EXERCISES, LESSON 5
INSTRUCTIONS: Answer the following exercises by marking the lettered responses
that best answer the exercise, by completing the incomplete statement, or by writing the
answer in the space provided at the end of the exercise.
After you have completed all of the exercises, turn to "Solutions to Exercises" at
the end of the lesson and check your answers. For each exercise answered incorrectly,
reread the material referenced with the solution.
For a WBC count, after drawing blood into the diluting pipet, it is necessary to wipe
any excess blood from the outside of the pipet in order to avoid:
a. Wasting cells.
b. Dirtying the pipet.
Dirtying the hemacytometer cover glass.
d. Transferring cells to the diluting fluid.
When doing a WBC count, to what mark should the diluting fluid be drawn?
When performing a WBC count, which reagents may be used as dilutants?
a. Acetic acid or sulfuric acid.
b. Acetic acid or citric acid.
Acetic acid or hydrochloric acid.
d. Acetic acid or trisphosphoric acid.