7. RBC Inclusions

Question 1

Composition of basophilic stippling; punctate basophilia

Answer 1

Precipitated RNA

Question 2

Composition of Howell Jolly bodies

Answer 2

DNA (nuclear fragment)

Question 3

Composition of Heinz body

Answer 3

Denatured hemoglobin

Question 4

Composition of Pappenheimer bodies

Answer 4

Iron

Question 5

Composition of Cabot ring

Answer 5

Remnant of mitotic spindle

Question 6

Composition of Hgb H

Answer 6

Precipitate of β-chains of hemoglobin

Question 7

Bluish tinge throughout cytoplasm

Answer 7

Diffuse basophilia

Question 8

Polychromasia

Answer 8

Diffuse basophilia

Question 9

Blue-purple granules distributed throughout cytoplasm

Answer 9

Basophilic stippling (punctate basophilia)

Question 10

Dense, round, blue/purple granule; usually one per cell; occasionally multiple

Answer 10

Howell Jolly body

Question 11

Round granule attached to inner membrane

Answer 11

Heinz body

Question 12

Clusters of small, light blue granules, often near periphery of cell

Answer 12

Pappenheimer bodies

Question 13

Blue rings or figure-eights

Answer 13

Cabot ring

Question 14

Composition of diffuse basophilia

Answer 14

RNA