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Test Code LAB855 Tetanus Toxoid IgG Antibody, Serum

Additional Codes

TTIGS

Useful For

Assessing antibody response to the tetanus toxoid vaccine, which should be performed at least 3 weeks after immunization

 

Aiding in the evaluation of immunodeficiency

 

This test should not be used to diagnose tetanus infection.

Method Name

Enzyme Immunoassay (EIA)

Specimen Type

Serum


Specimen Required


Supplies: Sarstedt Aliquot Tube, 5 mL (T914)

Collection Container/Tube:

Preferred: Serum gel

Acceptable: Red top

Submission Container/Tube: Plastic vial

Specimen Volume: 0.5 mL

Collection Instructions: Centrifuge and aliquot serum into a plastic vial.


Specimen Minimum Volume

0.4 mL

Specimen Stability Information

Specimen Type Temperature Time Special Container
Serum Refrigerated (preferred) 30 days
  Frozen  30 days
Medical University of South Carolina Note:

    On-campus collections: Tube to 99 or deliver to University Extension Hospital Room EH318 
Send in plastic vial, Refrigerated
 
Off-campus collections: 
Centrifuge and aliquot within 2 hours.
Specimen to be stored/transported Refrigerated
 

Reject Due To

Gross hemolysis Reject
Gross lipemia Reject
Gross icterus Reject

Reference Values

Vaccinated: Positive (≥0.01 IU/mL)

Unvaccinated: Negative (<0.01 IU/mL)

Interpretation

Results greater than or equal to 0.01 suggest a vaccine response.

 

A tetanus toxoid booster should be strongly considered for patients with anti-tetanus toxoid IgG values between 0.01 and 0.5 IU/mL.

 

Some cases of tetanus, usually mild, have occasionally been observed in patients with a measurable serum level of 0.01 to 1.0 IU/mL.

Method Description

The Anti-Tetanus Toxoid enzyme-linked immunosorbent assay provides a quantitative in vitro assay for detecting human IgG-class antibodies to Tetanus toxoid. The test kit contains reagent wells coated with tetanus toxoid. In the first reaction step, diluted patient samples are incubated in the wells. In the case of positive samples, specific IgG antibodies will bind to the antigens. To detect the bound antibodies, a second incubation is carried out using an enzyme-labeled anti-human IgG (enzyme conjugate), catalyzing a color reaction.(Unpublished Mayo method)

Day(s) Performed

Monday through Friday

Report Available

Same day/1 to 4 days

Specimen Retention Time

14 days

Performing Laboratory

Mayo Clinic Laboratories in Rochester

CPT Code Information

86317

LOINC Code Information

Test ID Test Order Name Order LOINC Value
TTIGS Tetanus Toxoid IgG Ab, S 53935-3

 

Result ID Test Result Name Result LOINC Value
TETG Tetanus IgG Ab 26643-7
DEXTG Tetanus IgG Value 53935-3

Secondary ID

36667

Forms

If not ordering electronically, complete, print, and send Infectious Disease Serology Test Request (T916) with the specimen.