Red Cell Morphology Quiz

What is the average diameter of a normal red blood cell?

• 12 microns

• 5 microns

• 7.2 microns

• 10 microns

What term is used when red blood cells of normal size, microcytes, and macrocytes are present in the same field?

• Hyperchromasia

• Anisocytosis

• Hypochromasia

• Poikilocytosis

Which type of red blood cell is characterized by a diameter of 9-14 microns?

• Microcyte

• Codocyte

• Megalocyte

• Spherocyte

What is the term for red blood cells that have a decreased surface-to-volume ratio?

• Acanthocytes

• Elliptocytes

• Drepanocytes

• Spherocytes

What does RDW stand for in the context of red blood cell analysis?

• Red Cell Deficiency Width

• Red Cell Density Width

• Red Cell Diameter Width

• Red Cell Distribution Width

Which condition is associated with the presence of target cells (codocytes)?

• Hereditary spherocytosis

• Thalassemia

• Sickle cell anemia

• Iron deficiency anemia

What is the appearance of megalocytes in terms of hemoglobin concentration?

• Normochromic

• Pseudomacrocytic

• Hyperchromic

• Hypochromic

What is the grading system for poikilocytosis based on the number of cells observed?

• 1+ = 1-2 cells

• 1+ = 8-10 cells

• 1+ = 2-4 cells

• 1+ = 5-7 cells

Which type of red blood cell is described as having thorn-like projections?

• Stomatocyte

• Echinocyte

• Acanthocyte

• Dacryocyte

What is the term for the condition where red blood cells clump together due to antibodies in the plasma?

• True rouleaux

• False rouleaux

• Autoagglutination

• Anisocytosis