On May 23, the U.S. Food and Drug Administration announced that it is allowing marketing of the COBAS INTEGRA 800 Tina-quant HbA1cDx assay (Tina-quant HbA1cDx assay) for the diagnosis of diabetes by health care professionals. This is the first HbA1c test that FDA has allowed to be marketed for this use. The HbA1c tests, or A1c tests, currently on the market are FDA-cleared for monitoring a patient’s blood glucose (sugar) control, but not for diagnosing diabetes. A1c tests measure the percentage of hemoglobin A1c that is bound to glucose, giving a patient’s average glucose level over a three-month period.