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HbA1c
(a.k.a Glycated Haemolglobin)
minimum sample volume required ~ 4ml
Tube type: EDTA
Special instructions
Microvette collection tubes for paediatric samples are also acceptable.
Interfering substances- none known
Add on time limit = 3 days
Minimum retesting interval:
Test should not be repeated within 60 days
Reference range
When HbA1c is requested for diabetes monitoring: QOF control targets are 59, 64, 75.--------------For diabetes diagnosis see below.
Units
mmol/mol HbA0
Turnaround Time
2
days
Department: Haematology
Clinical Application
1. Long term monitoring of diabetes contol.---------------------------------------------------------------------
2. Diagnosis of diabetes in appropriate individuals (see Diagnosis of Diabetes Mellitus guideline below for further information).---------------------------------------------------------------------------
-HbA1c <42 mmol/mol: Not consistent with diabetes mellitus, but may still be at high risk. Review lifestyle measures and monitor as clinically indicated.-----------------------------------------------
HbA1c 42-47 mmol/mol: High diabetes risk. Provide intensive lifestyle advice and monitor HbA1c at least annually.--------------------------------------------------------------------------------------------
HbA1c >47 mmol/mol: Diagnostic of diabetes mellitus (NB: repeat to confirm within two weeks in asymptomatic patients).
