All the following indicates CRF w.r.t to ARF-

Acute kidney injury, also called acute renal failure, is more commonly reversible than chronic kidney failure. Chronic kidney disease (CKD) is usually caused by a long-term disease, such as high blood pressure or diabetes, that slowly damages the kidneys and reduces their function over time When kidneys are diseased or damaged, they do not make enough EPO. As a result, the bone marrow makes fewer red blood cells, causing anemia. Other common causes of anemia in people with kidney disease include blood loss from hemodialysis and low levels of the following nutrients found in food: iron Ref Harrison20th edition pg 276