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    Tularemia Agglutinins

    Item Value
    Approval req'd? No
    Available Stat? No
    Test code TULA
    Performed by Focus via Quest
    Sendout? Yes
    Method Direct Agglutination
    Container type Red top (Gold top acceptable)
    Amount to Collect 2 mL blood
    Sample type Serum
    Preferred volume 1 mL serum
    Min. Volume 0.5 mL serum
    Processing notes Freeze sample at -20C. Order Quest # 35176X
    Units Titer
    Normal range Negative titer < 20 Equivocal titer 20-80 Positive titer > 80
    Synonyms Francisella; Tularemia antibodies
    Stability Refrigerated 2 days, frozen at -20C 1 week
    Turn around times Test performed daily. Turnaround time: 3-5 days.
    Additional information Tularemia antibody titers ≥ 1:20 are of diagnostic significance. However, titers in this range may also indicate previous infection. Antibody begins to appear 2-3 weeks post-onset and generally peaks at approximately 5 weeks into the disease. Based on the antibody production pattern, a second specimen will usually demonstrate a diagnostic four fold rise for patients with active disease.
    CPT coding 86000-90
    LOINC code 23125-8
    Last Updated 10/2/2010 11:52:46 AM
    Entry Number 986
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