Most common myeloproliferative disorder is: (A) Polycythemia rubra vera, (B) CML, (C) CLL, (D) Myelofibrosis
Answer is A. Examples of Myeloproliferative diseases are Polycythemia rubra vera, Myelofibrosis, and Essential thrombocytopenia. Here CML and CLL are not Myeloproliferative diseases and out the rest two Polycythemia is more common. Reference : Davidaon, 23rd Edition, page no : 969.