ARUP's Laboratory Test Directory

Titin Antibody : 2005636
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Additional Technical Information
  


Mnemonic: TITIN AB

Methodology: Semi-Quantitative Enzyme-Linked Immunosorbent Assay
Performed: Thu
Reported: 1-8 days
Specimen Required: Collect: Plain red or serum separator tube

Specimen Preparation: Separate serum from cells ASAP or within 2 hours of collection. Transfer 1 mL serum to an ARUP Standard Transport Tube. (Min. 0.5 mL)

Storage/Transport Temperature: Refrigerated. Also acceptable: Frozen

Unacceptable Conditions: Moderately icteric serum

Stability (collection to initiation of testing): After separation from cells: Ambient: 2 hours; Refrigerated: 1 week; Frozen: 1 month (avoid multiple freeze/thaw cycles)
Reference Interval:
Effective January 17, 2012
Titin Antibody
Negative 0.00-0.45 IV
Indeterminate 0.46-0.71 IV
Positive 0.72 IV or greater

Interpretive Data: In patients with early-onset myasthenia gravis with anti-acetylcholine receptor antibodies, the presence of titin antibody indicates a 95-100 percent likelihood of an underlying thymoma

See Compliance Statement D: www.aruplab.com/CS
CPT Code(s): 83516