Haemoglobin A1c: Analysis and Standardisation
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W. Garry John
Abstract
The measurement of glycated haemoglobin has become centrally important in the monitoring of glycaemic control in the patient with diabetes. A number of analytical techniques have been described to measure this important haemoglobin fraction, and the fraction measured depends on the technique used; this has resulted in laboratories reporting different fractions i.e., HbA1c, Hba1c and total glycated haemoglobin. This paper outlines methods currently used in clinical laboratories for the measurement of this glycated fraction. It describes the principles behind these methods and goes on to describe the new IFCC reference method, which will be used in the future to standardise methods used in the clinical laboratory. Analytical goals and factors that interfere with methods are also discussed.
Copyright © 2003 by Walter de Gruyter GmbH & Co. KG
Artikel in diesem Heft
- Editors' Introduction: Welcome to the Special Issue on Diabetes Mellitus
- Linking Research and Innovative Clinical Practice: The Story of Diabetes Mellitus
- Insulin Resistant States and Insulin Signaling
- Diabesity: An Inflammatory Metabolic Condition
- Plasma Adiponectin and Hyperglycaemia in Diabetic Patients
- Platelet Function and Acetyl-Coenzyme A Metabolism in Type 1 Diabetes Mellitus
- Oxidative Stress in Diabetes
- Carbonyl Stress and Diabetic Complications
- Chemical Modification of Proteins by Lipids in Diabetes
- Glyoxal and Methylglyoxal Levels in Diabetic Patients: Quantitative Determination by a New GC/MS Method
- Dyslipidemia in Patients with Type 2 Diabetes. Relationships between Lipids, Kidney Disease and Cardiovascular Disease
- Haemoglobin A1c – A Marker for Complications of Type 2 Diabetes: The Experience from the UK Prospective Diabetes Study (UKPDS)
- Glycated Hemoglobin Standardization – National Glycohemoglobin Standardization Program (NGSP) Perspective
- Haemoglobin A1c: Analysis and Standardisation
- Point-of-Care Testing in Diabetes Mellitus
- Evaluation of Portable Blood Glucose Meters. Problems and Recommendations
- Measurements of Glucose on the Skin Surface, in Stratum Corneum and in Transcutaneous Extracts: Implications for Physiological Sampling
- Biological Variability of Albumin Excretion Rate and Albumin-to-Creatinine Ratio in Hypertensive Type 2 Diabetic Patients
- Clinical and Laboratory Evaluation of Specific Chemiluminescence Assays for Intact and Total Proinsulin
- Clinical Impact of the New Criteria for the Diagnosis of Diabetes Mellitus
- The Effect of the New ADA and WHO Guidelines on the Number of Diagnosed Cases of Diabetes Mellitus
- Detecting Type 2 Diabetes by a Single Post-Challenge Blood Sample
- Laboratory Tests in Diagnosis and Management of Diabetes Mellitus. Practical Considerations
- Obesity, Glucose Intolerance and Diabetes and Their Links to Cardiovascular Disease. Implications for Laboratory Medicine
- Meetings and Awards
Artikel in diesem Heft
- Editors' Introduction: Welcome to the Special Issue on Diabetes Mellitus
- Linking Research and Innovative Clinical Practice: The Story of Diabetes Mellitus
- Insulin Resistant States and Insulin Signaling
- Diabesity: An Inflammatory Metabolic Condition
- Plasma Adiponectin and Hyperglycaemia in Diabetic Patients
- Platelet Function and Acetyl-Coenzyme A Metabolism in Type 1 Diabetes Mellitus
- Oxidative Stress in Diabetes
- Carbonyl Stress and Diabetic Complications
- Chemical Modification of Proteins by Lipids in Diabetes
- Glyoxal and Methylglyoxal Levels in Diabetic Patients: Quantitative Determination by a New GC/MS Method
- Dyslipidemia in Patients with Type 2 Diabetes. Relationships between Lipids, Kidney Disease and Cardiovascular Disease
- Haemoglobin A1c – A Marker for Complications of Type 2 Diabetes: The Experience from the UK Prospective Diabetes Study (UKPDS)
- Glycated Hemoglobin Standardization – National Glycohemoglobin Standardization Program (NGSP) Perspective
- Haemoglobin A1c: Analysis and Standardisation
- Point-of-Care Testing in Diabetes Mellitus
- Evaluation of Portable Blood Glucose Meters. Problems and Recommendations
- Measurements of Glucose on the Skin Surface, in Stratum Corneum and in Transcutaneous Extracts: Implications for Physiological Sampling
- Biological Variability of Albumin Excretion Rate and Albumin-to-Creatinine Ratio in Hypertensive Type 2 Diabetic Patients
- Clinical and Laboratory Evaluation of Specific Chemiluminescence Assays for Intact and Total Proinsulin
- Clinical Impact of the New Criteria for the Diagnosis of Diabetes Mellitus
- The Effect of the New ADA and WHO Guidelines on the Number of Diagnosed Cases of Diabetes Mellitus
- Detecting Type 2 Diabetes by a Single Post-Challenge Blood Sample
- Laboratory Tests in Diagnosis and Management of Diabetes Mellitus. Practical Considerations
- Obesity, Glucose Intolerance and Diabetes and Their Links to Cardiovascular Disease. Implications for Laboratory Medicine
- Meetings and Awards