How far apart does a 2 Step TB test have to be?

If you have never had any TB skin testing, the two-step TST is done as follows: The first test is placed, and results are read in 48-72 hrs. The second test is placed at least 7 days after the reading of the first test, and read at 48-72 hrs.

How long is a skin TB test good for?

A TB Skin Test is needed for at time of hire and then every four years thereafter. If a chest x-ray report is submitted for clearance, it is needed for hire and then every four years thereafter.

When do you give 2nd step PPD?

The 2-Step TST is recommended for initial skin testing of adults who will be periodically retested, such as healthcare workers. A 2 step is defined as two TST’s done within 3 months of each other. The optimal time for testing would be to complete the 2 TST’s within 1-4 weeks of each other.

How long do you wait between TB skin tests?

The skin test reaction should be read between 48 and 72 hours after administration. If the test is not read within 72 hours, another TST should be placed unless the amount of induration is ≥ 10 mm within 7 days after placement.

Do I need a 1 step or 2 Step TB test?

A two-step test is required. If the TST was done in the past 12 months, only a one-step test is required. If the result is positive, refer to *Person with a positive TST. If both tests are negative, only a one-step test is required.

Are TB tests done annually?

Annual Screening, Testing, and Education Annual TB testing of health care personnel is not recommended unless there is a known exposure or ongoing transmission at a healthcare facility. Health care personnel with untreated latent TB infection should receive an annual TB symptom screen.

How do you do a tuberculin skin test?

The TB skin test is performed by injecting a small amount of fluid (called tuberculin) into the skin on the lower part of the arm. A person given the tuberculin skin test must return within 48 to 72 hours to have a trained health care worker look for a reaction on the arm.

Who needs 2 step PPD?

In summary, 2-step PPD testing requires 2 PPD’s to be placed, 1-3 weeks apart, with each of those tests read 48-72 hours after placement. Who should have 2-step PPD testing? Those who: 1) have never been tested 2) have no documentation of prior testing, or 3) tested negative over 12 months ago.

Does OSHA have TB regulations?

Response: OSHA has no specific standard for tuberculosis (TB). OSHA protects workers from TB by enforcing the provisions set by Section 5(a)(l) of the Occupational Safety and Health (OSH) Act, the general duty clause.

Is a TB test good for two years?

California State law requires that current tuberculosis (TB) clearance test results are on file and must be renewed every four years.