The University of Iowa (UIHC)
Department of Pathology
LABORATORY SERVICES HANDBOOK


Striated Muscle Antibody, IgG with Reflex to Titer
Order Code: STRMUS
Epic Lab Code: LAB1356
Order Form: A-1a Miscellaneous Request or Epic Req
  Commercial "Mail-out" Laboratory
6240 RCP
356-3527
Specimen:
Serum
Collection Medium:
Red top tube
Minimum:
Adult Preferred Minimum: 1 mL serum
Adult Absolute Minimum:  0.5 mL serum
Pediatric Minimum: 0.15 mL serum
Rejection Criteria:
Plasma.  Severely lipemic, contaminated, or hemolyzed specimens.
Analytic Time:
5 days upon receipt at reference laboratory
Reference Range:
Screen:  < 1:40 No antibody detected.
Titer:   < 1:40 No antibody detected.
Comments:
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.
Methodology:
Indirect Fluorescent Antibody
CPT Code:
86255 Striated muscle; if reflexed, add 86256 Striated muscle titer: 
additional charges will occur

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Updated: 05/20/2009

Note: The information contained in this handbook is for use by personnel of University of Iowa Health Care. No other use is implied or intended.