Pediatrics General f7cfbe91 A 2 year old child has a Mantoux test reading of 12 mm × 12 mm after 48 hours. In this case : A Anti – TB drugs should be started even if x–ray chest and haemogram are normal B Treatment should be started only if x–ray chest and haemogram are suggestive C One should wait till overt sign of TB appear D No treatment is required High-Yield Explanation Positive tuberculine test in 2 yrs. old child confirms T.B.