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Unit 2 Review

Total questions: 38

Worksheet time: 19mins

Name
Class
Date
1.

Convert 2.64 liters to mcl and give your answer in scientific notation.

a)

 2.64 x 10-6 mcl

b)

2.64 x 10mcl

c)

26.4 x 10-4 ml

d)

264 x 10-5 L

2.

The bone marrow slide shows that cells are mitotic and dividing, with two or more nuclei.  Which term would best describe this evaluation?

a)

All of these responses

b)

Hypoplasia

c)

Aplasia

d)

Neoplasia

3.

What type of inflammatory condition is characterized by an increased number of macrophages on a bone marrow aspirate smear?

a)

Fibrinous

b)

Chronic

c)

Chronic granulomatous

d)

Chronic progranulomatous

4.

A condition in which there is a lower-than-normal number of red and white blood cells as well as platelets in the blood.

a)

Polychromatic

b)

Leukopenia

c)

Thrombocytopenia

d)

Pancytopenia

5.

The definition of the term "leukemia" is neoplastic cells in the blood or bone marrow.

a)
True
b)
False
6.

What is the color(s) of the tube (s) that we would use for hematology.

a)

Purple

b)

Green

c)

Red

d)

Gray

7.

If you were given only a red/gold top, purple top, and green top, what is the order of draw? Assume that red and gold are the same tube.

a)

Yellow, Green, Purple

b)

Green, Red/Gold, Purple

c)

Red/Gold, Green, Purple

d)

Purple, Green, Red/Gold

8.

What is the normal ratio of nucleated cells to fat in adult bone marrow?

a)

50% nucleated cells to 50% fat

b)

75% nucleated cells to 25% fat

c)

25% nucleated cells to 75% fat

d)

100% nucleated cells to 0% fat

9.

What is the normal ratio of nucleated cells to fat in juvenile bone marrow?

a)

50% nucleated cells to 50% fat

b)

75% nucleated cells to 25% fat

c)

25% nucleated cells to 75% fat

d)

0% nucleated cells to 100% fat

10.

What is the normal ratio of nucleated cells to fat in geriatric bone marrow?

a)


75% nucleated cells to 25% fat

b)


50% nucleated cells to 50% fat

c)


25% nucleated cells to 75% fat

d)


100% nucleated cells to 0% fat

11.

Which type of lymphocyte matures only in the thymus?

a)

B lymphocytes

b)

Juvenile B lymphocytes

c)

T lymphocytes

d)

NK cells

12.

Which type of anticoagulant prevents clotting by converting prothrombin to thrombin during the clotting process?

a)

Heparin

b)

EDTA

c)

Citrate

d)

Sodium fluoride

13.

The suffix "philia" means an increased number of cells.

a)
True
b)
False
14.

A "neutropenia" means that there are an increased number of neutrophils in a sample.

a)
True
b)
False
15.

Whole blood is composed of fluid and cells. Which of the following is the fluid component of blood?

a)

Serum

b)

Plasma

c)

Erythrocytes

d)

Leukocytes

16.

Which type of hematology analyzer uses a method, to evaluate cells, that is based on the passage of electric current across two electrodes separated by a glass tube with a small opening with electrolyte fluid on either side of the aperture to conduct the current?

a)

Laser-based flow cytometry

b)

Quantitative buffy coat

c)

Impedance

d)

Hemocytometer

17.

The IDEXX ProCyte, hematology analyzer, uses (3) methods to evaluate cells.  Which three methods does it use?

a)

Laser-based flow cytometry, Impedance, and Optical Florescence

b)

Impedance, Quantitative buffy coat, and optical florescence

c)

Quantitative buffy coat, laser-based flow cytometry, and impedance

d)

None of these answers

18.

Manual cell counts are rarely performed except in which of the following animals?

a)

Dogs

b)

Horses

c)

Cats

d)

Reptiles

19.

A packed cell volume on a sample is 30%. Which of the following would be the estimated red blood cell count?

a)

3 million RBCs/mm3

b)

10 million RBCs/mm3

c)

5 million RBCs/mm3

d)

6 million RBCs/mm3

20.

Which is the correct formula for estimating the red blood cell estimate from a packed cell volume?

a)

PCV % divided by 5

b)

PCV % divded by 6

c)

PVC % divided by 3

d)

PVC % multiplied by 3

21.

Which condition can result in an artificially high packed cell volume?

a)

Liver disease

b)

Dehyrdration

c)

Polychythemia

d)

Hemolytic anemia

22.

Which of the following responses can be a possible cause of relative polycythemia?

a)

Tumors

b)

Excess erythropoietin in the blood

c)

Liver disease

d)

Splenic contraction

23.

A technician needs to calculate the absolute value of neutrophils on a blood smear. The neutrophil percentage on the relative white blood cell count is 78%, and the total WBC count is 6.0 x 109/L. Remember you need to convert 6.0 x 109/L to mcl or mm3 first. What is the absolute value of neutrophils for this patient?

a)

4580 neutrophils/mm3

b)

4600 neutrophils/mm3

c)

4680 neutrophils/mm3

d)

4700 neutrophils/mm3

24.

We complete a manual WBC differential to check the automated values that are out of the normal range for each type of white blood cell.

a)
True
b)
False
25.

We count 150 WBC's for a manual differential.

a)
True
b)
False
26.

The monolayer or "Area of Even Distribution" is usually a distance of one 10x field behind the feathered edge and is the optimal area for examination of cells, because it dries quickly and cells are well spread (not overlapping) and not disrupted.

a)
True
b)
False
27.

Neutrophils are part of the innate immune system and are the first line of (and are essential for) defense against bacterial pathogens.

a)
True
b)
False
28.

Bone marrow is responding to the loss of blood in regenerative anemia.

a)
True
b)
False
29.

What is nonregenerative anemia?

a)

Bone marrow is unable to respond to blood loss

b)

Bone marrow produces excess red blood cells

c)

Blood clots excessively

d)

Blood pressure increases rapidly

30.

In nonregenerative anemia, reticulocytes are ______ in blood.

a)

present

b)

absent

c)

increased

d)

fragmented

31.

Which term best describes the increase in the number of immature neutrophils in the peripheral blood?

a)

Neutropenia

b)

Pancytopenia

c)

Leukocytosis

d)

Left-shift

32.

Which term best describes neoplastic cells present in the blood or bone marrow?

a)

Leukemoid response

b)

Leukemia

c)

Left-shift

d)

Leukocytosis

33.

Hypochromasia in erythrocytes is usually caused by which disorder?

a)

Hemolytic anemia

b)

Immune-mediated disorder

c)

Leukemia

d)

Iron deficiency

34.

Fill in the blank: ________ is an erythrocyte parasite that can cause hemolytic anemia.

a)

Anaplasma

b)

Leishmania

c)

Giardia

d)

Trypanosoma

35.

Which of the following is a bacterial or viral agent that can cause hemolytic anemia?

a)

Babesia

b)

Methylene blue

c)

Acetaminophen

d)

Feline leukemia virus

36.

Fill in the blank: ________ is a toxic exposure that can cause hemolytic anemia.

a)

Onions

b)

Potatoes

c)

Carrots

d)

Lettuce

37.

Which domestic animal species does not typically release reticulocytes from the bone marrow even if in regenerative anemia?

a)

Equine

b)

Porcine

c)

Canine

d)

Feline

38.

Which of the following distinguishes between regenerative and nonregenerative anemia?

a)

Bone marrow response

b)

Etiology

c)

Erthyrocyte indices

d)

Erythrocyte morphology