HbA1c

Reference range: 

Normal                            20-41 mmol/mol               4.0-5.9%

Pre-Diabetes                    42-47 mmol/mol               6.0-6.4%

Diabetes Mellitus              ≥ 48 mmol/mol                 ≥ 6.5%

Units: 
mmol/mol Hb
Sample type and Volume required: 
EDTA
Turnaround time: 
3 days
Storage and transport: 
EDTA
Contacts:
Blood Sciences Department-Guy's And St Thomas' Hospital
Result Query: 020 7188 8008
St Thomas' Hospital
North Wing - 5th Floor
Westminster Bridge Road
London SE1 7EH
Contact: 020 7188 9247

Guy's Hospital
Southwark Wing - 4th Floor
Great Maze Pond
London SE1 9RT
Contact: 020 7188 4781
Automated Chemistry Laboratory at Guy's and St Thomas' Clinical Advisory Service
Monday – Friday, 09:00-17:00 h: 07738897061
Out of hours, weekends & bank holidays: find details on Rotawatch on Trust intranet GTi, or contact via GSTT switchboard.
For clinical advice or interpretation of results, please contact the laboratory in the first instance.

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Last updated: 07/02/2018