All of these are seen in hemolytic anemia except
**Core Concept**
Hemolytic anemia is characterized by the premature destruction of red blood cells, leading to a decrease in hemoglobin levels and an increase in bilirubin levels. This condition can be caused by various factors, including autoimmune disorders, infections, and genetic mutations.
**Why the Correct Answer is Right**
Hemolytic anemia is often associated with signs of increased red blood cell turnover, such as jaundice, dark urine, and an enlarged spleen. The condition can also lead to anemia, which is characterized by a decrease in the number of red blood cells or the amount of hemoglobin in the blood. In severe cases, hemolytic anemia can cause acute kidney injury due to the buildup of bilirubin and other waste products.
**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because hemolytic anemia is not typically associated with an elevated white blood cell count. While some infections can cause both hemolytic anemia and leukocytosis, this is not a universal finding in hemolytic anemia.
**Option B:** This option is incorrect because hemolytic anemia is not typically characterized by a decrease in platelet count. In fact, some cases of hemolytic anemia can be associated with thrombocytosis, which is an increase in platelet count.
**Option C:** This option is incorrect because hemolytic anemia is not typically associated with a decrease in erythropoietin (EPO) levels. In fact, EPO levels are often elevated in response to the anemia caused by hemolysis.
**Clinical Pearl / High-Yield Fact**
One key feature of hemolytic anemia is the presence of schistocytes (fragmented red blood cells) on peripheral smear, which can be seen in conditions such as microangiopathic hemolytic anemia and autoimmune hemolytic anemia.
**Correct Answer: D.**