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WorksheetsQuiz
Total questions: 50
Worksheet time: 25mins
To count an RBCs, Med. Tech carefully pipettes an aliquot of whole blood and mixed with?
0.60% normal saline
0.70% normal saline
0.85% normal saline
0.100% normal saline
A glass pipette designed to provide proper dilution during RBC counting?
Mechanical Pipette
Thoma Pipette
Serological Pipette
Mohr Pipette
It contains RNA and display a slightly blue-gray color when stained with Wright stain and exceed the 6 to 8 micrometer average diameter .
Erythrocyte
Leukocyte
Thrombocyte
Reticulocyte
The three numerical results needed to compute manually the RBC indices.
RBC count, Platelet count, WBC count
RBC count, Hematocrit, Hemoglobin
RBC count, WBC count, Hct
RBC count, Platelet count, Hemoglobin
WBC arises during bacterial infection?
Lymphocytes
Neutrophils
Eosinophils
Monocyte
An increase WBC count?
Neutrophilia
Leukocytosis
Lymphocytosis
Monocytosis
Described platelets as petite plaques?
Anton Van Leeuwenhook
Athanisius Kircher
Guilio Bizzozero
James Wright
Cellular and plasma-based mechanisms that seals wounds, repairs vessel walls, and maintains vascular patency.
Erythrocyte
Leukocyte
Thrombocyte
None of the above.
Normal value of reticulocyte in neonates?
1-2%
2-6%
0.5-1.5%
0.8-2%
Granulocytic cell that rises during parasitic infection.
Lymphocytes
Neutrophils
Eosinophils
Monocyte
Additional Hematology Procedure used to detect spherocytes, in hereditary spherocytosis.
Erythrocyte Sedimentation Rate
Osmotic Fragility Test
G6PD assay
Hb electrophoresis
Additional Hematology Procedures used to detect inflammation?
Erythrocyte Sedimentation Rate
Osmotic Fragility Test
G6PD assay
Hb electrophoresis
Additional Hematologic Procedure, test to detect inherited RBC enzyme deficiency.
Erythrocyte Sedimentation Rate
Osmotic Fragility Test
G6PD assay
Hb electrophoresis
Is a broad concept which encompasses pre-analytical, analytical and post analytical variables.
Quality control
Quality assessment
Quality assurance
Quality system
Processes document assay validity, accuracy, and precision.
Quality control
Quality assurance
Quality system
Quality management
The nucleus is composed largely of:
RNA
DNA
Ribosomes
Glycoproteins
Protein synthesis occurs in the:
Nucleus
Mitochondria
Ribosomes
Golgi complex
Function of the cell membrane include all the following except:
A. Interchange of substances
B. Cell-to-cell recognition
C. Cellular identification through receptors
D. Lipid production
E. A & D
Euchromatin function as the:
Site of microtubule production
Genetically active DNA
Support structure for nucleoli
Attachment site for centrioles
The cell cycle is regulated by:
Cyclins and CDKs
Protooncogenes
Apoptosis
Growth factors
The transition from the G1 to S stage of the cell cycle is regulated by:
Cyclin B/ CDK1 complex
Cyclin A/ CDK2 complex
Cyclin D1
Cyclin E/ CDK2 complex
Apoptosis is morphologically identified by:
Cellular swelling
Nuclear condensation
Rupture of the cytoplasm
Rupture of the nucleus
The shape of a cell is maintained by which of the following?
Microtubules
Spindle fibers
Ribosomes
Centrioles
The organelle involved in packaging and trafficking of cellular products is the:
Nucleus
Golgi Complex
Mitochondria
Rough Endoplasmic Reticulum
The "control center" of the cell is the:
Nucleus
Cytoplasm
Membrane
Microtubular System
The normal sequence of blood cell development is
Yolk sac - red bone marrow – liver and spleen
Yolk sac – thymus – liver and spleen – bone marrow
Yolk sac – liver and spleen – red bone marrow
Liver and spleen – yolk sac – red bone marrow
As a blood cell matures, the overall cell diameter in most cases
Increases
Decreases
Remains the same
All but one are included in the cellular activities of hematopoiesis
Cell death
Proliferation
Differentiation
Maturation
How soon after fertilization of the ovum does the hematopoiesis begin?
Around the 16th day of maturation before fertilization
Around the 16th day of maturation after fertilization
Around the 19th day of maturation before fertilization
Around the 19th day of maturation after fertilization
They performed the culture experiments using 7.5 day mouse embryos lacking the yolk sac and demonstrated the no hematopoietic cells grew in the fetal liver.
Weissman and colleagues
Metcalf and Moore
Dr. Peter Maslak and colleagues
Till and McCulloch
Gower 1 is composed of what polypeptide chains
2 alpha and epsilon
2 alpha and beta
2 zeta and epsilon
2 zeta and gamma
Hb A1 is composed of what polypeptide chains
2 alpha and epsilon
2 alpha and beta
2 zeta and epsilon
2 zeta and gamma
When does the hepatic phase of hematopoiesis begin?
4-8 weeks gestation
End of 2 weeks gestation
5-7 weeks gestation
1-2 weeks after birth
During infancy and early childhood, all bones in the body contain red and yellow marrow.
True
False
Red marrow is capable of reverting back to yellow marrow.
True
False
Osteoclast resemble megakaryocytes.
True
False
Periosteal arteries provide nutrients for the osseous bone.
True
False
The spleen of a healthy individual contains about 250 ml of blood.
True
False
Pitting is when splenic macrophages remove damage membrane of a RBC
True
False
What is the largest lymphoid organ In the body?
Liver
Spleen
Thymus
Bone marrow
They conducted a series of test which colonies of HSCs were seen in the irradiated spleens of mice.
Weissman and colleagues
Metcalf and Moore
Dr. Peter Maslak and colleagues
Till and McCulloch
Asymmetric division is when two daughter cells don’t follow the same path, one goes back to stem cell pool and the other follow the path of differentiation.
True
False
CFU-G forms what cell line?
Neutrophil
Myeloid to neutrophil
Myeloid to eosinophil
Granulocyte
Extrinsic regulation involves differentiation and proliferation signals from specialized niches.
True
False
The presence of nucleoli is associated with
Immature cells
All young cells, except myeloblasts
Only erythroblast
Disintegrating cells
The identification and origin of HSCs can be determined by immunogenotypic analysis using flow cytometry.
True
False
Mitotic Index is approximately
1-3 %
1-2 %
2-3%
3-4 %
Interleukin is a growth factor
True
False
It gives rise to the earliest identifiable colony of RBCs
BFU-E
CFU-GEMM
Both
None of the above
All of the following are primary cell source of G-CSF except
Endothelial cells
Placenta
Monocyte
None of the above
All of the above
