HbA1c as a Diagnostic Test for Diabetes


Whilst subject to some controversy over a number of years, Glycated haemoglobin (HbA1c) is now used as a diagnostic tool in diagnosing diabetes as well as being a monitoring tool.

This short module provides an overview of what HbA1c is, how it is used and the benefits and limitations of it as a diagnostic and monitoring tool. It provides the current guidelines and conditions for diagnosis of diabetes. Recently Australia changed its reporting of HbA1c from percentages to mmol/mol. This module provides the new measures.

This module is aimed at anyone providing clinical care and patient education to people at risk of developing diabetes or with diabetes.

Learning Objectives

At the end of this module participants will be able to:

  • Understand how Glycated haemoglobin is used in diagnosing diabetes.
  • Understand the HbA1c Guidelines and conditions for diagnosis of diabetes.
  • Understand how to interpret HbA1c results.
  • Know the limitation of HbA1c testing.

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