Frage 1
Frage
The composition of blood is
Antworten
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55% plasma, 45% formed elements
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45% plasma, 55% formed elements
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50% plasma, 50% formed elements
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none of the above
Frage 2
Frage
Reduced red blood cell numbers cause
Frage 3
Frage
Which of the following formed elements carry oxygen?
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leukocytes
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erythrocytes
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thrombocytes
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monocytes
Frage 4
Frage
Hematocrit and packed cell volume are synonymous terms
Frage 5
Frage
A reticulocyte count can indicate to a physician the rate of leukocyte formation
Frage 6
Frage
Oxygen deficiency increases RBCs numbers by increasing the secretion of erythropoietin by the kidneys
Frage 7
Frage
The life span of circulating RBCs is about 10 - 12 days
Frage 8
Frage
Heme is broken down into iron and amino acids for use in the synthesis of new RBCs
Frage 9
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Plasma is a pale yellow fluid that accounts for more than half of the blood volume
Frage 10
Frage
Serum is whole blood minus the clotting elements
Frage 11
Frage
Synthesis of plasma proteins occurs in the spleen
Frage 12
Frage
The mature erythrocyte does not contain ribosomes, mitochondrias, and other organelles typical of most body cells
Frage 13
Frage
The final step in RBC formation is called erythropoiesis
Frage 14
Frage
A person with antibody A in his or her plasma would have which blood type
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type A
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type B
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type AB
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type O
Frage 15
Frage
Type AB blood is considered to be the universal recipient.
Frage 16
Frage
Blood does not normally contain the anti-Rh [blank_start]antibodies[blank_end] but they may appear in the blood of an Rh-negative mother during certain circumstances.
Frage 17
Frage
Which of the following is not a critical component of coagulation?
Antworten
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thrombin
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fibrinolysis
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fibrinogen
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fibrin
Frage 18
Frage
For prothrombin to be synthesized by the liver, an adequate amount of which vitamin is required?
Antworten
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Vitamin A
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Vitamin C
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Vitamin D
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Vitamin K
Frage 19
Frage
Which of the following does not hasten clotting?
Antworten
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rough spot in the endothelium
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abnormally slow blood flow
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theparin
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all of the above hasten clotting
Frage 20
Frage
Which of the following statements does not describe a characteristic of leukocytes?
Antworten
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they are disc-shaped cells that do not contain a nucleus
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they have the ability to fight infection
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they provide defense against certain parasites
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they provide immune defense
Frage 21
Frage
Which of the following substances is not found in serum?
Frage 22
Frage
Which of the following substances is not found in blood plasma?
Frage 23
Frage
An allergic reaction may increase the number of
Antworten
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eosinophils
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neutrophils
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lymphocytes
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monocytes
Frage 24
Frage
What is a blood clot that is moving through the body called?
Antworten
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embolism
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fibrosis
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heparin
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thrombosis
Frage 25
Frage
What is the primary function of hemoglobin?
Antworten
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fight infection
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produce blood clots
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carry oxygen
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transport hormones
Frage 26
Frage
Are any of the following steps not involved in blood clot formation?
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A blood vessel is injured and platelet factors are formed
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Thrombin is converted into prothrombin
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Fibrinogen is converted into fibrin
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All of the above are involved in blood clot formulation
Frage 27
Frage
Classification of leukocytes that contain cytoplasmic granules: [blank_start]granulocytes[blank_end]
Most numerous leukocytes: [blank_start]neutrocytes[blank_end]
Granulocytes that release heparin and histamine: [blank_start]basophils[blank_end]
Granulocytes that protect against infections from parasitic worms and allergic reactions: [blank_start]eosinophils[blank_end]
Agranulocytes that produce antibodies: [blank_start]lymphocytes[blank_end]
Agranulocytes that can enter tissue spaces as macrophages: [blank_start]monocytes[blank_end]
Cell fragments that function in blood clotting and hemostasis: [blank_start]platelets[blank_end]
Cells from which platelets are formed: [blank_start]megakaryocytes[blank_end]
Classification of leukocytes without cytoplasmic granules: [blank_start]agranulocytes[blank_end]
Classification of formed elements that are nucleated cells lacking hemoglobin: [blank_start]leukocytes[blank_end]
Antworten
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granulocytes
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neutrocytes
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basophils
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eosinophils
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lymphocytes
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monocytes
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platelets
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megakaryocytes
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agranulocytes
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leukocytes