#1
What does the term 'hemoglobin' refer to in hematology?
Iron-rich protein in red blood cells
ExplanationHemoglobin is a protein found in red blood cells that carries oxygen.
#2
Which of the following is a common abbreviation for a condition characterized by a low red blood cell count?
RBC
ExplanationRBC stands for Red Blood Cell, a common abbreviation used in medical contexts.
#3
Which blood cell type is primarily responsible for immune defense and fighting infections?
White blood cells
ExplanationWhite blood cells play a key role in the body's immune response, combating infections and foreign substances.
#4
What is the term for an abnormal increase in the number of white blood cells?
Leukocytosis
ExplanationLeukocytosis refers to an elevated white blood cell count, often indicating infection or inflammation.
#5
Which type of anemia is characterized by a deficiency of vitamin B12?
Pernicious anemia
ExplanationPernicious anemia is caused by a deficiency of vitamin B12, which is essential for the production of red blood cells.
#6
What term is used to describe the process of blood cell formation?
Hematopoiesis
ExplanationHematopoiesis is the process by which blood cells are formed in the body.
#7
Which of the following is a common blood clotting factor?
Factor V
ExplanationFactor V is one of the clotting factors involved in the blood coagulation process.
#8
Which protein is crucial for the formation of a stable blood clot?
Fibrinogen
ExplanationFibrinogen is a protein that is converted into fibrin during the blood clotting process, forming a stable clot.
#9
In the context of blood types, what does the 'Rh' in Rh factor stand for?
Rhesus
ExplanationThe 'Rh' in Rh factor stands for Rhesus, referring to the Rhesus monkey where the factor was first identified.
#10
Which of the following conditions is characterized by the abnormal multiplication of plasma cells in the bone marrow?
Multiple myeloma
ExplanationMultiple myeloma is a cancer of plasma cells, which are a type of white blood cell, leading to bone marrow tumors.
#11
What is the medical term for a decrease in the number of platelets in the blood?
Thrombopenia
ExplanationThrombopenia refers to a low platelet count in the blood, which can lead to bleeding disorders.
#12
What is the term for the process of breaking down red blood cells and releasing hemoglobin?
Hemolysis
ExplanationHemolysis is the process by which red blood cells are destroyed, releasing hemoglobin into the bloodstream.
#13
What is the medical term for a hereditary disorder that results in abnormal hemoglobin production, causing distorted red blood cells?
Sickle cell anemia
ExplanationSickle cell anemia is a genetic disorder causing abnormal hemoglobin, leading to misshapen red blood cells and health problems.
#14
In the context of blood transfusions, what is the universal blood donor type?
Type O
ExplanationType O blood lacks A and B antigens on its surface, making it compatible with all blood types as a universal donor.
#15
In the context of blood typing, which antigen does type B blood have on its surface?
B antigen
ExplanationType B blood has B antigens on its surface, which determine its blood type and compatibility with other blood types.