Denatured hemoglobin found in erythrocytes is referred to as a/an:

Denatured hemoglobin found in erythrocytes is referred to as a/an:

• A. Howell-jolly bodies
• B. Anaplasma body
• C. Spherocyte
• D. Heinz body

Answer: (D)

Heinz bodies are clusters of denatured hemoglobin that form inside red blood cells when the hemoglobin is damaged by oxidative stress. They appear as small round inclusions attached to the inner surface of the RBC when viewed with supravital staining. This specific finding directly reflects Hb denaturation, which is why it’s the correct descriptor. The other terms describe different abnormalities: Howell-Jolly bodies are nuclear remnants, not denatured Hb; spherocytes are misshapen, membrane-altered red cells; and Anaplasma bodies are intracellular organisms, not precipitated hemoglobin.

Heinz bodies are clusters of denatured hemoglobin that form inside red blood cells when the hemoglobin is damaged by oxidative stress. They appear as small round inclusions attached to the inner surface of the RBC when viewed with supravital staining. This specific finding directly reflects Hb denaturation, which is why it’s the correct descriptor. The other terms describe different abnormalities: Howell-Jolly bodies are nuclear remnants, not denatured Hb; spherocytes are misshapen, membrane-altered red cells; and Anaplasma bodies are intracellular organisms, not precipitated hemoglobin.