Skip to main content
(Prueba de hemoglobina glucosilada (hemoglobina A1c))
Hemoglobin is the substance inside red blood cells that carries oxygen to the cells of the body. Glucose (a type of sugar) molecules in the blood normally become stuck to hemoglobin molecules - this means the hemoglobin has become glycosylated (also referred to as hemoglobin A1c, or HbA1c). As a person's blood sugar becomes higher, more of the person's hemoglobin becomes glycosylated. The glucose remains attached to the hemoglobin for the life of the red blood cell, or about 2 to 3 months.
A blood test can measure the amount of glycosylated hemoglobin in the blood. The glycosylated hemoglobin test shows what a person's average blood glucose level was for the 2 to 3 months before the test. This can help determine how well a person's diabetes is being controlled over time.
Note: All information is for educational purposes only. For specific medical advice, diagnoses and treatment, consult your doctor.
© 1995–2014 The Nemours Foundation/KidsHealth. All rights reserved.
Find out by selecting your child’s symptom or health condition in the list below:
Download Winter 2014 (PDF)
In the spirit of the holidays, patients, parents and doctors share inspirational stories of healing and hope. From surviving heart failure and a near-death drowning to battling a flesh-eating disease, witness how the impossible became possible thanks to the care patients received at Seattle Children's Hospital.
Miracle Season, hosted by Steve Pool and Molly Shen, aired Dec. 8, 2013, on KOMO 4 TV. The annual holiday special celebrates the remarkable lives of Seattle Children's patients.
Mark Fadool, clinical director of mental health services at Odessa Brown Children's Clinic, provides early warning signs of mental health issues in kids and teens and urges us all to notice the signs and act early.
Seattle Children’s provides healthcare for the special needs of children regardless
of race, sex, creed, ethnicity or disability. Financial assistance for medically
necessary services is based on family income and hospital resources and is provided
to children under age 21 whose primary residence is in Washington, Alaska, Montana
Seattle Children’s Hospital, Research