Deck 12: Complete Blood Count Cbc With Differential

Question 1

________________may be evident in the case of lead exposure.

Answer 1

Leukopenia

Question 2

Suppose that on a WBC differential the percentage of lymphocytes is increased and some of these are "reactive" lymphocytes. What condition is associated with these results?

A)Leukemia
B)Leukopenia
C)Infectious mononucleosis
D)Polycythemia

Answer 2

C
Patients with infectious mononucleosis have increased lymphocyte counts because of the viral infection, and their lymphocytes are not typical in appearance; they are described as "reactive" lymphocytes. The other conditions listed here do not demonstrate the same pattern.

Question 3

The complete blood count is a comprehensive group of tests that give information about the red blood cells, white blood cells, and the platelets.

Answer 3

True
The complete blood count provides a comprehensive overview of the cells present in the specimen, the hemoglobin concentration of the cells, and the percentage of red cells as compared to the total blood volume.

Question 4

Which of these terms does not refer to the distinctive shape of a red blood cell?

A)Anemic
B)Target
C)Helmet
D)Sickle

Question 5

When an automated hematology analyzer utilizes electrical impedance for measurement of the formed elements in the blood, the different cell types are identified by the instrument utilizing which measurement?

A)The height of the voltage changes
B)The color of the light scattered
C)The polarity of the cells
D)It is not possible to differentiate the different types of cells.

Question 6

An abnormal excess of red blood cells is termed:

A)Anemia
B)Polycythemia
C)Leukemia
D)Thrombocytosis

Question 7

Red blood cells that appear similar in size and shape with the appropriate amount of hemoglobin may be described as ____________and normochromic.Short Answer

Question 8

What is the reference (normal) range for the platelet count?

A)13-18 g/dL
B)32-35 g/dL
C)150,000-450,000/mm³
D)4,300-10,800 /mm³

Question 9

The platelet count may be decreased when a patient has a viral infection. The decrease in platelets is termed _____________.

Question 10

A malignant condition where a large number of white blood cells are produced in the bone marrow at the expense of normal ones is termed:

A)Anemia
B)Polycythemia
C)Leukemia
D)Thrombocytosis

Question 11

A red blood cell that has an abnormally large, pale center when visualized on a stained smear is called:

A)Normocytic
B)Anemia
C)Hypochromic
D)Thrombocytopenia

Question 12

The results of the CBC show a white blood cell count above the reference (normal) range. What term is used to describe this white blood cell count?

A)Leukopenia
B)Leukocytosis
C)Anemia
D)Thrombocythemia

Question 13

Which of these terms refers to the size of an erythrocyte?

A)Anisocytosis
B)Macrocytosis
C)Hypochromic
D)Hyperchromic

Question 14

Francee Jones is providing a tour of the office laboratory to some local community college students. One of the students asks Francee what principle is used in the Coulter counter she uses to perform CBC tests. What should she say?

Question 15

Red blood cells are normally visualized in a wide variety of sizes and shapes on the stained blood smear.Completion
Complete each statement.

Question 16

The white blood cell differential may be performed manually in a physician office laboratory using a centrifuge.

Question 17

Which of these disorders usually demonstrates an elevated platelet count?

A)Leukocytosis
B)Anemia
C)Polycythemia
D)Thrombocytosis

Question 18

What is the type of white blood cell (of the five white blood cell types typically seen) that is normally found least in frequency on the leukocyte differential?

A)Basophil
B)Monocyte
C)Lymphocyte
D)Eosinophil

Question 19

The red blood cell indices are used to describe the red blood cells and the hemoglobin content.

Question 20

The most prevalent leukocyte in the general circulation is the _________________.

Question 21

Mrs. Desken comes in to see the health-care provider because she is having severe allergy symptoms. The physician orders a CBC to be performed. What type of white blood cell may be elevated in her blood sample?

Question 22

Francee Jones is the CMA responsible for reviewing the laboratory results as she takes them from the printer. While reviewing the CBC results for Mr. Coffey, she notices his leukocyte count is 13,500/mm³. Is this result considered to be abnormal?