Home
HelpTest Code GHB Glycated Haemoglobin A1c (HbA1c)
Specimen Requirements
Specimen Type: Whole Blood (EDTA)
Container/Tube: Lavender top
Volume: 3 mL
Minimum Volume: 2 mL
Sample Stability
** Preferred temperatures for storage prior to and during shipping to NUH **
| Specimen Type: | Whole blood (EDTA) |
|---|---|
| Ambient: | 1 day |
| Refrigerate: | 7 days |
| Frozen: | NA |
Reference Interval
| HbA1c (NGSP) | (IFCC) | |
|---|---|---|
| 4.5 – 6.4 % | 26 – 47 mmol/mol | Ideal |
| 6.5 – 7.0 % | 48 – 53 mmol/mol | Optimal |
| 7.1 - 8.0% | 54 - 64 mmol/mol | Sub-optimal |
| >8.0% | > 64 mmol/mol | Unacceptable |
Days and Times Performed
Monday through Friday, TAT 1-3 days
Methodology
High Performance Liquid Chromatography (HPLC)
Service Code
0031939
Update
Last updated 26/02/2022
Unacceptable Condition
| Haemolysis | NA |
|---|---|
| Icterus | NA |
| Lipaemic | NA |
| Others | Frozen samples |
Testing Laboratory
National University Hospital
Clinical Chemistry, 67724399
Useful For
Long term monitoring of glucose control in diabetes
Alias
GHB