WBC COUNT

Question 1

increased levels of leukocytes

Answer 1

Leukocytosis

Question 2

white count above 11.0 x 109/L it means

Answer 2

Leukocytosis

Question 3

counte below the normal

Answer 3

Leukopenia

Question 4

Utilized to indicate infection and may also be employed to follow the progress of certain diseases and therapies

Answer 4

WBC count

Question 5

DILUTING FLUIDS using WBC

Answer 5

1-3% acetic acid
1% hydrogen chloride
Turk’s diluting fluid

Question 6

Diluting fluid of WBC is namely called

Answer 6

Dacie’s fluid

Question 7

WBC pipette mark for blood

Answer 7

0.5 mark

Question 8

Wipe the tip of the pipette using

Answer 8

Gauze

Question 9

Dip the pipette into diluting fluid, and then draw the
diluting fluid into the pipette slowly, until the mixture
reaches the _____ mark..

Answer 9

11 mark

Question 10

Discard the first _________ drops of the diluted
sample

Answer 10

3-4

Question 11

What scanning objective are used for WBC counting

Answer 11

Low power objective

Question 12

Read in what square

Answer 12

4 large squares

Question 13

one large square is made up of

Answer 13

9 (1X1mm square)

Question 14

each of WBC squares is divided further to

Answer 14

16 square

Question 15

the center square for RBC is subdivided into

Answer 15

25 smaller square

Question 16

the distance between each counting surface and coverslip
(depth) is

Answer 16

0.10 mm

Question 17

the total volume of Wbc

Answer 17

9 cu mm

Question 18

Area correction factor of WBC

Answer 18

1/4

Question 19

Depth correction factor of WBC

Answer 19

10

Question 20

Dilution correction factor of WBC

Answer 20

20

Question 21

Leukocyte calculation:

Answer 21

WBC x area of C.f x depth c. F. x dil. C.f.

Question 22

The outer line is the boundary of the
square

Answer 22

Double line

Question 23

The middle line is the boundary of the
square

Answer 23

Triple line

Question 24

Never count cells ________, __________, ____________

Answer 24

Dry, overfilled and underfilled

Question 25

Do not count cells
touching

Answer 25

Bottom line or right line (to avoid double counting)

Question 26

Counting direction used in WBC counting

Answer 26

Zigzag direction

Question 27

What L shape is considered to be counted

Answer 27

Upper L shape

Question 28

Sources of Errors of WBC prep

Answer 28

Failure to mix blood specimen
Failure to immediately mix blood specimen
Using diluent that contaminated with blood
Bubble in thoma pipette