Francisella tularensis Antibody - LG743


Sunquest Code:TULAB  
Epic Code:LAB5965Epic Name:Francisella Tularensis Aby IgG
Synonyms:Tularemia
Methodology:Enzyme-linked immunoasorbent assay
CPT Code:86668
Turnaround Time:Specimens are sent to reference laboratory Mon-Sat; results are reported in 1-6 days.
Compliance:

This test was developed and its performance characteristics determined by ARUP Laboratories. The U.S. Food and Drug Administration has not approved or cleared this test; however FDA clearance or approval is not currently required for clinical use. The results are not intended to be used as the sole means for clinical diagnosis or patient management decisions.



Collection Instructions

Specimen:Blood
Optimal Volume:2 mL
Minimum\Peds Volume:0.5 mL
Causes for Rejection:Contaminated, heat-inactivated or turbid specimens


Processing and Shipping

Specimen Processing:Centrifuge within 2 hours of collection and aliquot 1 mL, 0.15 mL minimum. Store in refrigerator.
Shipping Instructions:Ship at refrigerated temperature.
Test Performed at or Referral Lab Lab Sendouts  (ARUP)
Referral Lab number:2005350


Interpretive

Reference Range:

Francisella tularensis, Antibody, IgG

9 U/mL or less

Negative – No significant level of IgG antibody to Francisella tularensis detected

10-15 U/mL

Equivocal – Questionable presence of IgG antibody to Francisella tularensis. Repeat testing in 10-14 days may be helpful.

16 U/mL or greater

Positive – Presence of IgG antibody to Francisella tularensis detected, suggestive of current or past exposure/immunization.

 

Francisella tularensis, Antibody, IgM

9 U/mL or less

Negative – No significant level of IgM antibody to Francisella tularensis detected

10-15 U/mL

Equivocal – Questionable presence of IgM antibody to Francisella tularensis. Repeat testing in 10-14 days may be helpful.

16 U/mL or greater

Positive – Presence of IgM antibody to Francisella tularensis detected, suggestive of current or past exposure/immunization.

 

Cross reactivity with Brucella and Yersinia antibodies may occur. Therefore, results should be interpreted with caution and correlated with clinical information. The best evidence for current infection is a significant change on two appropriately timed specimens, where both tests are performed in the same laboratory at the same time.

 



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