TB Testing Near Me in California

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T-Spot I TB PPD Skin Test
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TB Testing Locations in All Cities & States

Tuberculosis (TB) Testing Made Simple and Reliable

Lab Testing USA offers extensive TB testing services across California and major urban centers, extending their reach to all 50 states and Puerto Rico. Our skilled team is committed to facilitating TB testing for purposes such as employment, education, or personal health. Tuberculosis (TB) is a contagious bacterial infection primarily impacting the lungs, with the potential to spread if untreated. Early detection is crucial for safeguarding health and minimizing spread. At Lab Testing USA, we simplify the TB testing process with speedy, convenient, and reliable services available nationwide, alongside same-day appointments and trusted certified laboratories. Whether it's a TB skin test (PPD) or a TB blood test (QuantiFERON-TB Gold or T-Spot) required for work, school, immigration, or personal purposes, our expert services guarantee reliable results without hassle. Reach out via our toll-free number at (800)441-2728 to identify the nearest TB testing site in California.

TB Testing Methods Available

TB PPD Skin Test

T-SPOT®TB Test

QuantiFERON Gold -TB Test

What is a TB PPD Skin Test

The TB skin test is a traditional and widely used screening method. A small amount of purified protein derivative (tuberculin) is injected under the skin on the forearm

How it Works in California

  • Donor receives donor pass and proceeds for initial tuberculin injection
  • This test requires the donor to follow-up visit within 48–72 hours to have the results read
  • A trained healthcare professional examines the site for a reaction, which indicates potential TB infection
Schedule Your TB Online

What is a TB Skin Test Used For?

  • Routine screenings for schools, workplaces, and healthcare settings in California
  • Those, in California, requiring a low-cost, reliable initial screening method

What is a QuantiFERON Gold TB Test

The QuantiFERON Gold TB blood test s a modern blood test offering fast, accurate results without the need for multiple appointments. The QuantiFERON Tb Test is (often abbreviated as QFT or QFT-Plus in its latest version)

Key Advantages in California:

  • Performed in one visit- no return appointment required
  • Not affected by prior BCG vaccination, which can cause false positives in skin tests.
  • No risk of subjective reading differences or human error
Schedule Your QuantiFERON Gold Online


What is a QuantiFERON TB Test Used For?

  • Screening for TB infection in California workplaces (e.g., healthcare, schools, government).
  • Pre-employment testing in California
  • California Immigration, travel, or school requirements.
  • When accuracy is especially important (e.g., individuals vaccinated with BCG).

What is an T-SPOT®.TB Test

The T-SPOT®.TB test is an advanced, laboratory-based blood test that detects the presence of T cells responding to Mycobacterium tuberculosis antigens. This method captures interferon gamma (IFN-γ) released by immune cells when exposed to TB proteins, providing a highly sensitive and specific result. FDA-approved and widely used for detecting latent TB infection and supporting active TB evaluation.

Key Benefits in California

  • Aids in the diagnosis of latent and active TB infection
  • Useful when skin test results are unclear or affected by prior BCG vaccination
  • Performed in a single visit with results reviewed by certified labs

Schedule Your T-SPOT®.TB Test Online

What is a T SPOT TB Test Used For?

  • California Employment & Occupational Screening: Healthcare workers, teachers, government employees, and others in safety-sensitive positions often need TB clearance.
  • California Immigration / Visa Requirements: Many countries accept the T-SPOT.TB as proof of TB screening.
  • California School & University Enrollment: Students (especially in medical or childcare fields) may be required to take it.
  • California Medical Evaluation: Doctors may order it for patients with risk factors, immune system concerns, or a history of TB exposure.
  • When BCG Vaccine Has Been Given: Unlike the TB skin test, the T-SPOT.TB is not affected by prior BCG vaccination, which helps avoid false positives.



What is Tuberculosis?

Tuberculosis (TB) is an infectious disease caused by bacteria that spread through the air from person to person. While TB most commonly affects the lungs, it can also impact other areas of the body, including the brain, kidneys, and spine. Without proper treatment, TB can become life-threatening.

There are two main states: latent TB infection (you have TB bacteria in your body but no symptoms, non-infectious) and active TB disease (you have symptoms, can spread it)

Testing helps identify who has been exposed or infected, even if they are not yet sick, so they can get treatment if needed and prevent spread.

What happens if the test is positive or negative?

  • Positive results for a skin or blood test means you have likely been infected with the TB bacteria. This does not tell you if it is an active infection. To check for active TB, doctors will often order a TB chest x-ray and sputum test 
  • Negative results means that no evidence (by that test result) of infection. Sometimes this isn't perfect, for example, a very recent infection might not yet be detected, or immune suppression might reduce response.

