Which diagnostic assessment is recommended for new employees to screen for tuberculosis?

The Mantoux test, also known as the tuberculin skin test, is the recommended diagnostic assessment for screening new employees for tuberculosis. This test involves the intradermal injection of a small amount of purified protein derivative (PPD) and measuring the induration after 48-72 hours. It is a reliable method to determine if someone has been exposed to the tuberculosis bacteria, helping to identify cases of latent TB infection.

While options like chest X-rays and blood tests (e.g., interferon-gamma release assays) can also be used to diagnose tuberculosis, the Mantoux test is specifically recommended for initial screening processes, especially for healthcare workers and in environments where active TB may be a concern. A urine test is not used for tuberculosis screening, making it an unsuitable choice in this scenario. The Mantoux test remains a cornerstone in TB screening protocols due to its ease of administration and effectiveness in identifying those at risk.