WKCTCS Final Study Questions
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| Lymphocytes concentration in peripheral blood are greatest during what age interval? a) Immediately after birth b) Older (40 -70 years) c) Young adults (16 - 40 years) d) Young children (1 - 4 years) | A: this is the best answer
Birth 4-40
4yrs to adult 5 - 15
Adults 4 - 11
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| The "marginating pool" of neutrophils is located: a) in the kidneys b) in the tissue c) next to marrow sinuses d) on the blood vessel walls | D: The marginating pool designates white blood cells located along the vessel endothelium, ready to migrate to a site of injury or infection. The circulating pool designates white blood cells actually in the blood stream
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| Which of the following CD markers is more appropriately associated with the myelocyte? a) CD4, CD8 b) CD33, CD13, CD14 c) CD45, CD33, CD13 d) CD19, CD22 | C
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| One of the primary glands responsible for lymphocyte origination in the infant is the a) Thymus gland b) Adrenal gland c) Thyroid gland d) Pituitary gland | A: Lymphocytes originate not only from the bone marrow, but also from the thymus, and they have a distinctive place on the hematopoietic maturation chart.
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| The initial appearance of specific granulation in the granulocytic series is predominantly seen in the: a) Promyelocyte b) Metamyelocyte c) Myelocyte d) Eosinophil | C: Differentiating characteristics: small pink-purple granules for neutophilic myelocyte, nucleus stains deeper color, granular pattern to the chromatic eccentric nucleus, with visible golgi apparatus seen as a lighter area near nucleus
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| The amount of time a granulocyte spends in the circulation before migrating into the tissues is normally: a) 8 hours b) 28 hours c) 5 days d) 20 days | B or C: WBCs perform most of their function in the tissues, and neutrophils reside here for 2 to 5 days
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| In automated hematology, what is the definition of the delta check? a) Spinning the sample for hematocrit value b) Comparison to previous value c) Flagging criteria d) Performing a manual platelet count | B
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| All of the following are features of the lymphatic system except: a) Stimulation of the kidney by EPO b) Blood filtration c) Antibody generation d) Lymphopoiesis | A: the lymphatic system plays an important role in blood filtration, fluid balance, antibody generation, and lymphopoiesis
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| There are _____ maturation stages in the neutrophil. a) 5 b) 4 c) 3 d) 6 | A: Myeloblast, Promyelocyte, myelocyte, Metamyelocyte and Segmented Neutrophil
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| The N:C ratio in a myeloblast is: a) 2:1 b) 4:1 c) 3:1 d) 5:1 e) 6:1 | The test said B
The true answer is E
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| The plasma cell is responsible for: a) Humoral immunity b) Cell mediated immunity c) Tumor suppression d) Delayed hypersensitivity | A
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| At present, most lymphocyte subpopulations are recognized by their CD markers. CD refers to: a) Codon designation b) Cluster designation (differentiation) c) Cytoplasmic designation d) Cytokine designation | B
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| What is the primary function of hemoglobin? a) Bind with free iron stores b) carry oxygen to tissues c) carry carbon dioxide to tissues d) carry oxygen to lungs | B: Hemoglobin serves to carry inspired oxygen from the lungs to tissues, and carbon dioxide from tissues back to the lungs, where it is expired
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| Which of the following lab results would you find with disseminated intravascular coagulation (DIC) but NOT with thrombotic thrombocytopenic purpura (TTP) or hemolytic uremic syndrome (HUS)? a) prolonged PT and aPTT b) Thrombocytopenia c) Schistocytes | B and C
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