Section 13

Question 1

What are the WBC reference ranges

Answer 1

Male & Female: 4.0-11*10^3/mm^3

Question 2

What are the male and female PLT reference ranges

Answer 2

Male & female: 150-400*10^3/mm^3

Question 3

What is the volume of 1 primary square in a neubauer hemocytometer

Answer 3

0.1 mm^3

Question 4

How many squares are counted for manual white cell count

Answer 4

4 primary squares (corners)

Question 5

What is the volume of one secondary square

Answer 5

0.004mm^3

Question 6

How many secondary squares are in one primary square

Answer 6

25

Question 7

How many squares and what kind are counted for RBC manual counts

Answer 7

5 secondary squares

Question 8

What is the volume of one tertiary square

Answer 8

0.00025 mm^3

Question 9

How many of what type of square is counted for PLT manual count

Answer 9

10 secondary squares

Question 10

What dilutions are used for WBC, RBC and PLT neubauer hemocytometer

Answer 10

WBC: 1:20
RBC: 1:200
PLT: 1:100

Question 11

What equation is used to determine cell volume in a blood sample using neubauer hemocytometer

Answer 11

WBC or PLT 10^3/mm^3 =
(Avg#cells counteddilution factor*10)/(# of primary squares counted)

Question 12

Equation to correct WBC for nucleated red cells

Answer 12

=(100*uncorrected WBC)/(100+nRBC)