What are the side effects of risks of TB tests?

  • Very minimal
  • Skin test-mild pain, redness, swelling at the injection site
  • Blood test- pain or bruising at needle site. Rare allergic reaction possible

How often should I be tested for TB?

This will depend on a person's risk factor. People who work in healthcare, live in high TB burden settings or have certain medical conditions might need regular testing. For most people, they only need to be tested when there is an immediate risk or exposure.


TB Testing Near Me in California

Tuberculosis (TB) Testing Made Simple and Reliable

Searching for a "TB test near me"? At Lab Testing USA, we make tuberculosis testing simple, fast, and affordable. Whether you need a TB skin test (PPD/Mantoux) or a TB blood test (QuantiFERON-TB Gold or T-Spot), we have nationwide locations with same-day appointments available.

Lab Testing USA Offers

  • Fast Turnaround: Most results available within 24–48 hours.
  • Nationwide Coverage: Thousands of testing centers across the U.S.
  • No Doctor's Visit Needed: Order your test online, visit the lab, and get results securely.
  • Affordable Pricing: Transparent rates with no hidden fees.

Whether for employment, school, healthcare clearance, or personal peace of mind, Lab Testing USA is your trusted partner for convenient TB testing anywhere in the United States.

Compare TB Tests: Skin Test vs. QuantiFERON-TB Gold vs. T-SPOT.TB

Choose the right test for employment, school, immigration, or routine screening. Nationwide labs, same-day appointments, fast results.

TB Skin Test (TST/PPD)

Two-step process with a return visit in 48–72 hours for reading.

  • Low cost, widely accepted
  • Requires return visit
  • BCG vaccine may cause false positives
Schedule TB Skin Test

QuantiFERON-TB Gold (IGRA)

Single-visit blood test; lab measures interferon-gamma release.

  • No return visit required
  • Unaffected by BCG vaccination
  • Lab-based; rapid turnaround
Schedule QuantiFERON

T-SPOT.TB (IGRA)

Single-visit blood test; counts TB-specific T-cell “spots.”

  • No return visit required
  • Unaffected by BCG vaccination
  • Useful when QFT is indeterminate
Schedule T-SPOT.TB

Lab Testing USA has 536 drug testing locations in 1,932 CA cities.

Please select a city from the list below to find drug test centers in California.

Frequently asked questions about TB Testing

1. What types of TB tests are available in California?

Answer: In California, you can access various TB tests including the TB skin test (PPD) and TB blood tests like QuantiFERON-TB Gold and T-Spot.

2. How can I schedule a TB test in California?

Answer: You can schedule a TB test in California by calling our toll-free number or visiting our website for same-day appointments at a location near you.

3. What is the cost of a TB test in California?

Answer: The cost of a TB test in California varies depending on the type of test and the testing facility. Contact your nearest testing center for specific pricing.

4. Are TB tests covered by insurance in California?

Answer: Many insurance plans in California do cover TB tests, but it's recommended to verify coverage details with your provider beforehand.

5. Why is TB testing important for employment in California?

Answer: TB testing is often required in California for employment, especially in healthcare and education sectors, to prevent the spread of tuberculosis in workplaces.

6. How quickly will I receive my TB test results in California?

Answer: Typically, TB skin test results can be read within 48-72 hours, while blood test results may take a few days.

7. What should I do if my TB test in California is positive?

Answer: If your TB test in California is positive, follow up with a healthcare provider for further evaluation and potential treatment.

8. Where can I get a TB test for immigration purposes in California?

Answer: TB tests for immigration purposes are available at various locations across California. Contact us to find a convenient testing site for your needs.


TB Testing in California

California, with its diverse population of over 39 million people, is a key focus for tuberculosis control efforts. The state has a mix of urban and rural areas, requiring adaptable strategies to manage and prevent TB outbreaks.

In 2022, California recorded approximately 2,000 new cases of tuberculosis, maintaining one of the higher case rates compared to other states in the US. Factors like population density and immigration contribute to this number.

Los Angeles County often sees the highest number of TB cases in California, emphasizing the need for accessible testing and treatment services in metropolitan hubs.

Diverse demographic groups in California, including a significant foreign-born population, can increase the complexity of TB cases, necessitating culturally competent healthcare strategies.

Public health efforts in California focus on early detection and treatment of TB, as well as improving access to preventive therapy for individuals at high risk of developing active TB.

California's Department of Public Health collaborates with local health authorities to monitor and address TB outbreaks, ensuring that interventions are tailored to regional needs.

(800) 441-2728