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WorksheetsIntroduction to Hematological System and Blood Functions
Total questions: 56
Worksheet time: 31mins
Which component is the clear, yellow, protein‑rich fluid portion of blood?
Plasma
Erythrocytes
Leukocytes
Platelets
A patient with reduced red blood cells will primarily have impaired (a) .
A febrile patient shows elevated white blood cells. Choose the best explanation using blood functions.
Immune protection against infection
Regulation of body temperature only
Enhanced clot formation and repair
Transport of hormones exclusively
Which site is the primary location for blood cell formation and maturation in adults?
Spleen parenchyma
Liver sinusoids
Bone marrow
Thymic cortex
Fill in the blank: The normal red blood cell count is approximately (a) million per mm3.
A patient’s erythrocytes show altered shape and membrane composition. Which immediate physiologic consequence is most likely?
Enhanced antibody production
Impaired gas diffusion across membranes
Increased clotting factor synthesis
Accelerated lymphocyte maturation
Which statement best defines hematocrit (Hct) in a complete blood count?
Volume of plasma excluding leukocytes
Volume of blood composed of erythrocytes
Percentage of hemoglobin within red cells
Number of red cells per milliliter
A patient has a severe deficiency of hemoglobin. Which outcome is most likely if this condition is not corrected?
Improved carbon dioxide buffering capacity
Death due to inadequate oxygen delivery
Enhanced platelet aggregation during injury
Increased hematocrit despite anemia
Which structural feature enables one hemoglobin molecule to transport oxygen effectively?
Two heme groups without iron centers
Four globin chains with iron-free heme
Four heme groups each binding oxygen
Single globin chain carrying four oxygens
What is the primary role of erythropoietin in red blood cell regulation?
Enable hemoglobin to transport oxygen
Carry carbon dioxide from tissues to lungs
Decrease red blood cell production
Stimulate red blood cell production
Which white blood cell type is most abundant in circulation and primarily destroys bacteria through phagocytosis?
Neutrophils, most abundant, phagocytose bacteria
Eosinophils, allergy related, combat histamine
Basophils, rare cells, release inflammatory mediators
Monocytes, tissue residents, differentiate to macrophages
Lymphocytes, adaptive cells, produce specific antibodies
Which scenario would most likely cause an increase in eosinophil count?
Acute bacterial pneumonia with high fever
Seasonal allergic rhinitis with pruritus
Chronic alcoholism with malnutrition
Severe burns after radiation exposure
Early HIV infection with lymphopenia
A patient undergoing chemotherapy presents with decreased neutrophils and recurrent infections. Which interpretation best explains the lab finding?
Cytotoxic therapy suppresses neutrophil production
Allergic reaction increases eosinophil dominance
Alcohol use elevates basophils in circulation
Corticosteroid excess elevates monocyte levels
Viral illness expands lymphocyte percentages
Which hormone primarily regulates platelet (thrombocyte) production?
Erythropoietin from renal cortex
Thrombopoietin from liver
Cortisol from adrenal cortex
Vasopressin from posterior pituitary
A patient has a small vascular injury. What is the immediate platelet response depicted in the micrograph of circulating platelets?
Release fibrin to seal wound
Collect, adhere, form temporary plug
Differentiate into neutrophils rapidly
Store in spleen until needed
In the diagram showing plasma composition, which component makes up the largest proportion of plasma by volume?
Proteins about eight percent
Water around ninety percent
Electrolytes roughly two percent
Gases less than one percent
Using the diagram, identify the primary plasma proteins listed and select the option that correctly groups them together.
Albumin, globulin, fibrinogen
Hemoglobin, myosin, actin
Insulin, glucagon, cortisol
Sodium, potassium, chloride
Fill in the blank: The spleen’s red pulp primarily functions in (a) .
Which laboratory test primarily monitors the intrinsic coagulation pathway depicted in the diagram?
Prothrombin time (PT) measurement
Partial thromboplastin time (PTT) assessment
International normalized ratio (INR) calculation
Bleeding time (BT) estimation
According to the diagram, which sequence correctly represents the transition within the common pathway after Factor Xa forms?
Prothrombin to thrombin to fibrinogen
Thrombin to prothrombin to fibrin polymer
Fibrinogen to thrombin to prothrombin
Prothrombin to fibrinogen to thrombin
A patient with suspected clotting factor deficiency presents after minor trauma. Which finding most directly supports this diagnosis?
