What to Expect from a Liver Function Test for Alcohol Use Disorder

A clinician may measure enzymes, bilirubin, albumin, and other markers that reflect liver irritation, bile flow, or the liver’s ability to make proteins. Results can be abnormal for many reasons, including medicines, viral infections, metabolic conditions, or recent alcohol use. A normal result does not rule out alcohol-related harm, and an abnormal result does not diagnose Alcohol Use Disorder on its own. The clinician may combine the blood test with questions about drinking patterns, withdrawal symptoms, sleep, mood, and daily functioning.

Ask whether you need to fast or change any medicine; do not stop a prescribed medicine without advice. Tell the phlebotomist about fainting with blood tests and mention supplements or non-prescription products. The sample is taken from a vein, and you can usually return to routine activities unless you feel unwell. If you drink heavily or have withdrawal symptoms, do not suddenly stop without medical guidance: withdrawal can become dangerous and may need supervised care. Keep the follow-up appointment to discuss the result and support options.

Get urgent help for yellow skin or eyes with confusion, vomiting blood, black stools, severe abdominal swelling, fainting, seizures, hallucinations, or severe shaking. These symptoms need prompt assessment rather than waiting for a routine result. A clinician can discuss [Alcohol Use Disorder](/conditions/alcohol-use-disorder/) and explain what your [Liver Function Test](/treatments/diagnostics-and-screening/liver-function-test/) means in context.

Ask which markers are being checked, whether fasting is needed, and what other causes could affect the result. Discuss whether you need imaging, repeat testing, withdrawal support, or a confidential treatment plan for changing alcohol use.