A patient with anemia is found to have a low serum haptoglobin level and a high serum lactate dehydrogenase level. What is the most likely diagnosis?

A Iron deficiency anemia
B Vitamin B12 deficiency anemia
C Hemolytic anemia ✓
D Anemia of chronic disease

Explanation

Low serum haptoglobin and high serum lactate dehydrogenase levels are indicative of intravascular hemolysis, which is characteristic of hemolytic anemia.

Source

Williams Hematology
Hematology Hematology: Anemia Hematology: Anemia Medium MEDICAL Confidence: high