front 1 1) Plasma is closest in composition to A) urine. B) isotonic saline solution. C) sterile water. D) CSF. E) interstitial fluid. | back 1 E) interstitial fluid. |
front 2 2) The percent fraction of formed elements relative to whole blood is the A) viscosity. B) specific gravity. C) packed volume. D) hematocrit. E) differential cell count. | back 2 D) hematocrit. |
front 3 3) Which of the following is a function of the blood? A) transport of nutrients and wastes B) transport of body heat C) transport of gases D) defense against toxins and pathogens E) All of the answers are correct. | back 3 E) All of the answers are correct. |
front 4 4) Which of the following statements about blood is false? A) Blood contains buffers that control pH. B) The normal pH of blood is 6.8 to 7.0. C) Blood is more viscous than water. D) Blood is about 55 percent plasma. E) Cells in blood comprise the formed elements. | back 4 B) The normal pH of blood is 6.8 to 7.0. |
front 5 5) Formed elements make up about what percentage of blood? A) 55 percent B) 30 percent C) 60 percent D) 45 percent E) 20 percent | back 5 D) 45 percent |
front 6 6) The combination of plasma and formed elements is called A) serum. B) lymph. C) whole blood. D) extracellular fluid. E) packed blood. | back 6 C) whole blood. |
front 7 7) Whole blood for testing in a clinical laboratory is usually collected from A) the heart. B) a superficial artery. C) a superficial vein. D) a capillary. E) an arteriole. | back 7 C) a superficial vein. |
front 8 8) When checking the efficiency of gas exchange, it may be necessary to draw a blood sample from A) the heart. B) the lungs. C) an artery. D) a vein. E) capillaries. | back 8 C) an artery. |
front 9 9) Consider these results from a blood lab test. Which value is most likely abnormal? A) RBCs–5.2 million/µl B) platelets–280,000/µl C) leukocytes–8600/µl D) hemoglobin–10.7 g/100 ml E) hematocrit–44 percent | back 9 D) hemoglobin–10.7 g/100 ml |
front 10 10) Each of the following is a characteristic of whole blood, except a A) temperature of approximately 38 degrees Celsius. B) viscosity about the same as water. C) pH of 7.4. D) built-in system for clotting. E) deep red color from hemoglobin. | back 10 B) viscosity about the same as water. |
front 11 11) The total volume of blood in the body of a 76-kg man is approximately ________ liters. A) 10 B) 6 to 8 C) 5.3 D) 4.4 E) 3.8 | back 11 C) 5.3 |
front 12 12) The most abundant component of plasma is A) ions. B) proteins. C) water. D) gases. E) nutrients. | back 12 C) water. |
front 13 13) A person who has a low blood volume is said to be A) hypovolemic. B) hypervolemic. C) normovolemic. D) isovolemic. E) antivolemic. | back 13 A) hypovolemic. |
front 14 14) The chief difference between plasma and interstitial fluid involves the A) concentration of water. B) concentration of electrolytes. C) concentration of nitrogen wastes. D) concentration of proteins. | back 14 D) concentration of proteins. |
front 15 15) A typical adult hematocrit is A) 85. B) 75. C) 65. D) 45. E) 25. | back 15 D) 45. |
front 16 16) Which of these is not one of the formed elements of blood? A) RBCs B) platelets C) antibodies D) lymphocytes E) basophils | back 16 C) antibodies |
front 17 17) Plasma composes about ________ percent of whole blood and water composes ________ percent of the plasma volume. A) 55; 92 B) 92; 7 C) 92; 55 D) 45; 55 E) 50; 50 | back 17 A) 55; 92 |
front 18 18) A hematocrit provides information on A) blood type. B) clotting factors. C) formed elements abundance. D) plasma composition. E) sedimentation rate. | back 18 C) formed elements abundance. |
front 19 19) You are caring for an adult patient who weighs 48 kg. What would her approximate blood volume be? A) 6.6 L B) 6.0 L C) 5.6 L D) 4.8 L E) 3.8 L | back 19 E) 3.8 L |
front 20 20) Thyroid-binding globulin is an example of which kind of plasma protein? A) metalloprotein B) steroid-binding C) hormone-binding D) apolipoprotein E) transport albumin | back 20 C) hormone-binding |
front 21 21) Transferrin is an example of which kind of plasma protein? A) metalloprotein B) steroid-binding protein C) hormone-binding protein D) apolipoprotein E) transport albumin | back 21 A) metalloprotein |