@loribmt Two years in a row his RBCs were elevated. We were not told the first time. The second time he had to go back in and get retested and sure enough they were elevated again. That is when we saw they had also been the year before. His PCP sent him to a hematologist/oncologist because of the possibility of polythemia vera. He tested him thoroughly and did a JAK2 test which was negative. In a short period of time, his blood work was normal. The Hematologist said he thought the blood had been left out on the counter too long before being sent to the lab that the PCP 's practice uses. We were relieved and accepted that explanation. (But two years in a row! ) He does tend to get headaches so when he had a severe one I did not hesitate to take him to the ER. They diagnosed migraines.