click below
click below
Normal Size Small Size show me how
Hematology 1
Hematology in Practice - Chapter 2
Question | Answer |
---|---|
What is the average M:E ratio for normal adult bone marrow? | 4:1 |
The key organs involved in extramedullary hematopoiesis include the: | liver and spleen |
What assays is the best test to assess the bone marrow's response to anemic stress? | reticulocyte count |
Antibody-coated red cells that have their antibodies stripped away in the spleen usually reappear in the circulation as: | sperocytes |
A peripheral blood smear indicator of ineffective bone marrow response to anemia is: | a lack of polychromasia |
A patient with the following values-- RBC = 4.01 x 10^12/L, Hgb = 12.5 g/dL, and Hct = 37.2% -- will most likely have which of the following RBC indices? | MCV = 92.8 fL, MCH = 31.2 pg, MCHC = 33.6% |
The hormone responsible for red blood cell development in the bone marrow is: | Erythropoietin |
What site is the most preferable site for bone marrow aspiration and biopsy in adults? | Iliac Crest |
A patient's hemoglobin is 12.3 g/dL. On the peripheral smear, the red cells appear normochromic, normocytic. The hematocrit value that correlates with these data is: | 37% = 12.3 x 3 = 36.9 (round up) |
A Wright- stained smear of a patient with an elevated reticulocyte count should show: | Polychromasia |
When hematopoiesis occurs in the liver in an adult, it is called: | Extramedullary |
During midfetal life, the primary source of blood cells is the: | liver |
The CBC parameter that gives insight as to the amount of anisocytosis present in a specimen is: | RDW |
Patients with moderate anemias (7 to 10 g/dL) may be asymptomatic. | True |
What are the organs of hematopoiesis in fetal life? | liver and spleen |
How does the bone marrow respond to anemic stress? | Production is expanded, and red blood cells are released to the circulation prematurely |
What chemical substances are responsible for differentiation and replication of the pluripotent stem cell? | Cytokines |
A hormone released from the kidney that is unique for erythroid regeneration is: | Erythropoietin |
What is the most stable parameter of the CBC? | MCV |
What one of the red blood cell indices reflects the concentration of hemoglobin per individual red blood cell? | MCHC |
What formula indicates the correlation check between hemoglobin and hematocrit? | Hgb x 3 = Hct |
What CBC parameters may provide an indication of anemia before he MCV indicates an overt size change? | RDW |
What test is the most effective means of assessing red blood cell generation in response to anemia? | Reticulocyte count |