Liver-Kidney Microsome (LKM-1) Antibody Test – Details & Precautions

The LKM-1 Antibody Test is a blood test used to detect Liver-Kidney Microsome Type 1 (LKM-1) antibodies, which are associated with autoimmune hepatitis type 2 (AIH-2). It helps differentiate autoimmune liver diseases from other forms of hepatitis or liver dysfunction.

Details of the LKM-1 Antibody Test

Purpose

• Diagnoses Autoimmune Hepatitis Type 2 (AIH-2), a rare liver disease.
• Differentiates AIH-2 from viral hepatitis, drug-induced hepatitis, and other liver disorders.
• Evaluates patients with chronic liver disease and unexplained liver inflammation.
• Helps guide treatment decisions for autoimmune liver diseases.

Test Method

• A blood sample is drawn from a vein in the arm.
• The sample is analyzed using ELISA (Enzyme-Linked Immunosorbent Assay) or Indirect Immunofluorescence (IIF) to detect LKM-1 antibodies.

Precautions for the LKM-1 Antibody Test

Before the Test

✅ Fasting:

• Not required.

✅ Hydration:

• Drink plenty of water before the blood draw.

✅ Medication Restrictions:

• Inform your doctor if you take steroids, immunosuppressants, or liver medications, as they may affect results.

✅ Recent Infections or Liver Conditions:

• If you have viral hepatitis (Hepatitis B, C) or liver disease, inform your doctor, as these conditions can influence antibody levels.

During the Test

• A small blood sample is taken.
• Mild pain or bruising may occur at the injection site.

After the Test

✅ Resume normal activities immediately.
✅ Monitor for dizziness if you have low blood pressure.