WBC COUNTING

Question 1

Parts of wbc pipette

Answer 1

Calibrated stem (1 unit)
Bulb (10 units)
Bead (white)
Stem

Question 2

Materials and equipment

Answer 2

Anticoagulated blood
Wbc pipette
Diluting fluid
Tally counter
Counting chamber
Gauze pad
Microscope
Test tube

Question 3

Aspirate blood up to what mark of the capillary stem?

Answer 3

0.5 mark

Question 4

Dip the pipette in to the diluting fluid and draw diluting fluid until it reaches the

Answer 4

11 mark

Question 5

Using ___ count the wbcc in the 4 large squares

Answer 5

Lpo

Question 6

Each wbc squares is divided further to

Answer 6

16 squares

Question 7

Leukocyte count/cu.mm =

Answer 7

of wbc counted in 4sq.mm x area cfx depth cf ×dil. cf

Question 8

Area correction factor

Answer 8

1/4 or 4

Question 9

Depth of countjng chamber

Answer 9

0.1 ot 1/10 mm

Question 10

Depth correction factor

Answer 10

10

Question 11

Ratio of dilution

Answer 11

1:20 or 1/20

Question 12

Dilution correction factor

Answer 12

20

Question 13

1 cu mm = ?

Answer 13

1 ul

Question 14

If px has leukopenia draw blood to ___ and diluent to ___

Answer 14

1 mark
Diluent: 11