How come the c-peptide test I had done was so low, yet, I have maintained an A1c of 5.9 for 3 years? It showed I produce 5-10% of my own insulin. I have had several emergency room visits in which they found keytones, I was diagnosed as severe brittle at age 34. The internist, who was excellent, said because I had untreated childhood diabetes, I was very brittle ( am). What I cannot understand is why my diabetic numbers showed up atrociously in other tests, but barely in the A1c. ANNE
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