Understanding TB Tests for Employment in 2023
What is a TB Test?
A tuberculosis (TB) test is a medical procedure used to diagnose a TB infection. TB tests are commonly used to screen people for TB infection before they start a new job or enter a healthcare or educational facility. The TB test is an important tool for preventing the spread of TB, which is a contagious, airborne disease that can cause serious illness.
What Types of TB Tests Are Used for Employment Purposes?
There are two types of TB tests typically used for employment purposes: the tuberculin skin test (TST) and the interferon-gamma release assay (IGRA). The TST is the most common type of TB test used for employment screening. It involves injecting a small amount of purified protein derivative (PPD) under the skin of the forearm. After 72 hours, a healthcare provider will examine the site and measure the amount of swelling to determine if there has been a reaction to the PPD, which would indicate a potential TB infection.
When Should a TB Test Be Conducted?
TB tests should be conducted at least once a year for employees in certain industries, such as healthcare, education, and childcare. It's also recommended that people who have had close contact with someone with TB, or who have recently traveled to an area with high TB incidence, receive a TB test. In some cases, employers may require a TB test prior to starting a new job.
Are TB Tests Accurate?
TB tests are generally very accurate and reliable when conducted properly. However, there are some false positive and false negative results. A false positive result occurs when the test indicates a TB infection when there is none. A false negative result occurs when the test does not detect a TB infection even though the person is infected. To reduce the possibility of false positive and false negative results, it is important to follow the instructions for administering the test carefully.
What Are the Potential Risks of a TB Test?
The TB test is generally safe, but it can cause some mild side effects, such as redness and swelling at the injection site. Rarely, the TB test can cause an allergic reaction or an infection. It is important to follow the instructions for administering the test carefully to reduce the risk of any potential complications.
What Should You Do If You Test Positive for TB?
If you test positive for TB, it is important to seek medical care right away. You may need to undergo further testing and treatment to diagnose and manage the infection. It is also important to tell your employer and any other people who may have been in close contact with you about your positive TB test result.
Conclusion
TB tests are an important tool for preventing the spread of TB, a contagious and potentially serious illness. TB tests are commonly used for employment screening and should be conducted at least once a year for certain industries, such as healthcare, education, and childcare. It is important to follow the instructions for administering the test carefully and to seek medical care if you test positive for TB.