Type 1a/1.5 is Latent Autoimmune Diabetes of Adulthood and is characterized by a single specific islet cell autoantibody.

• A. True
• B. False
• C. It has multiple autoantibodies
• D. It has no autoantibodies

Answer: (A)

Latent Autoimmune Diabetes of Adulthood is an autoimmune form of diabetes that appears in adults. The defining feature is immune activity against pancreatic islet cells, detected by autoantibodies. The most commonly identified antibody in LADA is against GAD65, and many patients have just that single autoantibody detected at diagnosis. This pattern—an autoimmune diabetes in which one specific islet cell autoantibody (often GAD65) is present—fits the statement. While some individuals can show additional autoantibodies, the presence of an autoantibody, particularly the single one most commonly seen, is the characteristic scenario for LADA.