WBC Differential Counting

Question 1

Scanning/counting methods

Answer 1

1. Cross-sectional
2. Longitudinal
3. Battlement

Question 2

Neutrophil band

Answer 2

Relative count: 2-6
Absolute count (x10^9/L): 0-0.7

Question 3

Neutrophil segmenters

Answer 3

Relative count: 50-70
Absolute count (x10^9/L): 1.7-7.5

Question 4

Lymphocytes

Answer 4

Relative count: 18-42
Absolute count (x10^9/L): 1.0-3.2

Question 5

Monocytes

Answer 5

Relative count: 2-11
Absolute count (x10^9/L): 0.1-1.3

Question 6

Eosinophil

Answer 6

Relative count: 1-3
Absolute count (x10^9/L): 0-0.3

Question 7

Basophil

Answer 7

Relative count: 0-2
Absolute count (x10^9/L): 0-0.2

Question 8

Conditions associated with specific WBCs:

Neutrophilia

Answer 8

Appendicitis
Bacterial infections
Meningitis

Question 9

Conditions associated with specific WBCs:

Lymphocytosis

Answer 9

Viral infections
Whooping cough
Lymphocytic leukemia

Question 10

Conditions associated with specific WBCs:

Monocytosis

Answer 10

Brucellosis
Tuberculosis
Hodgkin’s disease

Question 11

Conditions associated with specific WBCs:

Basophilia

Answer 11

Irradiation
Polycythemia vera
Splenectomy

Question 12

Conditions associated with specific WBCs:

Eosinophilia

Answer 12

Allergies
Scarlet fever
Parasitic infections