Which stain is known to stain both specific and nonspecific granules in myelogenous cells?

Prepare your best for the AAB MT Hematology Exam. Utilize flashcards and multiple choice questions, complete with explanations and hints. Ace the exam!

Multiple Choice

Which stain is known to stain both specific and nonspecific granules in myelogenous cells?

Staining both specific and nonspecific granules in myelogenous cells is best achieved by a Romanowsky-type stain that uses a mix of azure dyes with eosin, such as Giemsa. This combination binds to both basic and acidic components within the cell, so the azurophilic (nonspecific) granules, which are rich in basic proteins, stain dark purple, while the specific (secondary) granules, with different enzymatic contents and acidity, take up eosin and other dyes to produce distinct colors. This dual staining highlights the granule patterns inside neutrophils and other granulocytes, helping identify maturation stages and abnormalities. Prussian blue targets iron (like hemosiderin), not granulule content. Hematoxylin and eosin is a general tissue stain that doesn’t reliably emphasize the dual granule types in myeloid cells. Wright’s stain is a differential stain similar in purpose but Giemsa is particularly noted for highlighting both granule types in these cells.

Staining both specific and nonspecific granules in myelogenous cells is best achieved by a Romanowsky-type stain that uses a mix of azure dyes with eosin, such as Giemsa. This combination binds to both basic and acidic components within the cell, so the azurophilic (nonspecific) granules, which are rich in basic proteins, stain dark purple, while the specific (secondary) granules, with different enzymatic contents and acidity, take up eosin and other dyes to produce distinct colors. This dual staining highlights the granule patterns inside neutrophils and other granulocytes, helping identify maturation stages and abnormalities.

Prussian blue targets iron (like hemosiderin), not granulule content. Hematoxylin and eosin is a general tissue stain that doesn’t reliably emphasize the dual granule types in myeloid cells. Wright’s stain is a differential stain similar in purpose but Giemsa is particularly noted for highlighting both granule types in these cells.

More practice questions