The Mantoux tuberculin skin test (TST) is one method of determining whether a person is infected with Mycobacterium tuberculosis. Reliable administration and reading of the TST requires standardization of procedures, training, supervision, and practice. How is the TST Administered? Jun 04, · The mantoux test is an important test for determining TB infection, but this test alone cannot confirm an active TB infection. The result of the Mantoux test is considered in conjunction with other tests such as chest X-ray and sputum cytology.
This is when the TB bacteria importantt in the body but the person is not experiencing any symptoms suggestive of TB disease. It is not used to test for TB disease.
A TST involves a small injection of tuberculin or purified protein derivative — PPD into wh skin, usually on the forearm. After hours the injection site is assessed for any reaction lump. If a lump develops it will disappear within days without any treatment. Latent TB infection is when a person has the TB bacteria in their body whah the immune system is stopping the infection from causing disease.
Latent TB infection causes no symptoms and cannot be passed on to other people. There is a small risk that latent TB infection can progress to TB disease. The risk is increased in young children and old people, as well as people with weak immune systems. Latent TB infection can be treated with special antibiotics to prevent it from progressing to TB disease in the future. Your nurse or doctor will explain the advantages and disadvantages of the different tests and advise which is more suitable for your situation.
After the TST you must return to the clinic hours later so that any reaction can be assessed and recorded. Your nurse or doctor will explain why further what size receiver hitch do i need may be needed. You may be trying to access this site from a secured browser on the server. Please enable scripts and reload this page. Last updated: 17 January How is it performed? Before you have a TST It is important to let the nurse or doctor know if you: Have any immune-suppressing illness such as HIV, lymphoma, or kidney disease Take medication that affects your immune system such as steroids e.
Current as at: Tuesday 17 January Contact page owner: Communicable Diseases.
How Does The Mantoux Test Work?
Aug 16, · What is Mantoux test? Mantoux test, also known as the tuberculin skin test, is used to check if an individual has been affected by tuberculosis (TB). TB is a deadly disease affecting mainly the people in developing countries. The disease persists in the body in various forms, such as. Mantoux is not a vaccine, as many believe. It’s a test or a test that indicates whether the body is active TB infection. During the execution of the Mantoux test, the doctor inserts under the skin to tuberculin – an extract of Mycobacterium tuberculosis. It turns out that the “button” that children are strictly forbidden to . Feb 14, · A Mantoux test is a skin test used to test someone for signs of exposure to Mycobacterium tuberculosis, the bacterium that causes tuberculosis infection. This type of test may be ordered in a wide variety of circumstances, from a routine physical to a medical examination performed as part of the requirements for a job.
A Mantoux test is a skin test used to test someone for signs of exposure to Mycobacterium tuberculosis , the bacterium that causes tuberculosis infection. This type of test may be ordered in a wide variety of circumstances, from a routine physical to a medical examination performed as part of the requirements for a job. Because tuberculosis is highly infectious, people who seek employment in schools and government agencies are often asked to get tested as a term of employment. In this test, a medical professional injects a small amount of protein from the tuberculosis bacterium under the skin of the arm.
This substance is known as tuberculin or purified protein derivative PPD. It cannot cause tuberculosis, but it will spur the immune system to react, causing an area of raised skin to appear at the injection site if someone has been exposed to or infected with tuberculosis. After the injection, the patient is sent home for two to three days. He or she must return to a medical professional's office to have the test read. In a negative test, little to no swelling has occurred.
Positive tests cause the appearance of a raised disc, which can be between about 0. If someone has a compromised immune system , the smaller reading is considered positive. In individuals with risk factors for tuberculosis exposure, the raised skin should measure at least 0. It is possible to get a false negative on a Mantoux test, in the case of someone who was exposed lightly, or infected and treated more than 15 years prior to the test.
People who have been infected and treated may experience false positives, in which the test makes it look like the patient is actively infected, but he or she cannot pass the bacterium on to others because it is not present.
In these cases, additional diagnostic tests can be used to confirm that the patient is free of the bacterium. If a Mantoux test is positive, the patient will be advised to seek medical advice from a healthcare professional who can perform additional diagnostic tests and offer treatment recommendations.
Generally, these tests will include X-rays to check on lung function. If the patient does indeed have an active tuberculosis infection, antibiotic medications can be provided to kill the bacteria in the body.
A person with a positive test may be barred from employment in certain types of jobs until he or she can provide documentation indicating freedom from tuberculosis. Ever since she began contributing to the site several years ago, Mary has embraced the exciting challenge of being a wiseGEEK researcher and writer.
Mary has a liberal arts degree from Goddard College and spends her free time reading, cooking, and exploring the great outdoors. Please enter the following code:. Login: Forgot password?