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Test Name:
Striated Muscle IgG Antibody with Titer if Indicated
- SBMF No:
44486 - Performance Lab Name:
ARUP Laboratories - Test Mnemonic:
STR MUSC - ABN:
Not required - CPT Code:
86255
If indicated, add 86256 - LOINC Code:
29998-2; 29998-2 - Ref Lab Test No:
0050746 - Test Includes:
Striated Muscle IgG Antibody
Titer if Indicated - Also Known As:
Anti-Striated Muscle Antibody, IgG
Skeletal Muscle IgG Antibody
Striational Muscle IgG Antibody - Spec Type:
Serum - Spec Container:
Gold top (SST) or red top (serum) tube - Pref Vol:
1.0 mL - Min Vol:
0.15 mL - Fasting:
No - Spec Collect:
Routine venipuncture - Spec Process:
Clot 30 minutes
Promptly centrifuge 15 minutes
Immediately transfer serum to separate plastic tube - Spec Store Transport:
Refrigerated - Spec Stability:
After separation from cells:
48 hours room temperature (20-30°C)
2 weeks refrigerated (2-8°C)
1 year frozen (-20°C) – Do not use frost-free units that undergo repeated freeze/thaw cycles - Spec Reject:
Plasma sample
Contaminated, hemolyzed, or severely lipemic sample - Spec Remarks:
Separate serum from cells ASAP or within 2 hours of collection - Methodology:
Semi-Quantitative Indirect Fluorescent Antibody (IFA) - Clinical Significance:
Refer to:
- Reference Range:
Screen: < 1:40 No antibody detected.
Titer: < 1:40 No antibody detected.Note:
Titers greater than or equal to 1:80 are suggestive of myasthenia; however, striated muscle antibody can be found in rheumatic fever, myocardial infarction, and a variety of post-cardiotomy states. All positives will be titered to endpoint. If Striated Muscle Ab is >1:40, then a titer will be added. Additional charges apply. - Day Run:
Mon-Fri - Time Reported:
2-6 days - Test Type:
IMMUNOLOGY
