- Aug 28, 2015
The hemoglobin A1C test for blood sugar, a standard assay for diabetes, may not perform as well in people with sickle cell trait, a study finds. fotostorm/Getty Images/iStockphoto hide caption toggle caption fotostorm/Getty Images/iStockphoto
A widely used blood test to measure blood-sugar trends can give imprecise results, depending on a person's race and other factors. This test means diabetes can sometimes be misdiagnosed or managed poorly.
Doctors have been cautioned before that results from the A1C test don't have pinpoint accuracy. A study published Tuesday underscores that shortcoming as it applies to people who carry the sickle cell trait.