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Hematology 1

Hematology in Practice - Chapter 9

QuestionAnswer
Lymphocyte concentrations in peripheral blood are greatest during what age interval? Young Child (1 to 4 years) or immediately after birth (look at table 9.3)
The "marginating pool" of neutrophils is located: On the blood vessel walls
The CBC results for a 3-month-old child are as follows: WBC 9.5 x 10^9/L Differential RBC 3.4 x 10^12/L Segmented neutrophils 25% Hgb 6.7 g/dL Lymphocytes 75% Hct 25% The absolute lymphocyte count in this patient would be: 7.1 x 10^9/L 9.5 x .75 = 7.125
What CD markers is more appropriately associated with the myelocyte? CD45, CD33, CD13
One of the primary glands responsible for lymphocyte origination in the infant is the: Thymus gland
An adult has a total white count of 4.0 x 10^9/L. The differential count is as follows: Segmented neutrophils 25% Lymphocytes 65% Bands 5% Monocytes 5% If the normal values for absolute lymphocyte count are 1.2 to 3.4 x 10^9/L, which of the following is true? There is a relative lymphocytosis.
The initial appearance of specific granulation in the granulocytic series is predominantly seen in the: Myelocyte
The amount of time a granulocyte spends in the circulation before migrating into the tissues is normally: 8 hours and/or 48 hours
In automated hematology, what is the definition of the delta check? Comparison to previous value
All of the following are features of the lymphatic system: Blood filtration, antibody generation, and lymphopoiesis
A feature NOT part of the lymphatic system: Stimulation of the kidney by EPO
Which white blood cell is slightly larger than an erythrocyte, has a small amount of blue cytoplasm, and a large, round nucleus that dominates the cell? Lymphocyte
Which white blood is the size of 3 - 5 erythrocytes, has pale colored granules, a nucleus that is pinched at one or more points, and can be vaculated? Nuetrophil (segmented)
All of the following are functions of macrophages in the bone marrow: Store iron, secrete cytokines, phagocytize senescent cells
This is NOT a function of macrophages in the bone marrow: activate adipose cells
Kupffer cells, found in the liver, are: macrophages
Apoptosis is: programmed cell death
What cell is not a product of the CFU-GEMM? lymphocyte
The N:C ratio in the myeloblast is: 6:1
The plasma cell is responsible for: Humoral immunity
What cell becomes a plasma cell at its endstage of development? Mature B Cell
The spleen harbors approximately _____ of the white blood cell population. One-third
The primary function of lymphocytes is immunologic. True
The primary lymphoid organs are the: Bone marrow and thymus
What feature distinguishes a monocyte from a lymphocyte? Abundant gray-blue cytoplasm
In which stage of neutrophilic maturation are specific secondary granules first seen? Myelocyte
Which CD marker is specific for monocytes? CD14
Which subpopulation of T cells alters the cell membrane? T cytotoxic
Created by: Megan Hohenberg