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Tetanus and Diphtheria Titer Test

Order online, visit a nearby lab, and get private results online. No doctor's visit or insurance needed.

  • 4,500+ CLIA-certified labsNo appointment needed for most tests
  • Physician-orderedNo doctor’s visit or referral needed
  • Secure and confidentialNot billed to insurance
  • Most results in 1–3 daysIn your secure online account
  • HSA/FSA cards acceptedItemized receipt available

Price $149 Compare at $298

You save $149 · 50% off

110% price guarantee · No hidden fees

How to prepare No fasting needed

About this test

The Tetanus and Diphtheria Immunity Titer Test is a blood test that measures your antibody levels to determine whether you are protected against tetanus and diphtheria. These antibodies develop after vaccination and help your immune system recognize and defend against future exposure.

Tetanus, often called lockjaw, is caused by bacteria that enter the body through cuts, wounds, or punctures in the skin. Once inside, the bacteria produce toxins that affect the nervous system, leading to painful muscle stiffness and spasms that can become life threatening if untreated. Even minor injuries can pose a risk if immunity has weakened.

Diphtheria is a contagious bacterial infection that primarily affects the nose and throat. It spreads through respiratory droplets from coughing or sneezing. In severe cases, diphtheria can create a thick coating in the throat that interferes with breathing and may cause serious complications.

Immunity to tetanus and diphtheria is highly effective after vaccination, but protection can decrease over time. This test confirms whether your antibody levels remain protective or whether a booster may be recommended to maintain immunity.


What Is Included In This Test?

This test measures:

  • Tetanus IgG antibody levels
  • Diphtheria IgG antibody levels

Results indicate whether your immune system has protective antibody levels from prior vaccination.


Why Does This Test Matter?

Tetanus and diphtheria are serious infections that can cause severe complications, including breathing difficulties, nerve damage, and in some cases death. While vaccination has made these diseases rare, exposure remains possible.

Because immunity can decrease over time, especially if boosters are delayed, confirming your protection is important for long term health and safety.

Many schools, employers, healthcare facilities, and travel programs require documented proof of immunity. This test provides clear laboratory confirmation of your immune status.

Knowing your antibody levels helps you take proactive steps to stay protected and avoid preventable illness.


Who Should Consider This Test?

You should consider this test if you:

  • Are unsure of your tetanus or diphtheria vaccination history
  • Need documented proof of immunity for work, school, or travel
  • Work in healthcare, emergency response, or childcare
  • Have experienced a wound and are unsure of your immune status
  • Have not received a booster in the past ten years
  • Want confirmation that your previous vaccination is still protective

Convenient, No-Appointment Testing

To complete your test:

  1. Order online through our website
  2. Use the lab locator to find a nearby testing location
  3. Walk in; no appointment required
  4. Access your results securely in your HealthLabs.com account within one to three business days

110% Price Guarantee!

If you find the same test for a lower price from a comparable provider, contact us. We not only match the price, we beat it by an additional 10 percent of the difference.


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From order to results

No doctor's visit, no appointment and no insurance paperwork.

  1. TodayOrder online No doctor’s referral or insurance needed. Our physicians provide the lab order.
  2. Same dayWalk in to a nearby lab 4,500+ CLIA-certified U.S. labs. No appointment needed.
  3. 1–3 daysGet your results Most results post to your secure account within 1–3 business days.
  4. NextTake them further Download them to share with your doctor, or text Patient Services with questions.

HealthLabs.com vs. going through your doctor

FeatureHealthLabs.comThrough your doctor
Referral neededNo, our physicians provide the orderUsually requires a visit first
AppointmentWalk in for most testsBook, then wait for a visit
InsuranceNot neededCo-pays and deductibles may apply
Price known upfrontYes, listed next to every testOften not until you're billed
Choose your own testsYes, from our full test menuYour doctor decides
Getting resultsOnline, most in 1–3 business daysOften shared at a follow-up

Questions? We're here to help.

Call or text 1 (800) 579-3914.

Does this test diagnose an active infection?

No, it determines immunity status and does not diagnose current infection.

What does a positive result mean?

A positive result indicates protective antibody levels and immunity.

Will anyone see my results besides me?

Your results are stored in your secure online account. They are not shared with anyone else. If you choose, you can print or download them to share with your own doctor.

Do I need to fast before this test?

Fasting is not required for this panel. You can eat and drink normally unless your doctor has given you other instructions.

Can I talk to someone about my results?

Yes. If your results come back abnormal or if you simply have questions, our team is here to support you. You can text our Patient Services team at 1800-579-3914.

Can I use insurance to pay for this test?

In order to ensure your privacy, we do not bill insurance directly, but you may use HSA or FSA funds. This keeps your results and testing completely private from insurers. We can also provide you with an itemized receipt for insurance reimbursement purposes if you need it.

What type of sample is required for this test?

This test requires a simple blood draw. No urine samples, swabs, or physical exams are involved.

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Medically reviewed by Julie Hutchinson, MD (opens in a new tab) · Reviewed Feb 13, 2026 · Written by HealthLabs Editorial Team (opens in a new tab)

Tetanus and Diphtheria Titer Test

No doctor's visit needed · HSA/FSA cards accepted · 110% price guarantee

Price $149 Compare at $298 You save $149 · 50% off

Tetanus and Diphtheria Titer TestPrice $149 Compare at $298 50% off