Home
HelpTest Code ACAB Acetylcholine Receptor Antibodies (ACAB)
Laboratory Code
LAB5024
Specimen Requirements
Specimen Type: Serum
Container/Tube: Gold Top (SSTII) / Red Top
Volume: 5.0 mL / 6.0 mL blood
Minimum volume: 0.5 mL serum
Collection Instructions: Allow specimen to clot for 30 mins and centrifuge within 2 hrs
Specimen Stability
| Specimen Type | Serum |
|---|---|
| Ambient | 8 hours |
| Refrigerate | 1 week (preferred) |
| Frozen | 6 months |
Methodology
Radioimmunoassay
Days and Times Performed
Thursday, TAT 8 - 16 days
Specimen Condition
| Gross Haemolysis | Reject |
|---|---|
| Gross Icterus | Reject |
| Gross Lipaemia | Reject |
| Others | Not applicable |
Reference Interval
| Negative | < 0.25 nmol/L |
|---|---|
| Borderline | 0.25 – 0.40 nmol/L |
| Positive | > 0.40 nmol/L |
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.
Service Code
31886
LOINC Code Information
68937-2
Update
Last updated 24/02/2025