What does an abnormal erythropoietin (EPO) level indicate?
Abnormal erythropoietin levels suggest possible disease of the bone marrow or kidneys. Another possibility is abuse by an athlete to increase the red cell count for better athletic performance. The correct interpretation of an abnormal erythropoietin level depends on the particular clinical situation. Sometimes, the erythropoetin level may be inappropriately normal when it should be elevated (such as when there is an anemia), indicating a problem with the kidneys.