Question 1

Fibrinolysis is mediated by:

Accepted Answer

A)   heparin.
B)   fibrinogen.
C)   plasmin.
D)   albumin. C

Question 2

While checking lab results, the nurse remembers that the normal leukocyte count is:

Accepted Answer

A)   1000-2000 per cubic millimeter.
B)   5000-10,000 per cubic millimeter.
C)   4.2-6.2 million per cubic millimeter.
D)   1.2-2.2 million per cubic millimeter. B

Question 3

An adult patient's blood sample is analyzed in a laboratory.Assuming a normal sample, which type of white blood cell accounts for the highest percentage?

Accepted Answer

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

Question 4

When a staff member asks how erythrocytes can carry oxygen, the nurse should describe which of the following properties that allow erythrocytes to function as gas carriers? (select all that apply)

Accepted Answer

A)   Biconcavity
B)   Reversible deformability
C)   Undergoes mitotic division
D)   Presence of many mitochondria
E)   Presence of a nucleus

Question 5

Which cytokines participate in hematopoiesis?

Accepted Answer

A)   Stimulating factors (CSFs) 
B)   Eosinophils
C)   Basophils
D)   Neutrophils

Question 6

Which of the following assessment findings is most likely to occur following a splenectomy?

Accepted Answer

A)   Leukocytosis
B)   Hypoglycemia
C)   Decreased red blood cell count
D)   Decreased platelets

Question 7

Erythropoietin is produced in the:

Accepted Answer

A)   liver.
B)   bone marrow.
C)   kidneys.
D)   spleen.

Question 8

A nurse is discussing a cell that can differentiate into any tissue type.Which term is the nurse describing?

Accepted Answer

A)   Hematopoietic
B)   Pluripotent
C)   Blastocyst
D)   Progenitor

Question 9

A nurse is caring for an elderly patient.Which of the following are true regarding the hematological system and aging? (select all that apply)

Accepted Answer

A)   Total serum iron is decreased.
B)   Total iron-binding capacity is decreased.
C)   Intestinal iron absorption is decreased.
D)   Lymphocyte function is unchanged.
E)   Platelet aggregation is unchanged.

Question 10

Which condition will cause a patient to secrete erythropoietin?

Accepted Answer

A)   Low blood pressure
B)   Hypercarbia
C)   Inflammation
D)   Hypoxia

Question 11

A group of cells isolated in the laboratory have membrane-bound granules in their cytoplasm, and they show phagocytic activity.Which of the following cells is most similar?

Accepted Answer

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

Question 12

Which electrolyte will the nurse check to ensure normal platelet functioning?

Accepted Answer

A)   Sodium
B)   Potassium
C)   Magnesium
D)   Calcium

Question 13

Which of the following nutritional components will the nurse encourage a patient to consume as it is needed for erythropoiesis?

Accepted Answer

A)   Vitamin B12
B)   Vitamin B1
C)   Vitamin D
D)   Zinc

Question 14

The greatest proportion of total body iron is located in the:

Accepted Answer

A)   erythrocytes.
B)   spleen pulp.
C)   bone marrow.
D)   liver tissue.

Question 15

While planning care for a newborn, the pediatric nurse recalls that the site of hematopoiesis in the fetus is the:

Accepted Answer

A)   bone marrow.
B)   kidney.
C)   lymph nodes.
D)   spleen.

Question 16

Monocytes are blood cells that mature (differentiate)into:

Accepted Answer

A)   macrophages.
B)   neutrophils.
C)   eosinophils.
D)   mast cells.

Question 17

During an infection, lymph nodes enlarge and become tender because:

Accepted Answer

A)   lymphocytes are rapidly dividing.
B)   edema accumulates within the fibrous capsule.
C)   microorganisms are accumulating.
D)   the nodes are not functioning properly.

Question 18

In addition to playing a role in hemostasis, platelets have the ability to:

Accepted Answer

A)   stimulate bone marrow production of erythrocytes.
B)   release biochemical mediators of inflammation.
C)   undergo cell division in response to bleeding.
D)   activate a humoral response.

Question 19

After birth, red blood cells are normally made only in the:

Accepted Answer

A)   liver.
B)   spleen.
C)   bone marrow.
D)   kidney.

Question 20

The predominant phagocyte of early inflammation is the:

Accepted Answer

A)   eosinophil.
B)   lymphocyte.
C)   macrophage.
D)   neutrophil.

Exam 20: Structure and Function of the Hematologic System