Skeletal muscle antibodies - serum
Last updated: Friday, 26, March, 2004
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| Item | Process |
|---|---|
| Specimen | 5 mL blood in plain tube. |
| Method | Indirect IF. |
| Reference Interval | Not detected. |
| Application | Assessment of patients with documented myasthenia gravis; detected in 40% of affected subjects, but in over 90% of those with thymoma. Acetylcholine receptor antibodies should also be requested. |
| Interpretation | A positive result indicates that the possibility of thymoma should be actively investigated. |
| Reference | Skeie G. Annals of the New York Academy of Science 2003; 998: 343-350. |