UAMS HEMATOLOGY EXAM #1
2025 QUESTIONS AND ANSWERS
What is hematology? - ....ANSWER ...-The study of blood cell formation, destruction,
maturation, and number of blood cells which can vary with disease or infection.
What is the most common specimen of hematology? - ....ANSWER ...-Blood, that may be
clotted or anticoagulated with EDTA, heparin, or sodium citrate.
What are the types of normal blood cells? - ....ANSWER ...-RBCs or erythrocytes, platelets
or thrombocytes (PLT), WBCs or leukocytes, monocytes, lymphocytes, and granulocytes which
include banded or segmented neutrophils, basophils, and eosinophils.
What is CBC and what does it count? - ....ANSWER ...-Complete blood count. RBCs,
WBCs, platelets, hemoglobin, and hematocrit.
What does MCV stand for? MCH? MCHC? What causes MCH and MCHC to be increased or
decreased? - ....ANSWER ...-Mean cell volume measures the size of RBCs. Mean cell
hemoglobin measures the weight of hemoglobin in RBCs. Mean cell hemoglobin content
measures the average concentration of hemoglobin within RBCs. MCH and MCHC are
increased with macrocytic anemia and decreased with microcytic anemia.
What is white cell differential? (diff) - ....ANSWER ...-It categorizes cells in a 100-cell
differential based on their maturity levels, to determine if a disease or infection is present.
...COPYRIGHT ©️ 2025, ALL RIGHTS RESERVED..... 100% PASS RATE 1
, What are the organs of the RES and what is their function? - ....ANSWER ...-Spleen, liver,
thymus, lymph nodes, and bone marrow. The RES is a network of cells within these tissues that
help with the formation and destruction of RBCs to fight infection and prevent bleeding, the
metabolism of iron to give to RBCs to carry oxygen through hemaglobin, inflammation, and
immunity.
What is one of the largest organs in the body and where is it found? Is the site of active bone
marrow always the same? - ....ANSWER ...-Bone marrow, found within the cavities of
cortical bones where the trabecular bone is also found. In utero and at birth, most bones contain
red bone marrow. At age 7, sites of bone marrow begin to decrease and are restricted to
proximal long bones, vertebrate, skull, sternum, ribs, and pelvis. Adults have 50:50 ratio of red to
yellow bone marrow.
What are the types of bone marrow? What is the composition of red bone marrow? -
....ANSWER ...-There are two types of bone marrow. Red that is actively producing RBCs,
and yellow that is inactive, mainly composed of fat cells. Red bone marrow is composed of
extravascular cords that contain all blood cell lineages, stem cells, progenitor cells, adventitial
cells, and macrophages. The cords are semi liquid and wedged between sinuses, supported by
trabeculae.
How does red bone marrow receive blood supply? - ....ANSWER ...-Periosteal arteries that
wrap around the central vein supply blood. The periosteal arteries branch out to form capillaries
and sinuses which hook up to larger veins to return the blood to circulation.
How are cells released from the bone marrow? What are measures the body can take if RBCs
aren't able to be supplied fast enough? - ....ANSWER ...-The cells are released as the body
needs them. RBCs are kept at a steady rate. Adventitial cells forming a discontinous line along
the sinus will retract allowing the RBCs to exit into circulation.
...COPYRIGHT ©️ 2025, ALL RIGHTS RESERVED..... 100% PASS RATE 2
2025 QUESTIONS AND ANSWERS
What is hematology? - ....ANSWER ...-The study of blood cell formation, destruction,
maturation, and number of blood cells which can vary with disease or infection.
What is the most common specimen of hematology? - ....ANSWER ...-Blood, that may be
clotted or anticoagulated with EDTA, heparin, or sodium citrate.
What are the types of normal blood cells? - ....ANSWER ...-RBCs or erythrocytes, platelets
or thrombocytes (PLT), WBCs or leukocytes, monocytes, lymphocytes, and granulocytes which
include banded or segmented neutrophils, basophils, and eosinophils.
What is CBC and what does it count? - ....ANSWER ...-Complete blood count. RBCs,
WBCs, platelets, hemoglobin, and hematocrit.
What does MCV stand for? MCH? MCHC? What causes MCH and MCHC to be increased or
decreased? - ....ANSWER ...-Mean cell volume measures the size of RBCs. Mean cell
hemoglobin measures the weight of hemoglobin in RBCs. Mean cell hemoglobin content
measures the average concentration of hemoglobin within RBCs. MCH and MCHC are
increased with macrocytic anemia and decreased with microcytic anemia.
What is white cell differential? (diff) - ....ANSWER ...-It categorizes cells in a 100-cell
differential based on their maturity levels, to determine if a disease or infection is present.
...COPYRIGHT ©️ 2025, ALL RIGHTS RESERVED..... 100% PASS RATE 1
, What are the organs of the RES and what is their function? - ....ANSWER ...-Spleen, liver,
thymus, lymph nodes, and bone marrow. The RES is a network of cells within these tissues that
help with the formation and destruction of RBCs to fight infection and prevent bleeding, the
metabolism of iron to give to RBCs to carry oxygen through hemaglobin, inflammation, and
immunity.
What is one of the largest organs in the body and where is it found? Is the site of active bone
marrow always the same? - ....ANSWER ...-Bone marrow, found within the cavities of
cortical bones where the trabecular bone is also found. In utero and at birth, most bones contain
red bone marrow. At age 7, sites of bone marrow begin to decrease and are restricted to
proximal long bones, vertebrate, skull, sternum, ribs, and pelvis. Adults have 50:50 ratio of red to
yellow bone marrow.
What are the types of bone marrow? What is the composition of red bone marrow? -
....ANSWER ...-There are two types of bone marrow. Red that is actively producing RBCs,
and yellow that is inactive, mainly composed of fat cells. Red bone marrow is composed of
extravascular cords that contain all blood cell lineages, stem cells, progenitor cells, adventitial
cells, and macrophages. The cords are semi liquid and wedged between sinuses, supported by
trabeculae.
How does red bone marrow receive blood supply? - ....ANSWER ...-Periosteal arteries that
wrap around the central vein supply blood. The periosteal arteries branch out to form capillaries
and sinuses which hook up to larger veins to return the blood to circulation.
How are cells released from the bone marrow? What are measures the body can take if RBCs
aren't able to be supplied fast enough? - ....ANSWER ...-The cells are released as the body
needs them. RBCs are kept at a steady rate. Adventitial cells forming a discontinous line along
the sinus will retract allowing the RBCs to exit into circulation.
...COPYRIGHT ©️ 2025, ALL RIGHTS RESERVED..... 100% PASS RATE 2
