LFTs are blood tests that measure key enzymes and proteins to assess how well your liver is working. When levels of ALT, AST, ALP, GGT, bilirubin, or albumin fall outside the normal range, it may indicate liver inflammation, stress, or injury.
Many people with abnormal LFTs feel fine, but you might notice:
Abnormal LFT results can arise from a variety of conditions, including:
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ALT and AST levels are typically under 40 U/L, but ranges can vary by laboratory. Always compare your results to the specific reference values provided by your testing lab.
The ICD-10 code for abnormal liver function test results is R94.5, which you can use for insurance and medical record purposes.
Yes, many cases can improve or normalize with lifestyle changes such as a healthy diet, regular exercise, reduced alcohol intake, and appropriate medical treatment.
Fasting is usually not required for liver function tests, but follow your physician's instructions or lab requirements if specified.
The frequency of testing depends on your individual risk factors and health status. Some patients are tested every 3-6 months, while others may only need annual checks.
Yes, medications like acetaminophen (Tylenol) and certain herbal supplements can elevate liver enzymes, so inform your doctor of all medicines and supplements you take.
See a gastroenterologist or hepatologist if your LFTs remain abnormal over time, or if you experience symptoms like jaundice, unexplained fatigue, or abdominal pain.
You can support liver health through a balanced diet rich in fruits, vegetables, and whole grains, regular physical activity, adequate hydration, and limited alcohol consumption.
Often, yes. Techniques like abdominal ultrasound, CT scan, or MRI help detect conditions such as fatty liver, tumors, or bile duct blockages that may cause abnormal LFTs.
LFTs alone cannot diagnose cancer, but persistently abnormal results may prompt imaging studies that could reveal tumors or other serious liver conditions.
