MLT-MLS UAMS Hematology Exam 2
*Q&A* (100% Correct) 2024/2025
|VERIFIED|
What is the primary function of erythrocytes in the bloodstream?
The main role of erythrocytes is to transport oxygen from the lungs to tissues and return carbon
dioxide from the tissues back to the lungs.
What f...
MLT-MLS UAMS Hematology Exam 2
*Q&A* (100% Correct) 2024/2025
|VERIFIED|
What is the primary function of erythrocytes in the bloodstream?
The main role of erythrocytes is to transport oxygen from the lungs to tissues and return carbon
dioxide from the tissues back to the lungs.
What factor is essential for the production of normal hemoglobin?
Iron is crucial for synthesizing hemoglobin and ensuring adequate oxygen transport.
Which laboratory test is primarily used to assess the coagulation status of a patient?
The prothrombin time (PT) test is commonly utilized to evaluate coagulation function.
What condition is characterized by an increased number of immature white blood cells in the blood?
Acute leukemia is identified by a significant increase in immature white blood cells, often referred
to as blasts.
Which cell type is primarily responsible for the immune response in the body?
Lymphocytes are the key players in the immune response, defending against pathogens.
What is the primary cause of iron-deficiency anemia?
The leading cause of iron-deficiency anemia is inadequate dietary iron intake or absorption.
What does the mean corpuscular volume (MCV) measure in a complete blood count (CBC)?
MCV indicates the average size of red blood cells, helping classify types of anemia.
Which disease is associated with a deficiency of factor VIII?
1
, Hemophilia A is caused by a deficiency in factor VIII, leading to bleeding complications.
What is the role of thrombocytes in hemostasis?
Thrombocytes, or platelets, are vital for clot formation and the prevention of bleeding.
What type of anemia is characterized by the destruction of red blood cells due to an autoimmune
process?
Autoimmune hemolytic anemia involves the immune system attacking and destroying red blood
cells.
Which component of the blood is primarily responsible for transporting nutrients and waste products?
Plasma serves as the liquid medium that carries nutrients, hormones, and waste products
throughout the body.
What laboratory test evaluates the intrinsic and common pathways of coagulation?
The activated partial thromboplastin time (aPTT) test assesses the intrinsic and common
pathways of coagulation.
Which hematological disorder is characterized by a deficiency in the production of all blood cell types?
Aplastic anemia is marked by the insufficient production of red blood cells, white blood cells, and
platelets.
What is the primary mechanism behind sickle cell disease?
Sickle cell disease arises from a genetic mutation that causes abnormal hemoglobin (hemoglobin
S), leading to distorted red blood cells.
Which test is used to determine the presence of sickle-shaped red blood cells?
A sickle cell test, often using a blood smear or solubility test, identifies sickle-shaped red blood
cells in circulation.
What are the major causes of thrombocytopenia?
2
, Thrombocytopenia can result from decreased platelet production, increased destruction, or
sequestration in the spleen.
Which type of white blood cell is elevated in allergic reactions?
Eosinophils are typically elevated in allergic responses and parasitic infections.
What is the typical appearance of red blood cells in iron-deficiency anemia?
In iron-deficiency anemia, red blood cells often appear hypochromic (pale) and microcytic
(smaller than normal).
Which vitamin deficiency can lead to megaloblastic anemia?
A deficiency in vitamin B12 or folate can cause megaloblastic anemia, characterized by enlarged
red blood cells.
What is the significance of a reticulocyte count in diagnosing anemia?
A reticulocyte count helps assess bone marrow activity and the body’s response to anemia by
measuring the number of immature red blood cells.
What is the function of neutrophils in the immune system?
Neutrophils play a crucial role in the innate immune response by engulfing and destroying
bacteria and fungi.
What is a common treatment option for patients with chronic lymphocytic leukemia (CLL)?
Chemotherapy or targeted therapies, such as monoclonal antibodies, are common treatments for
CLL.
What type of blood disorder is characterized by increased levels of bilirubin?
Hemolytic anemia often leads to elevated bilirubin levels due to the breakdown of red blood
cells.
What is the primary purpose of performing a bone marrow biopsy?
3
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