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HelpTest Code ACAB Acetylcholine Receptor Antibodies (ACAB)
Specimen Requirements
Specimen Type: Serum
Container/Tube: Gold Top (SSTII) / Red Top
Volume: 5.0mL / 6.0mL blood
Minimum volume: 0.5mL serum
Collection Instructions: Allow specimen to clot for 30 minutes and centrifuge within 2 hours
Sample Stability
** Preferred temperatures for storage prior to and during shipping to NUH **
| Specimen Type: | Serum |
|---|---|
| Ambient: | 8 hours |
| Refrigerate: | 1 week |
| Frozen: | 6 months |
Reference Interval
| Negative | < 0.25 nmol/L |
|---|---|
| Borderline | 0.25 – 0.40 nmol/L |
| Positive | > 0.40 nmol/L |
Days and Times Performed
Thursday, TAT 8 - 16 days
Methodology
Radioimmunoassay
Service Code
0031886
Update
Last updated on 05/09/2024
Updated on Sample Stability on Ambient
Unacceptable Condition
| Haemolysis | Gross reject |
|---|---|
| Icterus | Gross reject |
| Lipaemic | Gross reject |
| Others | NA |
Testing Laboratory
National University Hospital
Clinical Chemistry, 67724399
Useful For
Autoantibodies to acetylcholine receptor are responsible for failure of the neuromuscular junction in myastenia gravis and measurement of the antibodies can be of value in disease diagnosis.