Medical diagnostics include various medical tests /imaging usually performed to detect infections, conditions and diseases. The digital images files for example a chest or CT image of a patient can be promptly processed using AI to not only know the presence of a host of dozens of respiratory/chest or cardiac diseases but also can depict their severity of the diseases. The enables a clinical doctor to treat a patient immediately with increased confidence. Medical screening of Covid 19 patients using simple chest x ray images can also be explored using AI tool.