MIRCO Chapter 2: Tools of the Laboratory Flashcards
1
Q
Chapter 2 NCLEX Prep
- The physician has ordered that a urine culture be taken on a client. What priority information should the nurse know in order to complete the collection of this specimen?
a. Date and time of collection
b. Method of collection
c. Whether the client is NPO (to have nothing by mouth)
d. Age of client
A
- b. Method of collection
Chapter 2: Tools of the Laboratory
2
Q
Chapter 2 NCLEX Prep
- An enriched medium may contain which of the following substances?
Choose all that apply.
a. serum
b. hemoglobin
c. growth factors
d. red blood cells
e. milk
A
- a. serum
b. hemoglobin
c. growth factors
d. red blood cells
e. milk
Chapter 2: Tools of the Laboratory
3
Q
Chapter 2 NCLEX Prep
- The capacity of an optical system to distinguish or separate two adjacent objects or points from one another is known as
a. the real image.
b. the virtual image.
c. resolving power.
d. numerical aperture.
e. power.
A
- c. resolving power.
Chapter 2: Tools of the Laboratory
4
Q
- A mixed culture is
a. the same as a contaminated culture.
b. one that has been adequately stirred.
c. one that contains two or more known species.
d. a pond sample containing algae and protozoa.
A
- c. one that contains two or more known species.
Chapter 2: Tools of the Laboratory
5
Q
- Resolution is ____ with a longer wavelength of light.
a. improved
b. worsened
c. not changed
d. not possible
A
- b. worsened
Chapter 2: Tools of the Laboratory
6
Q
- A microscope that has a total magnification of 1,500× when using the oil immersion objective has an ocular of what power?
a. 150×
b. 1.5×
c. 15×
d. 30×
A
- c. 15×
Chapter 2: Tools of the Laboratory
7
Q
- A cell is 25 μm wide when viewed at 1,000× magnification. This measurement can also be written properly as
a. 25 mm.
b. 25,000 mm.
c. 0.025 mm.
d. 2.5 mm.
A
- c. 0.025 mm.
Chapter 2: Tools of the Laboratory
8
Q
- DNA fingerprinting and antibody-based ELISA tests would be used during which step of microbial analysis?
a. isolation
b. inspection
c. inoculation
d. identification
A
- d. identification
Chapter 2: Tools of the Laboratory
9
Q
- Motility is best observed with a
a. hanging drop preparation.
b. negative stain.
c. streak plate.
d. flagellar stain.
A
- a. hanging drop preparation.
Chapter 2: Tools of the Laboratory
10
Q
- Bacteria tend to stain more readily with cationic (positively charged) dyes because bacteria
a. contain large amounts of alkaline substances on their surfaces.
b. contain large amounts of acidic substances on their surfaces.
c. carry a neutral charge on their surfaces.
d. have thick cell walls.
A
- b. contain large amounts of acidic substances on their surfaces.
Chapter 2: Tools of the Laboratory
11
Q
- A fastidious organism must be grown on what type of medium?
a. general-purpose medium
b. differential medium
c. defined medium
d. enriched medium
A
- d. enriched medium
Chapter 2: Tools of the Laboratory
