Questão 1
Questão
The composition of blood is
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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
Questão 2
Questão
Reduced red blood cell numbers cause
Questão 3
Questão
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
Questão 4
Questão
Hematocrit and packed cell volume are synonymous terms
Questão 5
Questão
A reticulocyte count can indicate to a physician the rate of leukocyte formation
Questão 6
Questão
Oxygen deficiency increases RBCs numbers by increasing the secretion of erythropoietin by the kidneys
Questão 7
Questão
The life span of circulating RBCs is about 10 - 12 days
Questão 8
Questão
Heme is broken down into iron and amino acids for use in the synthesis of new RBCs
Questão 9
Questão
Plasma is a pale yellow fluid that accounts for more than half of the blood volume
Questão 10
Questão
Serum is whole blood minus the clotting elements
Questão 11
Questão
Synthesis of plasma proteins occurs in the spleen
Questão 12
Questão
The mature erythrocyte does not contain ribosomes, mitochondrias, and other organelles typical of most body cells
Questão 13
Questão
The final step in RBC formation is called erythropoiesis
Questão 14
Questão
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
Questão 15
Questão
Type AB blood is considered to be the universal recipient.
Questão 16
Questão
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.
Questão 17
Questão
Which of the following is not a critical component of coagulation?
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thrombin
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fibrinolysis
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fibrinogen
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fibrin
Questão 18
Questão
For prothrombin to be synthesized by the liver, an adequate amount of which vitamin is required?
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Vitamin A
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Vitamin C
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Vitamin D
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Vitamin K
Questão 19
Questão
Which of the following does not hasten clotting?
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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
Questão 20
Questão
Which of the following statements does not describe a characteristic of leukocytes?
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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
Questão 21
Questão
Which of the following substances is not found in serum?
Questão 22
Questão
Which of the following substances is not found in blood plasma?
Questão 23
Questão
An allergic reaction may increase the number of
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eosinophils
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neutrophils
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lymphocytes
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monocytes
Questão 24
Questão
What is a blood clot that is moving through the body called?
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embolism
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fibrosis
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heparin
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thrombosis
Questão 25
Questão
What is the primary function of hemoglobin?
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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
Questão 26
Questão
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
Questão 27
Questão
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]
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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