Here's another example. Your son is 14 years old and has had type I diabetes since he was 5. But his last two GHb results were very high, indicating an average blood glucose level of about 300. This situation requires major detective work. Rarely, a medication that a person is taking interferes with the GHb result, and the reading is too high.
Some people have unusual types of hemoglobin that fool the test.
What's most likely, however, is that your son's home blood glucose tests results are not accurate. It's possible that he's doing his test readings incorrectly or that his glucose meter is defective. That's understandable, but it isn't good for his health. Whatever the reason, it's very important to solve the mystery so your son and his health-care team can work to get the best blood glucose levels that are possible for him. The DCCT results showed that there is a direct link between the glycohemoglobin levels and the risk of developing the complications.