<prompt> The primary cause of anemia in chronic kidney disease CKD is:Chronic inflammationIron deficiencyErythropoetin deficiencyDiminished red blood survival  <response>: All are causes of anemia in CKD, the primary cause is insufficient production of erythropoetin by the diseased kidneys. Other causes are; Bleeding diathesis Hyperparathyroidismbone marrow fibrosis Folate or vitamin B12 deficiency Hemoglobinopathy Ref: Harrisons principles of internal medicine, 18th edition, Page: 2316. 