<prompt> Under the national TB programme, for a PHC to be called a PHC-R, requisite is -MicroscopyMicroscopy plus radiologyRadiologyNone of the above  <response>: Ans. is b i.e., Microscopy plus radiology o District tuberculosis centre DTC is the nucleus of DTP o The function of DTC is to plan, organize and implement the DTP in the entire district, in association with general Health services. o When DTP activities Sputum microscopy, chest X-ray, Anti-TB treatment are introduced in an organized manner in a peripheral health institution PHI, it is considered to be implemented PHI. o It is impoant that only such PHIS are selected for implementation of the programme, which are under the charge of qualified Medical officers. 