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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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