Reticulocytes on a Wright-type stain appear as:

Reticulocytes on a Wright-type stain appear as:

• A. Hypochromic
• B. Crenated
• C. Polychromatic
• D. Hyperchromic

Answer: (C)

Reticulocytes on Wright-type stains appear polychromatic because they still contain residual RNA in their cytoplasm. That RNA takes up basic dyes more than hemoglobin does, giving the cells a bluish tint alongside the pink-stained hemoglobin. This mixed coloration is described as polychromasia and reflects the immature, actively producing state of reticulocytes. The other terms describe Hb content or artifacts rather than this mixed basophilic-pink appearance. Hypochromic would imply unusually low hemoglobin staining, hyperchromic would imply excessive staining, and crenated refers to cell shape artifacts from slide prep rather than the coloration pattern seen with immature RBCs.

Reticulocytes on Wright-type stains appear polychromatic because they still contain residual RNA in their cytoplasm. That RNA takes up basic dyes more than hemoglobin does, giving the cells a bluish tint alongside the pink-stained hemoglobin. This mixed coloration is described as polychromasia and reflects the immature, actively producing state of reticulocytes.

The other terms describe Hb content or artifacts rather than this mixed basophilic-pink appearance. Hypochromic would imply unusually low hemoglobin staining, hyperchromic would imply excessive staining, and crenated refers to cell shape artifacts from slide prep rather than the coloration pattern seen with immature RBCs.