Homework assignment


  1. Which of the following statements is not true about performing an accurate sed rate procedure?
a. Test should be set up within three hours after the blood is drawn.
b. Test is conducted at 50 degrees.
c. Tube must be read at exactly two hours.
d. Counter must be free of vibrations.

1 points   

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  1. Match the lettered hematocrit tube layers with their appropriate label.

                                                              – a. b. c. d. e. Buffy layer
                                                              – a. b. c. d. e. Plasma
                                                              – a. b. c. d. e. RBC layer
                                                              – a. b. c. d. e. Clay sealant
                                                              – a. b. c. d. e. Air
a. Label A
b. Label C
c. Label D
d. Label B
e. Label E

5 points   


  1. Match the definitions with the appropriate term.
                                                   – a. b. c. d. anisocytosis
                                                   – a. b. c. d. hypochromic
                                                   – a. b. c. d. poikilocytosis
                                                   – a. b. c. d. polychromatic
a. cells have many colors
b. cells show marked variation in shape
c. cells have decreased
d. cells show marked variation in size

4 points   


  1. The anticoagulant and Vacutainer tube used for most hematology testing in a reference lab is ____.
a. heparin in a green top tube
b. EDTA in a lavender top tube
c. EDTA in a green top tube
d. No anticoagulant is needed for hematology tests
e. heparin in a lavender top tube

1 points   


  1. The CBC generally includes all of the following except ____.
a. hemoglobin
b. hematocrit
c. ESR
d. RBC count

1 points   


  1. Which of the following is the normal range of values for hemoglobin of the adult female?
a. 13-18 g/dl
b. 12-14 g/dl
c. 9-14 g/dl
d. 12-16 g/dl

1 points   


  1. Match the following tests with their possible reference ranges. (Hint: Think of what each measures, and look at the units as well as the numerical ranges.)
                                        – a. b. c. Hemoglobin
                                        – a. b. c. Hematocrit
                                        – a. b. c. ESR
a. 0 to 20 mm/hour
b. 36% to 55%
c. 12 to 18 gm/dL

3 points   


  1. The erythrocyte indices ____.
a. allow for calculations of oxygen in hemoglobin
b. provide information for hematocrit
c. compare the RBC count to the WBC count
d. aid in diagnosing anemia classifications

1 points   


  1. Match each RBC index with its ratio and reference range.
                                        – a. b. c. MCV (mean cell volume)
                                        – a. b. c. MCHC (mean cell hemoglobin concentration)
                                        – a. b. c. MCH (mean cell hemoglobin)
a. HCT/RBC (82-98 micrometers/Fl)
b. Hgb/HCT (31-37% or gm/dL)
c. Hgb/RBC (26-34 pg)

3 points   


  1. Which of the following statements regarding the making and staining of a blood smear is true?
a. When identifying cells, one should note the size, shape, and color of the blood cell, its nucleus, and its cytoplasm.
b. Medical assistants are qualified to read and report a stained blood smear.
c. Blood cells are observed and identified under the low-power lens of the microscope.
d. A properly done blood smear will have a blunt edge at the end of the smear and a thinner distribution of blood cells in the heel of the slide.

1 points   


  1. When obtaining a capillary sample, the tube should be ________ full.
a. 1/4
b. 3/4
c. 1/2
d. None of the above

1 points   


  1. The major component in the erythrocyte that carries oxygen is ____.
a. hematocrit
b. plasma
c. hemoglobin
d. protein

1 points   


  1. Which of the following best describe the normal hematocrit values for the adult male?
a. 40%-45%
b. 40%-55%
c. 36%-46%
d. 30%-40%

1 points   


  1. Match each anemia with its cause.
                                                              – a. b. c. d. e. Sickle cell anemia
                                                              – a. b. c. d. e. Aplastic anemia
                                                              – a. b. c. d. e. Pernicious anemia
                                                              – a. b. c. d. e. Hemolytic anemia
                                                              – a. b. c. d. e. Iron deficiency anemia
a. Destruction of stem cells in bone marrow from toxins
b. Destruction of circulating RBCs
c. Inherited abnormal hemoglobin S
d. Seen with blood loss (menses, ulcers, hemorrhaging)
e. Caused by decreased vitamin B 12

5 points   


  1. A blood hematocrit is defined as the volume of ________ in a given volume of blood.
a. monocytes
b. thrombocytes
c. leukocytes
d. erythrocytes

1 points   


  1. Match the following CBC pathological terms.
                                                              – a. b. c. d. e. Leukopenia
                                                              – a. b. c. d. e. Polycythemia
                                                              – a. b. c. d. e. Leukocytosis
                                                              – a. b. c. d. e. Anemia
                                                              – a. b. c. d. e. Leukemia
a. Abnormal decrease in RBCs
b. Abnormal increase in RBCs
c. Abnormal increase in WBCs
d. Cancer of the WBCs
e. Abnormal decrease in WBCs


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