Anti Striated Muscle Antibody
Anti-Striated Muscle Antibody, ASTM , ARUP #50746, EPIC: LAB6812, SOFT: XASTM
Specimen Collection Criteria
Collect (preferred specimen): One Gold-top SST tube.
Also acceptable: One plain Red-top tube.
Physician Office/Drawsite Specimen Preparation
Let specimen clot 30-60 minutes then centrifuge to separate serum from cells within two hours of collection. Transfer serum to a plastic transport tube and refrigerate (2-8°C or 36-46°F).
Preparation for Courier Transport
Transport: 1.0 mL serum, refrigerated (2-8°C or 36-46°F). (Min: 0.15 mL)
- Hemolyzed specimens.
- Severely lipemic specimens.
- Specimens not collected and processed as indicated.
0,Centrifuged SST tubes may be transported and stored at ambient
temperatures (2o to 30o C; 36o to 86o F) for up to 48 hours.
DO NOT FREEZE TUBES CONTAINING BLOOD. For longer storage, the serum
should be removed from the gel and refrigerated (2o-8o C) or frozen
at -20o C or below.
Red-top tubes and Microtainers® may be stored at ambient temperatures
for up to 16 hours and for up to 3 days at refrigerator temperatures (2o
- 8o C). DO NOT FREEZE TUBES CONTAINING BLOOD. For longer storage,
the serum should be removed from the clot and refrigerated (2o-8o
C) or frozen at -20o C or below.
0,Serum specimens (pour-overs) may be stored at refrigerator temperature
(2o to 8o C; 36o to 47o F) for 5 days, and at -20o
C (-4o F) for up to 3 months. Specimens stored at -70o C
(-94o F) can be stored indefinitely. Avoid multiple freeze/thaw
cycles which may cause loss of antibody activity and give erroneous results.
Monday - Friday.
Results available in 2-6 days.
Less than 1:40 (Screen and Titer).
Semi-Quantitative Indirect Fluorescent Assay.
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 Antibody is greater than 1:40, then a titer will be added.
Anti-striated muscle antibody assay is used as an aid in the diagnosis of thymoma-associated myasthenia gravis.
86255, 86256 (if reflexed).
ARUP #50746, EPIC: LAB6812, SOFT: XASTM
Microtainer® and Vacutainer® are registered trademarks of Becton, Dickinson and Company.
UroVysion® is a registered trademark of Abbott Laboratories. ThinPrep® is a registered trademark of Hologic, Incorporated.
This directory currently reflects information only for specimens collected and/or processed at the
Farmington Hills, Grosse Pointe, Royal Oak, and Troy campuses.