Mantoux Test

Mantoux Test, also known as the Tuberculin Skin Test (TST), is a medical test used to determine whether an individual has been exposed to the bacterium that causes tuberculosis (TB). The test involves injecting a small amount of purified protein derivative (PPD) into the skin of the forearm and observing the reaction after 48-72 hours. A positive result indicates exposure to TB bacteria, but does not necessarily mean the person has an active TB infection.

To perform the Mantoux Test, a healthcare professional cleans the forearm with alcohol and injects a small amount of PPD just beneath the skin using a small needle. The injection site is then marked and the person is instructed to return for evaluation within 48-72 hours. During evaluation, the healthcare professional examines the site for swelling and redness, and measures the size of any reaction. A reaction of a certain size is considered positive, indicating the presence of TB infection. In some cases, further testing such as a chest X-ray or sputum culture may be required to confirm an active TB infection.

In conclusion, the Mantoux Test is an important diagnostic tool in the detection of TB infection. While the test is relatively simple and low-risk, it should only be performed by trained healthcare professionals. A positive test result should be followed up with additional testing to confirm whether an individual has an active TB infection, which can then be treated with antibiotics. By identifying and treating TB infections early, individuals can avoid serious complications and help prevent the spread of the disease to others.