injury from various causes like hepatitis, toxins, or medications.
AST much higher than ALT: May point towards alcoholic liver disease or muscle damage.
ALP elevated: Could indicate bile duct blockage, bone disease, or, in some cases, liver problems.
GGT elevated: Often linked to heavy alcohol consumption or bile duct issues.

Remember, I’m not a Doctor!

This is just a general overview. Do not diagnose yourself based on LFT results alone. If you have any concerns about your results, discuss them with your doctor. They can interpret the findings in context with your medical history and recommend further action if needed.

Taking Charge of Your Liver Health:

Here are some tips for keeping your liver healthy:

Maintain a healthy weight: Excess fat can strain the liver.
Eat a balanced diet: Limit processed foods, sugary drinks, and unhealthy fats.
Drink alcohol moderately: Excessive alcohol consumption is a major risk factor for liver disease.
Get vaccinated: Protect yourself against hepatitis viruses.
Avoid toxins: Be mindful of medications and potential toxins in your environment.

By understanding your LFT results and adopting healthy habits, you can empower yourself to take control of your liver health.