Easy bruising and cutaneous hematomas with minor trauma
Bleeding gums and prolonged bleeding after minor cuts
Enhanced platelet aggregation with increased RBC clumping
Fibrin threads forming quickly to improve wound healing
Fill in the blank: During the acute inflammatory response, increased capillary (a) allows neutrophils to exit the bloodstream and reach injured tissue.
Which patient symptom most directly suggests a hematological bleeding tendency during history taking?
Intermittent tingling in fingertips after exercise
Easy bruising with minor bumps and scrapes
Occasional warmth in hands on cold days
Brief dizziness only after standing quickly
A patient with cholelithiasis develops prolonged bleeding after minor procedures. What is the most plausible mechanism?
Reduced bile flow impairs vitamin K absorption
Gallstones directly destroy circulating platelets
Gallbladder inflammation increases fibrin production
Biliary pain suppresses bone marrow thrombopoiesis
During medication history, which combination requires the most caution for bleeding risk and why?
Aspirin with warfarin due to dual antithrombotic effects
Heparin with short-course antibiotics due to marrow suppression
Vitamin supplements with enoxaparin due to clot enhancement
Plavix with herbs because herbs always increase clotting
Which respiratory finding most directly indicates compromised gas exchange during a hematological assessment?
Irregular respiratory rhythm without desaturation
Normal oxygen saturation at rest and exertion
Shortness of breath with stable oxygen saturation
Decreased oxygen saturation level on pulse oximetry
A patient with anemia presents with fatigue and dizziness. Plan the initial cardiovascular assessment step to evaluate cardiac compensation.
Measure systolic BP for possible lower readings
Palpate peripheral pulses for bounding quality
Order an echocardiogram to assess valve structure
Start oxygen therapy without auscultation
A positive Coombs test most directly indicates the presence of what on red blood cells?
(a)
Low serum ferritin levels most strongly suggest which clinical scenario?
Iron deficiency or chronic gastrointestinal bleeding
Alcoholic liver disease causing iron overload
Hemochromatosis with excess body iron storage
Hodgkin's disease increasing ferritin production
Which test primarily evaluates the extrinsic coagulation pathway?
Partial thromboplastin time (PTT)
Bleeding time assessment
Prothrombin time (PT)
Platelet aggregation study
Another name for a white blood cell is
erythrocyte
leukocyte
thrombocyte
hemacyte
What is this?
Neutrophil
Eosinophil
Basophil
Lymphocyte
Monocyte
Hematopoiesis is the function of the:
integumentary system
nervous system
endocrine system
skeletal system
Study of the physiology of the blood.
(a)
The disease known as malaria may result in a fever, a decrease in red blood cells, and an enlarged liver and spleen. These symptoms are evidence of
a disruption of homeostasis
a decrease in allergic reactions
an increased number of cell organelles
hormone destruction
Which of these pictures shows an erythrocyte?
What is bleeding diathesis?
Excessive clot formation
Excessive bleeding
Internal bleeding
All of these
Which of the following types of hemoglobin's is not normally found in human being
Hb F
Hb A
Hb A2
Hb G
What is plasma?
only white blood cells
only red blood cells
fluid part of blood
hemoglobin
Which component makes up 1% of the blood?
Which statement correctly describes the activities of the components of human blood shown in the diagram?
Both A and B function in immune responses, and C transports oxygen
A, B, and C are able to synthesize hemoglobin
Both B and C provide immunity, and A transports nutrients
A transports oxygen, B starts clots, and C functions in immune response to fight infections
What percentage of plasma is composed of water?
100%
90%
45%
55%
The fluid portion of blood that carries blood cells, glucose, proteins, fats, and wastes throughout the body.
red blood cells
white blood cells
plasma
platelets
What does the plasma carry to the cells of the body?
Check all that apply.
oxygen
carbon dioxide
nutrients
waste
All of the following are examples of white blood cells EXCEPT
Killer T cells
Supporter T cells
Macrophage
Vaccine
B Cell
What does this picture show?
Plasma tranfusion
Blood clotting
Cellular respiration
Protection against disease
Your white blood cells are part of your _______ line of defense
first
second
third
A substance on the surface of red blood cells that can trigger the production of antibodies
agglutinates
antigens
anemia
Rh Factor
white blood cells which are the part of our immune system detect viruses in our body they kill the antigen or viruses by antibodies.
antibiotics which are the part of our immune system detect viruses in our body they kill the antigen.
What is the role of memory cells in the immune system?
To remember and quickly respond to pathogens the body has previously encountered
To store information about the body's cells
To produce antibodies continuously
To memorize the genetic code of pathogens
