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36 Cards in this Set
- Front
- Back
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The function (or functions) of a hematology laboratory is (are) to: A. confirm the physician's impression of a possible hematological disorder B. establish or rule out a diagnosis C. screen for asymptomatic disorders D. all of the above |
D. all of the above |
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If a blood specimen is spilled on a laboratory bench or floor area, the first step in cleanup should be: A. wear gloves and a lab coat B. absorb blood with disposable towels C. clean with freshly prepared 1% chlorine solution D. wash with water |
B. absorb blood with disposable towels. |
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Matching 1.________Mean 2.________Range 3.________Variance 4.________Standard deviation A. The difference between the upper and lower measurements in a series of results B. The expression of the positions of each test result to the average C. The arithmetic average D. The degree to which test data vary about the average |
1. C - Mean 2. A - Range 3. D - Variance 4. B - Standard deviation |
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The coefficient of variation is the: A. sum of the squared differences from the mean B. square root of the variance from the mean C. standard deviation expressed as a percentage of the mean D. degree to which test data vary about the average |
C. standard deviation expressed as a percentage of the mean. |
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Acceptable limits of a control value must fall: A. within ±1 standard deviation of the mean B. between 1 and 2 standard deviations of the mean C. within ±2 standard deviations of the mean D. within ±3 standard deviations of the mean |
C. within ±2 standard deviations of the mean |
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Two standard deviations (2 SD) from the mean in a normal distribution curve would include: A. 99% of all values B. 95% of all values C. 75% of all values D. 68% of all values |
B. 95% of all Values |
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When the coagulation of fresh whole blood is prevented through the use of an anticagulant, the straw-colored fluid that can be separated from the cellualar elements is: A. Serum B. plasma C. whole blood D. platelets |
B. plasma |
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Which characteristic is inaccurate with respect to the anticagulant K3 EDTA? A. Removes ionized calcium (Ca2+) from fresh whole blood by the process of chelation B. Is used for most routine coagulation studies C. Is the most commonly used anticoagulant in hematology D. Is conventionally placed in lavender-stoppered evacuated tubes |
B. Is used for most routine coagulation studies |
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Heparin inhibits the clotting of fresh whole blood by neutralizing the effect of: A. platelets B. ionized calcium (Ca2+) C. fibrinogen D. thrombin |
D. thrombin |
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Matching 1. ______EDTA 2. ______Heparin 3. ______Sodium citrate 4. ______No anticoagulant A. Red B. Lavender C. Blue D. Green |
1. B - EDTA 2. D - Heparin 3. C - Sodium citrate 4. A - No anticoagulant |
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The appropriate veins for performing a routine venipuncture are the: A. cephalic, basilic, and the median cubital B. subclavian, iliac, and femoral C. brachiocephalic, jugular, and popliteal D. saphenous, suprarenal, and tibial |
A. cephalic, basilic, and median cubital |
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The bevel of the needle should be held _____ in the performances of a venipuncture. A. sideways B. upward C. downward D. in any direction |
B. upward |
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A peripheral blood smear can be prepared from: A. EDTA-anticoagulated blood within 1 hour of collection B. free-flowing capillary blood C. citrated whole blood D. both A and B |
D. both A and B |
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Indentify the following as (A) Romanowsky-type or (B) non-Romanowsky-type stains. 1. ______Wright 2. _______May-Grunwald 3. _______Giemsa 4. _______Methylen blue |
1. A - Wright 2. A - May-Grunwald 3. A - Giemsa 4. B - Methylene blue |
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The smallest organized unit of living tissue is the: A. nucleus B. cell C. organelle D. cytoplasm |
B. cell |
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Which of the following is a characteristic of osmosis? A. Requires energy (ATP) B. Movement of water molecules C. An unusual cellular activity D. Requires a carrier molecule |
B. Movement of water molecules |
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Which of the following is a characteristic of active transport? A. Requires energy (ATP) B. Movement of molecules up the concentration gradient C. Requires a carrier molecule D. All of the above |
D. All of the above |
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Phagocytosis is: A. a type of endocytosis B. the engulfment of fluid molecules C. the engulfment of particulate matter D. Both A and C |
D. Both A and C |
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Glycogen is a: A. protein B. lipid C. carbohydrate D. hormone |
C. carbohydrate |
