Tine test

Tine test is a multiple-puncture tuberculin skin test used to aid in the medical diagnosis of tuberculosis (TB). The tine test is named after the tines, or prongs, that are used to administer the test.

History

The tine test was developed in the 1950s as an alternative to the Mantoux test, which requires a single puncture with a needle and the injection of tuberculin. The tine test, on the other hand, uses a device with several prongs that are coated with tuberculin and is less invasive than the Mantoux test.

Procedure

The tine test is administered by pressing a small, circular device with several prongs onto the skin of the forearm. The prongs, which are coated with tuberculin, puncture the skin and introduce the tuberculin into the body. The test is read 48 to 72 hours after administration, with a positive result indicating a possible TB infection.

Accuracy

The tine test is less accurate than the Mantoux test and is more likely to produce false-positive results. Because of this, the tine test is not recommended for use in people who are at low risk of TB infection. In addition, the tine test is not recommended for use in people who have previously received the BCG vaccine, as the vaccine can cause a false-positive result.

See also

• Tuberculosis
• Mantoux test
• BCG vaccine

References

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