What's the relationship between sugar in the blood and hemoglobin?

Hemoglobin A1c test. Sugar coats everything in the blood including hemoglobin in red cells. Since hemoglobin circulates for 3 months before its destruction, we take advantage of that fact to measure hemoglobin A1c to tell average sugar levels over 3 months.

Related Questions

What is the relationship between blood sugar and hemoglobin?

Glycohemoglobin. When you make new red blood cells, the current level of blood sugar is incorporated in the hemoglobin in the new cells. We can check the levels of glycohemoglobin to check your average blood sugar for the preceding 6-8 weeks. This is the length of time it takes to replace your red blood cells. Read more...