NR 507 MIDTERM EXAM WEEK 5 2026 ACTUAL
TEST PAPER QUESTIONS SOLUTIONS VERIFIED
COMPLETE STUDY PACKAGE
◉ How much time is allotted for the NR507 midterm exam?
Answer: 120 minutes.
◉ When is the NR507 midterm exam available?
Answer: Starting Wednesday Week 4 at 12:01 am MT until Friday
Week 8 at 11:59 pm MT.
◉ What are the content areas covered in the NR507 midterm exam?
Answer: 1. Immunological Pathologies (Week 1) 2. Hematological
and Cardiovascular Pathologies (Week 2) 3. Pulmonary Pathologies
(Week 3) 4. Urinary System Pathologies (Week 4).
◉ What are the four types of hypersensitivity reactions?
Answer: 1. Type 1: Allergic/Anaphylactic/Atopic 2. Type 2: Cytotoxic
3. Type 3: Immune Complex 4. Type 4: Delayed.
◉ What characterizes Type 1 hypersensitivity reactions?
,Answer: Rapid release of proinflammatory mediators like histamine,
leukotrienes, prostaglandins, and cytokines in response to allergic
exposure.
◉ What are the physiological manifestations of Type 1
hypersensitivity reactions?
Answer: Vasodilation, bronchial smooth muscle contraction, and
mucus production.
◉ What is the prototype disease for Type 1 hypersensitivity?
Answer: Anaphylaxis, Allergic Rhinitis, Asthma, Food Allergies.
◉ What are the signs and symptoms of Anaphylaxis?
Answer: Rapid onset; difficulty breathing, hypotension, hives,
wheezing, angioedema, and possibly shock.
◉ What are the treatment options for Anaphylaxis?
Answer: Epinephrine (IM), airway management, oxygen and IV
fluids, antihistamines, corticosteroids.
◉ What is the mechanism behind Type 2 hypersensitivity reactions?
Answer: IgG or IgM antibodies target antigens on cells, leading to
cell destruction via complement activation or phagocytosis.
,◉ What is an example of a Type 2 hypersensitivity reaction?
Answer: Heparin-induced thrombocytopenia (HIT) and hemolytic
transfusion reactions.
◉ What are the primary effector cells in Type 2 hypersensitivity
reactions?
Answer: Macrophages.
◉ What are the signs and symptoms of Type 2 hypersensitivity
reactions?
Answer: Fatigue, pallor, jaundice, tachycardia, shortness of breath,
elevated bilirubin, low hemoglobin and hematocrit.
◉ What is the first-line treatment for Type 2 hypersensitivity
reactions?
Answer: Corticosteroids (prednisone).
◉ What is the prototype disease for Type 2 hypersensitivity?
Answer: Autoimmune Hemolytic Anemia, Grave's Disease.
◉ What is the pathophysiology of Type 3 hypersensitivity reactions?
Answer: Immune complex-mediated reactions.
, ◉ What is the role of mast cells in Type 1 hypersensitivity reactions?
Answer: They are the primary effector cells responsible for initiating
and mediating the reactions.
◉ What are common treatments for Allergic Rhinitis and Asthma?
Answer: Antihistamines (loratadine, cetirizine), inhaled
corticosteroids (fluticasone), leukotriene modifiers.
◉ What is the significance of IgE in Type 1 hypersensitivity?
Answer: It mediates the activation of mast cells and basophils,
leading to the release of histamine and other mediators.
◉ What are the common symptoms of Allergic Rhinitis?
Answer: Sneezing, nasal congestion, runny nose, itchy eyes, and
throat.
◉ What characterizes Type 3 hypersensitivity reactions?
Answer: Type 3 hypersensitivity reactions involve the formation of
immune complexes that can deposit in tissues, leading to
complement activation, inflammation, and tissue destruction.
◉ What is the mechanism of Type 3 hypersensitivity reactions?
Answer: Immune complexes (antigen-antibody) deposit in tissues,
resulting in inflammation and tissue damage.
