What happens if the tuberculosis skin test gets wet?
Jan 02, 2024
Source: Cainiu Health
Dr. Li Jingli
Introduction
Under normal circumstances, the tuberculosis skin test, also known as the tuberculin test, may have its results affected if the injection site comes into contact with water. The tuberculin test is an intradermal test method that involves injecting tuberculin into the skin and then evaluating the skin reaction at the injection site to determine whether a person is infected with Mycobacterium tuberculosis. For the tuberculosis skin test, tuberculin is typically injected into the skin on the forearm of the individual being tested.
Generally, the tuberculosis skin test, also known as the tuberculin test, may yield inaccurate results if the test site comes into contact with water. The details are as follows:
The tuberculin test is an intradermal testing method that involves injecting tuberculin under the skin and evaluating whether infection with Mycobacterium tuberculosis is present based on the skin reaction at the injection site. For a pulmonary tuberculosis skin test, tuberculin is typically applied to the skin of the subject's forearm, and the injection site is observed for reactions such as redness or induration. If the test site accidentally gets wet during the testing period, it may interfere with the results and lead to inaccuracies. It is recommended to repeat the tuberculosis skin test. If the result remains positive after re-administering the tuberculin, this may indicate infection with Mycobacterium tuberculosis, and medical attention should be sought promptly for further evaluation and treatment.
If patients experience any discomfort, they should promptly visit a正规 hospital for examination and treatment to avoid delays in diagnosis and care.
