Which syringe size is specifically used for TB or PPA tests and intradermal injections?

The 1 mL syringe is specifically used for Tuberculosis (TB) testing, especially for intradermal injections. This is because TB tests require precise dosages, typically in the range of 0.1 mL, which the 1 mL syringe can accurately deliver. This syringe's smaller size allows for more accurate measurement and control when administering minute volumes, which is crucial in a test where the injection must be placed just beneath the skin without penetrating deeply into the subcutaneous tissue.

Intradermal injections, such as those used for TB screening, involve administering a small volume of fluid into the dermal layer of the skin, which the 1 mL syringe facilitates effectively. Larger syringes, such as the 3 mL, 5 mL, or 12 mL options, are generally used for larger volume injections or drawing blood, making them unsuitable for the specific needs of intradermal injections.