Francisella tularensis Antibodies, IgG and IgM, ELISA Serum

Tularemia Antibody (Francisella tularensis)

Test Codes

EPIC: LAB1231985, Beaker: FrancisellaT, Quest: 12707

Department

Send Outs

Specimen Collection Criteria

Collect (preferred specimen): One Gold-top SST tube.
Also acceptable: One plain Red-top tube.

Physician Office/Draw Specimen Preparation

Centrifuge to separate serum or plasma from cells within two hours of collection. Transfer serum to a plastic transport tube and refrigerate (2-8°C or 36-46°F).

Preparation for Courier Transport

Transport: 0.6 mL serum, refrigerated (2-8°C or 36-46°F). (Minimum: 0.5 mL)

Rejection Criteria

• Gross hemolysis.
• Grossly lipemic.
• Grossly icteric.
• Specimens not collected and processed as indicated.

In-Lab Processing

Centrifuge to separate serum or plasma from cells within two hours of collection. Transfer serum to a plastic transport tube and refrigerate (2-8°C or 36-46°F).

Transport: 0.6 mL serum, refrigerated (2-8°C or 36-46°F). (Minimum: 0.5 mL)

Storage

Specimen Stability for Testing:

Room Temperature (20-26°C or 68-78.8°F): Unacceptable
Refrigerated (2-8°C or 36-46°F): 7 days
Frozen (-20°C/-4°F or below): 30 days

Specimen Storage in Department Prior to Disposal:

Specimen retention time is determined by the policy of the reference laboratory. Contact the Send Outs Laboratory with any questions.

Laboratory

Sent to Quest Diagnostics, Wood Dale, IL.

Performed

Tuesday, Thursday.
Results available in 3-10 days.

Reference Range

By report.

Test Methodology

Enzyme Linked Immunosorbent Assay (ELISA).

Clinical Utility

Francisella tularensis Antibody, IgM and IgG, ELISA, Serum – Aiding in the diagnosis of tularemia caused by Francisella tularensis.

This test should not be used as a test of cure as it is not quantitative. Patients may remain seropositive for months to years following resolution of disease.

CPT Codes

86668x2.
LOINC:  IgG 93717-7, IgM 93716-9, 93718-5.

Contacts

Last Updated

11/19/2025