Striated Muscle Antibody, IgG with Reflex to Titer

Abbrev Code:ASTAB   
Order Code:LAB728Order Name:Striated Muscle Antibody IgG
Synonyms:Anti-Striated Muscle Antibody
Methodology:Indirect fluorescent antibody
CPT Codes: 86255 x1, 86256 x1
Turnaround Time:Specimens are sent to reference laboratory Mon-Sat; results are reported in 1-5 days.

This test uses a manufacturer labeled Analyte Specific Reagent (ASR) as the reagent providing the specificity of the assay. The test was developed and its performance characteristics determined by ARUP Laboratories. It has not been cleared or approved by the US Food and Drug Administration. This test was performed in a CLIA certified laboratory and is intended for clinical purposes.

Collection Instructions

Optimal Volume:2 mL
Minimum\Peds Volume:0.5 mL
Container:Red (no gel)
Alternate Containers: Red or gold (gel)
Causes for Rejection:Plasma, severe lipemia, gross hemolysis

Processing and Shipping

Specimen Processing:Separate serum from cells within 2 hours of collection. Centrifuge and aliquot 1 mL, 0.15 mL minimum. Store in refrigerator.
Shipping Instructions:Ship at refrigerated temperature.
Stability:48 hours at room temperature; 2 weeks refrigerated; 1 year frozen.
Test Performed at or Referral Lab Lab Sendouts  (ARUP)
Referral Lab number:50746


Reference Range:


Less than 1:40 – No antibody detected



Use: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.

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