You can refuse a TB test for a job, but whether you keep the offer depends entirely on the reason. If you have a medical condition or a sincerely held religious belief that conflicts with the test, federal law protects you and requires the employer to consider a reasonable alternative. Refuse for any other reason, and the employer can withdraw the offer.
When an Employer Can Require the Test in the First Place
Under the Americans with Disabilities Act, employers cannot demand a medical exam or ask about health before making a job offer.1Office of the Law Revision Counsel. 42 USC 12112 – Discrimination Once a conditional offer is on the table, the rules flip. The employer can require a medical exam and condition the offer on the result, as long as every new hire in the same job category faces the same requirement.2U.S. Equal Employment Opportunity Commission. Enforcement Guidance on Disability-Related Inquiries and Medical Examinations of Employees under the ADA At this stage, the exam does not have to be job-related.
TB screening tends to show up in specific fields. The CDC recommends screening for all healthcare personnel at hire, which covers hospitals, outpatient clinics, laboratories, long-term care, EMS, and home-based care.3Centers for Disease Control and Prevention. Clinical Testing Guidance for Tuberculosis: Health Care Personnel State law or employer policy frequently extends the requirement to schools, childcare, correctional facilities, and, in some states, food handlers.4Occupational Safety and Health Administration. Tuberculosis – Overview If you are entering one of these fields, expect the screening as part of onboarding.
Reasons You Can Refuse and Keep the Offer
Federal law recognizes a short list of grounds. Personal preference is not on it.
A Medical Condition
If a documented condition makes the standard tuberculin skin test unsafe for you, the ADA lets you decline it. A severe allergic reaction to the testing solution (purified protein derivative) is the classic example. You are not refusing to be screened; you are refusing one specific method, and that triggers your right to an alternative.
A Prior Positive Result
If you have already tested positive for TB, repeating a skin test is medically unnecessary and can cause a severe skin reaction. The CDC’s guidance for healthcare settings tells employers to give personnel with a documented prior positive result a risk assessment and symptom screening rather than another skin test.5Centers for Disease Control and Prevention. Baseline Tuberculosis Screening and Testing for Health Care Personnel The standard substitute is a chest X-ray or documentation of a previous normal one. Bring your prior records to the appointment.
A Sincerely Held Religious Belief
Title VII of the Civil Rights Act protects applicants whose sincerely held religious beliefs conflict with a medical procedure like a TB test. The EEOC reads “religion” broadly: it covers beliefs that are new, uncommon, or not tied to any organized church, as long as they function as religion in your own life.6U.S. Equal Employment Opportunity Commission. Section 12: Religious Discrimination A general philosophical objection to medical testing does not qualify. The belief has to be religious and genuinely held.
Pregnancy
Pregnancy is not by itself a reason to skip screening, but it can change which test is appropriate. IGRA blood tests are considered safe during pregnancy, though the CDC notes they have not been fully evaluated for diagnosing latent TB in pregnant patients.7Centers for Disease Control and Prevention. Testing for Tuberculosis: Blood Test Mention pregnancy early so the employer routes you to the right test rather than a chest X-ray.
If You Refuse Without a Protected Reason
The employer can withdraw the conditional offer. At-will employment gives employers wide latitude, and failing to complete a required screening is treated the same as failing any other condition of the offer. There is no legal remedy in that situation.
If You Refuse for a Protected Reason
Your refusal starts what the EEOC calls the interactive process: a back-and-forth conversation to find a reasonable alternative that meets the screening requirement without violating your rights.8U.S. Equal Employment Opportunity Commission. Enforcement Guidance on Reasonable Accommodation and Undue Hardship under the ADA Pulling the offer instead of engaging in that process would likely be disability or religious discrimination.
The employer can deny the accommodation only if granting it would cause an undue hardship. Under the ADA, that means significant difficulty or expense. Under Title VII, the Supreme Court held in 2023 that an employer must show the accommodation would cause “substantial increased costs in relation to the conduct of its particular business.”9Supreme Court of the United States. Groff v. DeJoy (06/29/2023) Swapping a skin test for a blood test is a small change and almost never clears that bar.
How to Ask for an Alternative
Put the request in writing. State that you cannot take the standard TB test and give the basis: a medical condition, a prior positive result, or a religious belief. You do not have to cite the ADA or Title VII by name. A clear written statement puts the employer on notice and starts the interactive process.
The employer can ask for reasonable documentation. For a medical issue, that usually means a doctor’s note explaining why the skin test is contraindicated. For a religious objection, the employer should generally accept your stated belief as sincere and can ask follow-up questions only if it has a genuine, objective reason to doubt sincerity; it should not assume insincerity just because your practices differ from mainstream tenets of your faith.6U.S. Equal Employment Opportunity Commission. Section 12: Religious Discrimination If the employer sends you to a health professional of its own choosing to document the need for an accommodation, the employer pays for that visit.8U.S. Equal Employment Opportunity Commission. Enforcement Guidance on Reasonable Accommodation and Undue Hardship under the ADA
The alternatives employers most commonly accept:
- An IGRA blood test. One blood draw, results in a day or two, no return visit.
- A chest X-ray, often used when there is a prior positive result or when other tests are contraindicated.
- Symptom screening and a risk assessment, usually paired with the options above for someone with a documented prior positive.5Centers for Disease Control and Prevention. Baseline Tuberculosis Screening and Testing for Health Care Personnel
What a Positive Result Would Actually Mean
Applicants often refuse the test because they are worried about the result. A positive TB test does not mean you have active, contagious tuberculosis. In most cases it means latent TB infection: the bacteria are present but dormant. You are not sick, not contagious, and cannot pass it to coworkers or patients.
The ADA treats TB as a disability, so an employer cannot pull the offer simply because you tested positive. It can act only if you pose a “direct threat,” meaning a significant risk of substantial harm that cannot be reduced through reasonable accommodation, and that assessment has to be individualized and based on current medical evidence.2U.S. Equal Employment Opportunity Commission. Enforcement Guidance on Disability-Related Inquiries and Medical Examinations of Employees under the ADA Latent TB almost never meets that standard. Active, untreated TB in a close-contact setting is a different question, but even there the employer must evaluate the specific situation instead of applying a blanket ban. In practice, a positive screening usually leads to a follow-up chest X-ray, and a normal X-ray clears the way to start work.
Who Pays, and Who Sees the Result
Cost depends on timing. Under the Fair Labor Standards Act, if there is no employer-employee relationship yet at the time of the exam, the employer is not required to pay for it.10Department of Labor. FLSA Opinion Letter FLSA-648 That covers most pre-employment physicals. If the test happens after you have started, time spent getting medical attention at the employer’s direction during working hours counts as hours worked.11U.S. Department of Labor. FLSA Hours Worked Advisor – Medical Examinations Some states require employers to cover mandatory pre-employment medical exams outright, so check your state law. A skin test typically runs $40 to $75, and an IGRA blood test runs $100 to $350; the difference rarely reaches undue hardship for any reasonably sized employer.
Your test result is a confidential medical record. The ADA requires employers to keep medical information in files separate from ordinary personnel records.1Office of the Law Revision Counsel. 42 USC 12112 – Discrimination Access is limited to supervisors who need to know about a restriction or accommodation, first aid and safety personnel if your condition might require emergency treatment, and government officials investigating ADA compliance.2U.S. Equal Employment Opportunity Commission. Enforcement Guidance on Disability-Related Inquiries and Medical Examinations of Employees under the ADA Broadcasting your result around the office or filing it with your ordinary HR paperwork is a violation, whether the result is positive or negative.