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| 1 | |
The largest percentage of plasma is |
| | A) | proteins. |
| | B) | ions. |
| | C) | nutrients. |
| | D) | water. |
| | E) | waste products. |
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| 2 | |
The most important function of albumin in the plasma is |
| | A) | to destroy foreign substances. |
| | B) | to maintain osmotic pressure. |
| | C) | blood clotting. |
| | D) | transport other substances. |
| | E) | for acid-base balance. |
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| 3 | |
All of the formed elements of the blood are derived from |
| | A) | erythrocytes. |
| | B) | leukocytes. |
| | C) | platelets. |
| | D) | stem cells. |
| | E) | neutrophils. |
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| 4 | |
Hemoglobin molecules |
| | A) | each contain 2 heme groups and 2 globins. |
| | B) | bind to and transport most of the carbon dioxide in the blood. |
| | C) | contain iron atoms. |
| | D) | can each carry one oxygen molecule. |
| | E) | are broken down in the red bone marrow. |
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| 5 | |
Erythrocyte production |
| | A) | is stimulated by erythropoietin. |
| | B) | requires folate, B12, and iron. |
| | C) | is stimulated by low O2 levels in the blood. |
| | D) | occurs in red bone marrow. |
| | E) | all of these |
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| 6 | |
The two leukocytes that are most important for phagocytizing microorganisms and foreign substances are |
| | A) | basophils and eosinophils. |
| | B) | neutrophils and macrophages. |
| | C) | basophils and neutrophils. |
| | D) | lymphocytes and monocytes. |
| | E) | eosinophils and neutrophils. |
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| 7 | |
What are the leukocytes that produce antibodies and other chemicals? |
| | A) | basophils |
| | B) | eosinophils |
| | C) | lymphocytes |
| | D) | monocytes |
| | E) | neutrophils |
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| 8 | |
The leukocytes that release histamine and other chemicals that promote inflammation are |
| | A) | basophils |
| | B) | eosinophils |
| | C) | lymphocytes |
| | D) | monocytes |
| | E) | neutrophils |
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| 9 | |
Which of these steps is NOT a part of platelet plug formation? |
| | A) | Integrins on the surface of the platelets adhere to collagen. |
| | B) | Platelets release ADP and thromboxanes. |
| | C) | Prothrombinase is released by smooth muscle cells. |
| | D) | More platelets are activated and release ADP and thromboxanes. |
| | E) | Activated platelets are connected to each other by fibrinogen. |
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| 10 | |
Given these molecules: 1. fibrin 2. fibrinogen 3. prothrombin 4. thrombin, Choose the arrangement that lists the molecules in the order they are formed during clot formation. |
| | A) | 1,2,3,4 |
| | B) | 2,1,3,4 |
| | C) | 3,2,1,4 |
| | D) | 3,4,2,1 |
| | E) | 4,3,2,1 |
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| 11 | |
Which of these is NOT required for clot formation? |
| | A) | calcium ions |
| | B) | clotting factors |
| | C) | plasmin |
| | D) | platelets |
| | E) | vitamin K |
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| 12 | |
Anticoagulants found in the blood include |
| | A) | plasmin. |
| | B) | vitamin K. |
| | C) | antithrombin. |
| | D) | heparin. |
| | E) | both c and d |
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| 13 | |
Type A blood |
| | A) | has type A antibodies. |
| | B) | could be safely donated to someone with type O blood. |
| | C) | has only the B antigen. |
| | D) | would cause a transfusion reaction if donated to someone with type B blood. |
| | E) | could receive blood from someone with type AB blood. |
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| 14 | |
Which of these statements concerning hemolytic disease of the newborn (HDN) is true? |
| | A) | The condition occurs with a Rh+ mother and a Rh- baby. |
| | B) | The condition only occurs with a second (and later) Rh+ baby. |
| | C) | Antibodies from the baby destroy erythrocytes in the mother. |
| | D) | To prevent HDN, RhoGAM is given to the baby after it is born. |
| | E) | Most people in the U.S. are Rh-, so problems with HDN are rare. |
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| 15 | |
Which of these tests could indicate polycythemia? |
| | A) | RBC (red blood cell count) |
| | B) | WBC (white blood cell count) |
| | C) | white blood cell differential count |
| | D) | platelet count |
| | E) | prothrombin time |
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| 16 | |
Blood is a type of ________ tissue. |
| | A) | epithelial |
| | B) | nervous |
| | C) | connective |
| | D) | muscular |
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| 17 | |
Classifying formed elements of the blood based upon their appearance in stained preparations categorizes neutrophils, basophils, and eosinophils as ___________ and lymphocytes and monocytes as ____________. |
| | A) | red blood cells, granulocytes |
| | B) | agranulocytes, granulocytes |
| | C) | granulocytes, agranulocytes |
| | D) | granulocytes, red blood cells |
| | E) | red blood cells, agranulocytes |
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| 18 | |
The liquid component of blood with the clotting factors removed is the |
| | A) | serum. |
| | B) | plasma. |
| | C) | lymph. |
| | D) | thromboplastin. |
| | E) | fibrinogen. |
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