13.
The 0.5 mark on the RBC diluting pipet designates a volume equal to:
a. 0.5 ml.
b. 0.5 cu mm.
c.
1/20 of the dilution volume.
d. 1/200 of the dilution volume.
14.
Which statement is correct concerning the use of the diluting pipets for cell
counting?
a. Blood or fluid is drawn into the pipet to a predetermined point and diluted to
the correct mark with diluting fluid. After proper mixing, the diluted substance
is placed in the counting chamber and the cells are counted.
b. Blood or fluid is drawn into the pipet to an arbitrary point and diluted to the
correct mark with diluting fluid. After proper mixing, the diluted substance is
placed in the counting chamber and the cells are counted.
c.
Blood or fluid is drawn into the pipet to a predetermined point and diluted to a
guesstimated mark with diluting fluid. After gentle mixing, the diluted
substance is placed in the counting chamber and the cells are counted.
15.
Usually, the technique for diluting the blood specimen with a pipet calls for whole
blood to be diluted only to the "11" or "101" mark with appropriate diluting fluid
dependent upon the type of cell count. How is the dilution calculated?
a. The volume of fluid is measured in the stem and then calculated.
b. Dilution is calculated on the volume in the bulb.
c.
Both a and b.
d. None of the above
MD0853
2-20