What can cause a high hemoglobin A1c test?

Poor sugar control. Hemoglobin A1c measures average blood sugar over approximately the past 3 months. It is the measure of how much hemoglobin is attached to sugar molecules in the blood. Sugar in your blood binds to the hemoglobin of the red blood cell and stays there throughout the cell's lifetime (120 days). At high levels of blood sugar, more reacts w/ the hemoglobin, causing an elevated hemoglobin a1c.
Diabetes mellitus . Poorly controlled blood sugar levels over time, as in diabetes mellitus, results in higher levels of HGB a1c. If your HGB a1c is elevated, you should discuss with your doctor about diet, exercise, weight loss, and possibly medications.

Related Questions

Is it normal to have normal glucose levels while having a high hemoglobin A1c level?

It could happen. High A1c means you have a high average bs over the last 2-3 months. If you checked bs at the wrong tme, sometimes you will get a normal bs number. The more bs you check, the less likely you will find a normal bs with a high a1c. Read more...
Different. Pretend a glucose level is like taking a snapshot in one point in time. The hemoglobin A1c is like viewing a movie over time. So you could have high glucose over time and have one reading, ie the glucose that is normal. Read more...

Do you fast for a hemoglobin A1c test?

Short answer. The test measures indirectly measures glucose control over the preceding 6-8 weeks. It does not measure sugar directly; therefore i would believe it not to be necessary to fast prior to the test. However, the best way to answer this question is to call the lab where you go to have the blood drawn and ask them directly whether you need to fast for the test. Read more...

What does a hemoglobin A1c test level of 4.84 indicate?

Low normal. Hi. That A1c is low in the normal range, and miles from diabetes. IF you have diabetes and have so much as ONE hypoglycemic episode (BG . Read more...