9.
At what point is it is a good, safe, practice to avoid contact of reagents with metals
since metals may become unusable for laboratory work?
b. Refrigeration and labeling.
c.
Preparation and mixing.
10.
Highly toxic reagents should be conspicuously labeled:
a. Reagent.
b. "POISON."
c.
Poison.
d. "REAGENT".
11.
The white blood cell diluting pipet has a:
a. Smaller bulb, a red bead, and an "11."
b. Smaller bulb, a white bead, and an "11."
c.
Larger bulb, a red bead, and a "101."
d. Larger bulb, a white bead, and a "101."
12.
The red blood cell diluting pipet has a:
a. Smaller bulb, a red bead, and an "11."
b. Smaller bulb, a white bead, and an "11."
c.
Larger bulb, a red read, and a "101."
d. Larger bulb, a white read, and a "101."
MD0853
2-19