Preparation

• Fasting: Fasting is usually not required. However, avoiding an excessively fatty meal right before blood collection is recommended.

• Dietary Intake: You should ideally include the foods being tested in your regular diet in the weeks leading up to the test; avoiding a food for a long period may cause false-negative IgG results.

• Medications: Inform the lab if you are taking immunosuppressive drugs or corticosteroids, as they might alter antibody levels.

• Sample Type: Standard venous blood sample collection.