Test Directory
| Test Code | |
| STM | |
| Test Name | |
| Striated Muscle Antibody, IgG Profile | |
| CPT Codes | |
| 86255 | |
| Included Tests | |
| STRIATED MUSCLE ANTIBODY IgG SCREEN | |
| Expected Turnaround Time | |
| 1 - 4 days | |
| Methodology | |
| Semi-Quantitative Indirect Fluorescent Antibody | |
| Reference Intervals | |
|
Less than 1:40 When detected in the presence of acetylcholine receptor (AChR) antibody, striated muscle antibodies, which bind in a cross-striational pattern to skeletal and heart muscle tissue sections, are associated with late-onset myasthenia gravis (MG). Striated muscle antibodies recognize epitopes on three major muscle proteins, including: titin, ryanodine receptor (RyR) and Kv1.4 (an alpha subunit of voltage-gated potassium channel [VGKC]). Isolated cases of striated muscle antibodies may be seen in patients with certain autoimmune diseases, rheumatic fever, myocardial infarction, and following some cardiotomy procedures. |
|
| Reference Lab | |
| ARUP Laboratories | |
| Testing Schedule | |
| Routine, 6 times per week |
The American Medical Association (AMA) Current Procedural Terminology (CPT) codes published by HNL Lab Medicine are guidelines and are intended for informational purposes only. CPT coding is the exclusive responsibility of the billing entity. View the Terms.
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