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Test Code LAB792 Diphtheria/Tetanus Antibody Panel, Serum

Important Note

Mayo's test code: DTABS

Useful For

Assessing antibody response to tetanus and diphtheria toxoid vaccines, 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

Profile Information

Test ID Reporting Name Available Separately Always Performed
DIPGS Diphtheria Toxoid IgG Ab, S Yes Yes
TTIGS Tetanus Toxoid IgG Ab, S Yes Yes

Reporting Name

Diphtheria/Tetanus Ab Panel, S

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: 1 mL Serum

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


Specimen Minimum Volume

Serum: 0.5 mL

Specimen Stability Information

Specimen Type Temperature Time
Serum Refrigerated (preferred) 30 days
  Frozen  30 days

Reject Due To

Gross hemolysis Reject
Gross lipemia Reject
Gross icterus Reject
Heat-inactivated specimen Reject

Reference Values

DIPHTHERIA TOXOID IgG ANTIBODY

Vaccinated: Positive (≥0.01 IU/mL)

Unvaccinated: Negative (<0.01 IU/mL)

Reference values apply to all ages.

 

TETANUS TOXOID IgG ANTIBODY

Vaccinated: Positive (≥0.01 IU/mL)

Unvaccinated: Negative (<0.01 IU/mL)

Reference values apply to all ages.

Supportive Data

Diphtheria:

A total of 211 serum samples prospectively submitted to our reference laboratory for routine testing for antidiphtheria toxoid IgG antibodies by the Binding Site Anti-Diphtheria Toxoid IgG enzyme-linked immunosorbent assay (ELISA) were also evaluated by the EuroImmun Anti-Diphtheria Toxoid IgG ELISA and results are summarized in Table 1.

 

Table 1. Comparison of the EuroImmun and Binding Site Anti-Diphtheria Toxoid IgG ELISAs

 

Binding Site IgG ELISA

 

Positive

Negative

Total

EuroImmun IgG ELISA

Positive

206

0

206

Negative

4(a)

1

5

 

Total

210

1

2011

a) 1 of 4 samples tested positive by the ARUP Quantitative Multiplex Bead assay for antidiphtheria toxoid IgG

% Positive Agreement: 98.1% (206/210); 95% CI: 95.0-99.4%

% Negative Agreement: 100% (1/1); 95% CI: 16.8-100%

% Overall Agreement: 98.1% (207/211); 95% CI: 95.1-99.4%

 

Tetanus:

A total of 227 serum samples prospectively submitted to our laboratory for routine antitetanus toxoid IgG testing by the Binding Site Anti-Tetanus Toxoid IgG ELISA were also evaluated by the EuroImmun Anti-Tetanus Toxoid IgG ELISA. Results are summarized in Table 2:

 

Table 2. Comparison of the EuroImmun and Binding Site Anti-Tetanus Toxoid IgG ELISAs

 

Binding Site IgG ELISA

 

Positive

Negative

Total

EuroImmun IgG ELISA

Positive

220

0

220

Negative

6(a)

1

7

 

Total

226

1

227

a) 3 of the 6 samples tested positive by the anti-Tetanus Toxoid IgG Quantitative Multiplex Bead Assay at ARUP

% Positive Agreement: 97.4% (220/226); 95% CI: 94.2-98.9%

% Negative Agreement: 100% (1/1); 95% CI: 16.8-100%

% Overall Agreement: 97.4% (221/227); 95% CI: 94.2-98.9%

Method Description

The anti-diphtheria toxoid enzyme-linked immunosorbent assay (ELISA) and anti-tetanus toxoid ELISA provide quantitative in vitro assays for detection of human IgG-class antibodies to diphtheria and tetanus toxoid, respectively.

 

The test kits contain reagent wells coated with either diphtheria or 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 antihuman 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 x 2

LOINC Code Information

Test ID Test Order Name Order LOINC Value
DTABS Diphtheria/Tetanus Ab Panel, S 101791-2

 

Result ID Test Result Name Result LOINC Value
TETG Tetanus IgG Ab 26643-7
DIPG Diphtheria IgG Ab 45166-6
DEXDP Diphtheria IgG Value 48654-8
DEXTG Tetanus IgG Value 53935-3

Forms

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