Midwest · Tetanus & Diphtheria IgG Immunity Test – Titer Testing
Tetanus & Diphtheria IgG Immunity Test – Titer Testing in Michigan
Tetanus & Diphtheria IgG Immunity Test – Titer Testing is a laboratory test you can request directly. This blood test checks for antibodies that indicate immunity to tetanus and diphtheria, two serious bacterial infections. It helps determine whether vaccination or a booster may be needed.
Lab requirements in Michigan
Here is what you need before ordering and completing the Tetanus & Diphtheria IgG Immunity Test – Titer Testing in MI. Review each item and confirm the details with the collection lab.
- Physician's order
- Included. A physician's order is required for lab testing and is provided for you by our partner's physicians — no referral from your own doctor is needed.
- Fasting
- Fasting is required for this test — follow the collection lab's instructions.
- Preparation
- No special preparation is typically required, but follow the collection lab's instructions. They will tell you if any fasting or other steps are needed.
- Sample & visit
- A blood and/or urine sample is collected; the visit usually takes about 10 minutes.
- Identification
- Bring the lab requisition form from your account. The collection lab may also ask for a government-issued photo ID.
- Turnaround
- 1-3 business days
- Availability
- Our partner lab does not serve ND, RI, NY, NJ, MD or HI. Confirm availability for your location with the collection lab.
Before you go
- Order your test before visiting a lab, then use the requisition form in your account.
- Print the requisition form, or fax it to the lab directly from your account.
- No scheduling is needed — visit the collection lab during its normal business hours.
- A blood and/or urine sample is collected; the visit usually takes about 10 minutes.
- Bring a government-issued photo ID in case the lab requests it.
- Results are posted to your secure account within 1–3 business days.
Requirements are summarized from our partner lab's published policies. Preparation and availability can change — confirm current instructions with the collection lab before your visit.
What this test is
The Tetanus & Diphtheria IgG Immunity Test measures the level of IgG antibodies against tetanus and diphtheria toxins in the blood. These antibodies are produced after vaccination or natural infection and are used to assess immune protection. The test is often called a titer test.
What it measures
- Tetanus IgG antibodies — Reflects immune protection against tetanus toxin
- Diphtheria IgG antibodies — Reflects immune protection against diphtheria toxin
What the test involves
A healthcare professional collects a small sample of blood, usually from a vein in your arm. The sample is then sent to a laboratory for analysis.
Why it is often ordered
A clinician may order this test to check if you have adequate immunity after vaccination or to guide decisions about booster shots. It can also be used when there is uncertainty about vaccination history or for certain medical conditions.
Preparation
No special preparation is typically required, but follow the collection lab's instructions. They will tell you if any fasting or other steps are needed.
How results are reported
Results are reported as antibody levels, often with a qualitative interpretation such as protective or non-protective. Reference ranges vary by laboratory, so your results should be interpreted in the context of the lab's specific ranges.
Before you go
- Whether any special preparation is needed before the blood draw
- The expected turnaround time for results
- How results will be shared with you and your clinician
Cities
Tetanus & Diphtheria IgG Immunity Test – Titer Testing in Michigan communities
Choose your city for local context and to order this test.