what is the dosage for a tb skin test
A standard dose of 5 tuberculin units (TU - 0.1 ml) (The standard Mantoux test in the UK consists of an intradermal injection of 2 TU of Statens Serum Institute (SSI) tuberculin RT23 in 0.1 ml solution for injection.) is injected intradermally (between the layers of dermis) and read 48 to 72 hours later.