TEST PAPER QUESTIONS SOLUTIONS VERIFIED
COMPLETE STUDY PACKAGE
◉ How much time is allotted for the NR507 midterm exam?
Answer: 120 minutes.
◉ When is the NR507 midterm exam available?
Answer: Starting Wednesday Week 4 at 12:01 am MT until Friday
Week 8 at 11:59 pm MT.
◉ What are the content areas covered in the NR507 midterm exam?
Answer: 1. Immunological Pathologies (Week 1) 2. Hematological
and Cardiovascular Pathologies (Week 2) 3. Pulmonary Pathologies
(Week 3) 4. Urinary System Pathologies (Week 4).
◉ What are the four types of hypersensitivity reactions?
Answer: 1. Type 1: Allergic/Anaphylactic/Atopic 2. Type 2: Cytotoxic
3. Type 3: Immune Complex 4. Type 4: Delayed.
◉ What characterizes Type 1 hypersensitivity reactions?
,Answer: Rapid release of proinflammatory mediators like histamine,
leukotrienes, prostaglandins, and cytokines in response to allergic
exposure.
◉ What are the physiological manifestations of Type 1
hypersensitivity reactions?
Answer: Vasodilation, bronchial smooth muscle contraction, and
mucus production.
◉ What is the prototype disease for Type 1 hypersensitivity?
Answer: Anaphylaxis, Allergic Rhinitis, Asthma, Food Allergies.
◉ What are the signs and symptoms of Anaphylaxis?
Answer: Rapid onset; difficulty breathing, hypotension, hives,
wheezing, angioedema, and possibly shock.
◉ What are the treatment options for Anaphylaxis?
Answer: Epinephrine (IM), airway management, oxygen and IV
fluids, antihistamines, corticosteroids.
◉ What is the mechanism behind Type 2 hypersensitivity reactions?
Answer: IgG or IgM antibodies target antigens on cells, leading to
cell destruction via complement activation or phagocytosis.
,◉ What is an example of a Type 2 hypersensitivity reaction?
Answer: Heparin-induced thrombocytopenia (HIT) and hemolytic
transfusion reactions.
◉ What are the primary effector cells in Type 2 hypersensitivity
reactions?
Answer: Macrophages.
◉ What are the signs and symptoms of Type 2 hypersensitivity
reactions?
Answer: Fatigue, pallor, jaundice, tachycardia, shortness of breath,
elevated bilirubin, low hemoglobin and hematocrit.
◉ What is the first-line treatment for Type 2 hypersensitivity
reactions?
Answer: Corticosteroids (prednisone).
◉ What is the prototype disease for Type 2 hypersensitivity?
Answer: Autoimmune Hemolytic Anemia, Grave's Disease.
◉ What is the pathophysiology of Type 3 hypersensitivity reactions?
Answer: Immune complex-mediated reactions.
, ◉ What is the role of mast cells in Type 1 hypersensitivity reactions?
Answer: They are the primary effector cells responsible for initiating
and mediating the reactions.
◉ What are common treatments for Allergic Rhinitis and Asthma?
Answer: Antihistamines (loratadine, cetirizine), inhaled
corticosteroids (fluticasone), leukotriene modifiers.
◉ What is the significance of IgE in Type 1 hypersensitivity?
Answer: It mediates the activation of mast cells and basophils,
leading to the release of histamine and other mediators.
◉ What are the common symptoms of Allergic Rhinitis?
Answer: Sneezing, nasal congestion, runny nose, itchy eyes, and
throat.
◉ What characterizes Type 3 hypersensitivity reactions?
Answer: Type 3 hypersensitivity reactions involve the formation of
immune complexes that can deposit in tissues, leading to
complement activation, inflammation, and tissue destruction.
◉ What is the mechanism of Type 3 hypersensitivity reactions?
Answer: Immune complexes (antigen-antibody) deposit in tissues,
resulting in inflammation and tissue damage.
