Interference of Hemoglobin A1c Due to Hemoglobin Franklin Park

HbA1c and interference due to hemoglobin disorders

Measurement of Hemoglobin A1c

Evaluation of glycemia is used for the diagnosis and management of patients with diabetes. Glucose and hemoglobin A1c (HbA1c) provide complementary information and both are used to assess an individual’s glycemic status. The concentration of glucose in the blood indicates the subject’s glycemia at the time of blood sampling. However, blood glucose concentrations are modified by numerous factors...

Unexpected hemoglobin A1c results.

A 52-year-old woman with a medical history of hepatitis B, hyperlipidemia, hypertension, anemia, and depression presented to the internal medicine clinic for a routine visit. Laboratory tests 3 months previously had revealed an impaired fasting glucose concentration of 5.9 mmol/L (106 mg/dL) [reference interval, 3.9 –5.6 mmol/L (70 –100 mg/dL)]. Therefore, a hemoglobin (Hb) A1c analysis was per...

Hemoglobin A1c: Clinical applications and analytical considerations

Diabetes Mellitus (DM) is the most common disorder of carbohydrate metabolism. Hyperglycemia is the common feature of DM. Hyperglycemia causes cardiovascular, renal, ocular, and peripheral nerve disorders in patients with diabetes. Glycemic regulation plays an essential role in controlling these complications. Thus, evaluation of the glycemic control status is crucial in the management of DM. H...

Global Harmonization of Hemoglobin A1c

Measurement of glycohemoglobin (GHb) is widely used in patients with diabetes mellitus as a monitor of longterm glycemic control (1–3). In addition, prospective randomized clinical trials, most notably the Diabetes Control and Complications Trial (DCCT) and the United Kingdom Prospective Diabetes Study (UKPDS), have demonstrated that GHb is a measure of the risk for the development of diabetes ...