Diphtheria Toxoid IgG (Blood)

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Testing Laboratory

Auckland Te Toka Tumai | Auckland Hospital

Department

Immunology

Delphic Registration Code (Alpha Code)

DITG

Test Code (Numeric Code)

7798

Laboratory Handling

Phlebotomy

Serum

Transport

Ambient (8 - 24 °C) within 48 hours; Chilled (4 - 8 °C) if longer than 48 hours

Registration

DITG

Laboratory

Labplus Infectious Serology

Sample Stability

Up to 48 hours: 8 - 24 °C; Up to 14 days: 4 - 8 °C; Up to 6 months: -30 °C; Indefinite at - 80 °C

Synonyms

Diphtheria antibodies
Diphtheria serology
Vaccine challenge response

Turnaround Time

3 weeks

Between 3 to 4 weeks

Specimen Type

  • Serum

Specimen Requirements

Tube/Container Type:

Preferred
  • SST II (Gold Cap)
Acceptable
  • Plain (Red Top)
Preferred Sample Volume (ml)

3.5

Minimum Sample Volume (ml)

1

No of Samples Required

1

Paediatric Specimen Requirements

Tube/Container Type:

Preferred
  • SST II (Gold Cap)
Acceptable
  • Plain(Microtainer)
  • SST(Microtainer)
Minimum Sample Volume (ml)

1

Pre-testing Requirements

Paired sera should be obtained wherever possible (pre and 4-8 weeks post vaccination).

Additional Specimen Information

Paediatric Specimen: 2 mL clotted blood or 1 mL serum

Last updated: 14/08/2026