Hemocytometer Additional From Page 46

Question 1

Leukocytosis:
al. WBC count >30.0 x 10^9/L = dilute to
b. WBC count >300 x 10^9/L = dilute to

Answer 1

1:100

1:200

Question 2

Leukocpenia:
a. <3.0 x 10^9/L =

Answer 2

dilute to 1:10

Question 3

Polycythemia = dilute to

Answer 3

1:301 (20uL whole blood + 6mL RBC diluting fluid)

Question 4

Severe Anemia = dilute to

Answer 4

1:101 (20uL whole blood + 2mL RBC diluting fluid)

Question 5

In WBC count, the difference between two ruled areas should agree within____

Answer 5

10%

Question 6

Range of error:
a. WBC =
b. RBC =

Answer 6

15%

10-20%

Question 7

Sources of Error:

Answer 7

a. Dust and fingerprints
b. Uneven flow of diluted blood into the chamber
c. Underfilled/Overfilled chamber

Question 8

In solving, when the dilution is not specifically stated and if there are no indications for solving for the dilution, always assume that the dilution for RBC is____, for WBC is____, and for platelet is____.

Answer 8

1:200

1:20

1:100