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A cellular inclusion that represents a common storage form of iron is: A. glycogen B. vacuoles C. Auer body D. ferritin |
D. ferritin |
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The nucleus of the cell contains: A. chromatin, nucleoli, and nucleoplasm B. chromatin, nucleoli, and ribosomes C. DNA, RNA, and ribosomes D. DNA, RNA, and mitochondria |
A. chromatin, nucleoli, and nucleoplasm |
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The overall function of DNA is: A. protein and enzyme production B. control of cellular function and transmission of genetic information C. control of heterochromatin and euchromatin synthesis D. production of cellular energy and transmission of genetic information |
B. control of cellular function and transmission of genetic information |
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A chromosomal deletion is: A. loss of a pair of chromosomes B. loss of a segment of chromosome C. attachment of a piece of a chromosome D. an exchange of genetic material |
B. loss of a segment of chromosome |
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Matching 1. ______ Prophase 2. _______ Metaphase 3. _______ Anaphase 4. ______ Telophase 5. _______ Cytokinesis A. Chromosomes line up at the cell's equator B. Two identical daughter cells from C. Division of the cellular cytoplasm D. Chromatids separate and move to opposite ends of the mitotic spindle E. Chromosomes tightly coil and condense |
1. F - Prophase 2. A - Metaphase 3. D - Anaphase 4. B - Telophase 5. C - Cytokinesis |
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PCR test is useful in: A. forensic testing B. genetic testing C. disease diagnosis D. All of the above |
D. All of the above |
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The normal sequence of blood cell development is: A. yolk sac - red bone marrow - liver and spleen B. yolk sac - thymus - liver and spleen - red bone marrow C. yolk sac - liver and spleen - red bone marrow D. liver and spleen - yolk sac - red bone marrow |
C. yolk sac - liver and spleen - red bone marrow |
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The maturational sequence of the thrombocyte (platelet) is: A. Megakaryoblast - promegakaryocyte - megakaryocyte - metamegakaryocyte - thrombocyte B. Promegakaryocyte - megakaryocyte - metamegakaryocyte - thrombocyte C. megakaryoblast - promegakaryocyte - megakaryocyte - thrombocyte D. megakaryoblast - promegakaryocyte - metamegakaryocyte - thrombocyte |
C. megakaryoblast - promegakaryocyte - megakaryocyte - thrombocyte
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The cell maturation sequence of the segmented neutrophil is: A. promyelocyte - myeloblast - myelocyte - metamyelocyte - band or stab - segmented neutrophil (PMN) B. myeloblast - promyelocyte - myelocyte - metamyelocyte - band or stab - segmented neutrophil (PMN) C. monoblast - promyelocyte - myelocyte - metamyelocyte - band or stab - segmented neutrophil (PMN) D. promyelocyte - myelocyte - metamyelocyte - band or stab - segmented neutrophil (PMN) |
B. myeloblast - promyelocyte - myelocyte - metamyelocyte - band or stab - segmented neutrophil (PMN) |
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As a blood cell matures, the overall cell diameter in most cases: A. increases B. decreases C. remains the same |
B. decreases |
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As a blood cell matures, the ration of nuleus to cytoplasm (N:C) in most cases: A. increases B. decreases C. remains the same |
B. decreases |
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The chromatin pattern, in most cells, as the cell matures: A. becomes more clumped B. becomes less clumped C. remains the same |
A. becomes more clumped |
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What are the characteristics of a Segmented Neutrophil: A. Large orange granules B. An elongated and curved nucleus C. Light, sky-blue cytoplasm D. Kidney bean - shaped nucleus E. Averages approximately 56% of normal adult leukocytes in the peripheral blood |
E. Averages approximately 56% of normal adult leukocytes in the peripheral blood |
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What are the characteristics of a monocyte? A. Large orange granules B. An elongated and curved nucleus C. Light, sky-blue cytoplasm D. Kidney bean - shaped nucleus E. Averages approximately 56% of normal adult leukocytes in the peripheral blood |
D. Kidney bean - shaped nucleus |
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What are the characteristics of a Lymphocyte? A. Large orange granules B. An elongated and curved nucleus C. Light, sky-blue cytoplasm D. Kidney bean - shaped nucleus E. Averages approximately 56% of normal adult leukocytes in the peripheral blood |
C. Light, sky-blue cytoplasm |
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What are the characteristics of a Band form neutrophil? A. Large orange granules B. An elongated and curved nucleus C. Light, sky-blue cytoplasm D. Kidney bean - shaped nucleus E. Averages approximately 56% of normal adult leukocytes in the peripheral blood |
B. An elongated and curved nucleus |
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What are the characteristics of an Eosinophil? A. Large orange granules B. An elongated and curved nucleus C. Light, sky-blue cytoplasm D. Kidney bean - shaped nucleus E. Averages approximately 56% of normal adult leukocytes in the peripheral blood |
A. Large orange granules |
