UAMS Hematology Exam 1 Questions with Correct Answers Latest Update 2025/2026
RES includes what 5 organs? - Answers Spleen, liver, thymus, bone marrow, lymph nodes
What does RES stand for? - Answers Reticuloendothelial system
Where is the primary site of hematopoiesis? - Answers Bone marrow
What is the ratio for yellow and red bone marrow? - Answers 50:50
Where is bone marrow located? - Answers proximal ends of long bones, sternum, iliac pelvic
crest
Where is the best location to obtain bone marrow? - Answers iliac pelvic crest
Where do megakaryocytes lie in the bone marrow? - Answers close to the endothelial cells for
easy release
Where do erythrocytic cells lie in the bone marrow? - Answers close to the endothelial cells in a
"bunch of grapes" formation
Where do leukocytes lie in the bone marrow? - Answers they begin in the core and slowly make
their way to the cord lining
Which organ is involved in RBC circulation? - Answers spleen
Which granulocyte is the last to undergo mitosis? - Answers myelocyte
What is margination? - Answers the accumulation and adhesion of leukocytes to the epithelial
cells of blood vessel walls at the site of injury in early stages of inflammation
What is diapedesis? - Answers the outward passage of White Blood Cells through intact vessel
walls.
Erythrocyte maturation sequence - Answers 1. Pronormoblast / Rubriblast
2. Basophilic Normoblast / Prorubricyte
3. Polychromatic Normoblast / Rubricyte
4. Orthochromic Normoblast / Metarubricyte
5. Polychromatic Erythrocyte / Reticulocyte
6. Erythrocyte
Immature cells - Answers large, high N:C, fine nucleus
Mature cells - Answers smaller, low N:C, condensed nucleus
, Where do you count WBC's on a hemacytometer? - Answers 4 large corner squares
Where do you count RBC's on a hemacytometer? - Answers 4 small corner squares of the
middle large square
Where do you count PLT's on a hemacytometer? - Answers entire large center square
What percent of RBC's are removed daily from circulation? - Answers 1%
What element is reused in our cells? - Answers iron
When should peripheral blood smears be made? - Answers preferably within 3-4 hours
What happens if a peripheral blood smear is made after 5-6 hours? - Answers echinocytes and
pyknotic cells
What is erythroid hyperplasia? - Answers increase in the formation of RBCs
What is intramedullary hemolysis? - Answers cell destruction occurring inside the bone marrow
What is extramedullary hematopoiesis? - Answers cell formation occurring outside the bone
marrow
What is the first cell to not have nucleoli? - Answers myelocyte
If greater than how many NRBCs should you correct the WBC count? - Answers 5
Polychromasia is observed in what stain? - Answers Wright's Geisma stain
Reticulocytes are observed in what stain? - Answers New Methylene Blue stain
Reference range for neutrophils - Answers 50-70%
Reference range for lymphocytes - Answers 18-42%
Reference range for monocytes - Answers 2-11%
Reference range for bands - Answers up to 5%
Reference range for eosinophils - Answers up to 3%
Reference range for basophils - Answers up to 2%
Reference range for RBC - Answers 4.2-6 x 10^6/ul
Reference range for WBC - Answers 3-10.6 x 10^3
Reference range for PLT - Answers 150-450 x 10^3
What does the sweep flow vacuum do? - Answers causes cells to pass through the instrument
RES includes what 5 organs? - Answers Spleen, liver, thymus, bone marrow, lymph nodes
What does RES stand for? - Answers Reticuloendothelial system
Where is the primary site of hematopoiesis? - Answers Bone marrow
What is the ratio for yellow and red bone marrow? - Answers 50:50
Where is bone marrow located? - Answers proximal ends of long bones, sternum, iliac pelvic
crest
Where is the best location to obtain bone marrow? - Answers iliac pelvic crest
Where do megakaryocytes lie in the bone marrow? - Answers close to the endothelial cells for
easy release
Where do erythrocytic cells lie in the bone marrow? - Answers close to the endothelial cells in a
"bunch of grapes" formation
Where do leukocytes lie in the bone marrow? - Answers they begin in the core and slowly make
their way to the cord lining
Which organ is involved in RBC circulation? - Answers spleen
Which granulocyte is the last to undergo mitosis? - Answers myelocyte
What is margination? - Answers the accumulation and adhesion of leukocytes to the epithelial
cells of blood vessel walls at the site of injury in early stages of inflammation
What is diapedesis? - Answers the outward passage of White Blood Cells through intact vessel
walls.
Erythrocyte maturation sequence - Answers 1. Pronormoblast / Rubriblast
2. Basophilic Normoblast / Prorubricyte
3. Polychromatic Normoblast / Rubricyte
4. Orthochromic Normoblast / Metarubricyte
5. Polychromatic Erythrocyte / Reticulocyte
6. Erythrocyte
Immature cells - Answers large, high N:C, fine nucleus
Mature cells - Answers smaller, low N:C, condensed nucleus
, Where do you count WBC's on a hemacytometer? - Answers 4 large corner squares
Where do you count RBC's on a hemacytometer? - Answers 4 small corner squares of the
middle large square
Where do you count PLT's on a hemacytometer? - Answers entire large center square
What percent of RBC's are removed daily from circulation? - Answers 1%
What element is reused in our cells? - Answers iron
When should peripheral blood smears be made? - Answers preferably within 3-4 hours
What happens if a peripheral blood smear is made after 5-6 hours? - Answers echinocytes and
pyknotic cells
What is erythroid hyperplasia? - Answers increase in the formation of RBCs
What is intramedullary hemolysis? - Answers cell destruction occurring inside the bone marrow
What is extramedullary hematopoiesis? - Answers cell formation occurring outside the bone
marrow
What is the first cell to not have nucleoli? - Answers myelocyte
If greater than how many NRBCs should you correct the WBC count? - Answers 5
Polychromasia is observed in what stain? - Answers Wright's Geisma stain
Reticulocytes are observed in what stain? - Answers New Methylene Blue stain
Reference range for neutrophils - Answers 50-70%
Reference range for lymphocytes - Answers 18-42%
Reference range for monocytes - Answers 2-11%
Reference range for bands - Answers up to 5%
Reference range for eosinophils - Answers up to 3%
Reference range for basophils - Answers up to 2%
Reference range for RBC - Answers 4.2-6 x 10^6/ul
Reference range for WBC - Answers 3-10.6 x 10^3
Reference range for PLT - Answers 150-450 x 10^3
What does the sweep flow vacuum do? - Answers causes cells to pass through the instrument
