My eosiniphil is at 23% with count 1633 (high). How do I know what is causing this eosiniphil level high? I have got ANA, C ANCA, P ANCA tests done which are all negative. My IgE level is 198(high). Is there any way to find out whether it is bacterial, viral or parasitic infection? What are the tests that can be done to know the root cause? I also have chronic
kidney disease (CKD).