RBC Anomalies (Page 245-246)

Question 1

Abnormal vairation in RBC volume or diameter (SIZE)

Answer 1

Anisocytosis

Question 2

What is the normal size of an RBC?

Answer 2

6-8 um in diameter

Question 3

What is the normal MCV?

Answer 3

80-100 fl

Question 4

These are large RBCs with >8um in diameter and MCV >100fl

Answer 4

Macrocytes

Question 5

What are the commonly associated disease states in anisocytosis?

Answer 5

Hemolytic, megaloblastic, irondeficiency anemia

Question 6

These are large oval RBCs

Answer 6

Oval Macrocyte

Question 7

These are small RBCs; diameter <80fl

Answer 7

Microcyte

Question 8

Abnormal variation in RBC shape

Answer 8

Poikilocytosis

Question 9

These are small, round, dense RBC with no central pallor

Answer 9

Spherocyte

Question 10

These are elliptical (Cigar shaped), oval (Egg shaped) RBC

Answer 10

Elliptocyte, Ovalocyte

Question 11

RBC with a slitlike are of central pallor

Answer 11

Stomatocyte

Question 12

These are thin, dense, elongated RBC pointed at each end; may be curved

Answer 12

Sickle cell

Question 13

Hexagonal crystal of dense hemoglobin formed within the RBC membrane

Answer 13

Hb C Crystal

Question 14

Fingerlike or quartzlike crystal of dense hemoglobin protruding from the RBC membrane

Answer 14

Hb SC Crystal

Question 15

RBC with hemoglobin concentrated in the center and around the periphery resembling a target

Answer 15

Target cell

Codocyte

Question 16

Fragmented RBC due to rupture in the peripheral circulation

Answer 16

Schistocyte

Schizocyte

Question 17

RBC Fragment in a shape of a helmet

Answer 17

Helmet cell

Keratocyte

Question 18

RBC with membrane folded over

Answer 18

Folded cell

Question 19

Small dense RBC with few irregularly spaced projections of varying length

Answer 19

Acanthocyte

Thorn/Spurr Cell

Question 20

RBC with blunt or pointed, short projections that are usually evenly spaced over the surface of the cell; present in all fields of blood film but in variable numbers per field

Answer 20

Burr Cell

Echinocyte

Question 21

RBC with a single pointed extension resembling a teardrop or pear

Answer 21

Teardrop cell

Dacrocyte

Question 22

Other name for Teardrop cell

Answer 22

Dacrocyte

Question 23

Other name for Burr cell

Answer 23

Echinocyte

Question 24

Other name for Spurr cell

Answer 24

Acanthocyte

Question 25

Other name for Helmet cell

Answer 25

Keratocyte

Question 26

Other name for Target cell

Answer 26

Codocyte