When a diagnosis is ambiguous, why do doctors order specific blood tests for "autoantibodies," and what exactly does the presence or absence of these proteins reveal about the underlying root cause of the elevated blood sugar?
What are autoantibodies and why are they tested?
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Autoantibodies are proteins produced by your immune system when it mistakenly attacks your body's own healthy tissues. In the context of diabetes, doctors test for specific autoantibodies (such as GAD, IA-2, and ZnT8) that attack the insulin-producing beta cells in the pancreas. If these autoantibodies are present in the blood, it is a definitive sign that the diabetes is caused by an autoimmune response, confirming a diagnosis of Type 1 (or LADA) rather than Type 2.
[#174] Saturday, July 18, 2026, 9 Hours
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