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HelpTest Code SMA Anti-Smooth Muscle Antibody
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: | 2 days |
| Frozen: | 1 year |
Reference Interval
No antibody detected: <20 Units
Borderline: 20 – 30 Units
Positive: >30 Units
Days and Times Performed
Monday, TAT 2-8 days
Methodology
Enzyme Immunoassay
Service Code
32141
Update
last updated 26/02/2022
Unacceptable Condition
| Haemolysis: | Gross reject |
|---|---|
| Icterus: | NA |
| Lipaemic: | Gross reject |
| Others: | NA |
Testing Laboratory
National University Hospital
Clinical Chemistry, 67724346
Useful For
Positive in 50-80% patients with chronic active hepatitis. Negative in extraheptic biliary obstruction.
Alias
SMA (Smooth Muscle Antibodies), Actin,
F-Actin