Tetanus & Diphtheria IgG Immunity Test
Tetanus & Diphtheria IgG Immunity Test is a laboratory test you can order directly. The Tetanus & Diphtheria IgG Immunity Test measures antibodies in your blood to see if you are protected against tetanus and diphtheria. It is often ordered to check immunity after vaccination or when a booster is due.
- Sample type
- blood
- Category
- General Wellness
- Turnaround
- 1-3 business days
- Price
- $149
- Referral
- Not required
The Tetanus & Diphtheria IgG Immunity Test measures antibodies in your blood to see if you are protected against tetanus and diphtheria. It is often ordered to check immunity after vaccination or when a booster is due.
What it measures
- Tetanus IgG antibody — Shows if you have protective antibodies against tetanus.
- Diphtheria IgG antibody — Shows if you have protective antibodies against diphtheria.
Who it is for
This test may be ordered by a clinician for people who are unsure about their vaccination history, before certain medical procedures, or as part of a general wellness check.
Preparation
No fasting or special preparation is needed. You can eat and drink normally before the blood draw.
Results and what they mean
Results are usually reported as protective or non-protective based on antibody levels. A clinician interprets these results in the context of your health and vaccination history. This information is not medical advice; discuss your results with a healthcare provider.
How to order this test
- Choose the test and place a confidential order online.
- Select a certified collection site and pick a time that suits you.
- Have your specimen collected — most draws take only a few minutes.
- Review results in a secure portal, typically within 1–3 days.
Preparation, hours, and pricing vary by site; confirm details directly with the lab before your visit.
Availability by state
Direct-access online ordering for the tetanus & diphtheria igg immunity test is available in most states. It is currently unavailable in 6 states:
Everywhere else you can order confidentially and collect your sample at a certified site. Browse by state →
Frequently asked questions
Do I need to fast for this test?
No, fasting is not required. You can eat and drink as usual before your blood draw.
What does a protective result mean?
It means you likely have enough antibodies to fight off tetanus or diphtheria. A non-protective result may mean you need a booster shot.
How long does it take to get results?
Results are typically available within 1 to 3 business days.
Can I get this test without a doctor's order?
In many states, you can order this test yourself. Check with the lab for specific requirements.