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September 3, 1999

A1c (Glycohemoglobin, HgbA1c)

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Question from Easton Pennsylvania, USA:

My 6 year old daughter had a A1c result of 7.6. The problem is she experiences low blood sugar around 40 often. Does insulin change the results of the A1c test? After a low blood sugar level incident, the doctor lowered the insulin dosage; I was wondering if we should have an additional test taken?

Answer:

From: DTeam Staff

HgbA1c reflects the average blood sugar over the past 2-3 months. Usually this test is done every 3 months.

Changes in insulin doses eventually affect the HgbA1c by changing the blood sugar.

TGL