Effect of hemoglobin F on measurements of hemoglobin A1c with physicians' office analyzers

Correlation between Standard Clinical Chemistry and Point of Care Testing Analyzers on Hemoglobin A1C Determination

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...

correlation between standard clinical chemistry and point of care testing analyzers on hemoglobin a1c determination

Influence of variables on hemoglobin A1c values and nonheterogeneity of hemoglobin A1c reference ranges.

INTRODUCTION Hemoglobin A1c (HbA1c) values are influenced by analytical interferences such as HbF and hemoglobin variants and clinical factors such as increased red cell turnover. Although less well-known, demographic factors such as race, age, and sex also influence HbA1c values. The HbA1c reference range should be homogenous in the United States based on the use of National Glycohemoglobin St...

Effect of Iron Deficiency Anemia on Hemoglobin A1c Levels

BACKGROUND Iron deficiency anemia is the most common form of anemia in India. Hemoglobin A1c (HbA1c) is used in diabetic patients as an index of glycemic control reflecting glucose levels of the previous 3 months. Like blood sugar levels, HbA1c levels are also affected by the presence of variant hemoglobins, hemolytic anemias, nutritional anemias, uremia, pregnancy, and acute blood loss. Howeve...