I've noticed that HBA1C and carbohydrate to insulin ration has come up on a few threads, especially the HBA1C. Could anyone explain what these are? Will it be something that is discussed at the DSNs clinic. I'll be attending my first clinic to see how I'm coping with my levels and injections. I take Lantus (24 hour) and Apidra 3 times a day. I really don't know what to ask at the first clinic. Is there anything I could put on a list of questions (questions being Nil at the moment as I haven't a clue what I should be asking). Any help/advice would be great thank you.