Hello my mother is asthmatic an has severe lung infection ( doc says there are small patches in her lungs or probably holes -x ray has shown ), her doctor who is a pulmonologist has prescribed certain tests like CECT Thorax, Total IgE levels, TSH,RA,ANA,ENA (Qualitative), ECHO, D-Dimer and BN levels, pls tell me if these are valid and costs and where should I go for the tests where I can get discount ? thanks