MSN 570 ADVANCED PATHOPHYSIOLOGY MIDTERM
EXAM AND STUDY GUIDE NEWEST 2026 TEST BANK|
COMPLETE 250 REAL EXAM QUESTIONS AND
CORRECT VERIFIED ANSWERS/ GRADED A+| MSN
570 MID -TERM EXAM REVIEW (BRAND NEW!!)
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.
pg. 1
,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.
What is the major difference between Type 2 and Type 3
hypersensitivity responses? - ANSWER - In Type 2 responses,
antibodies bind to antigens on cell surfaces, while in Type 3 responses,
antibodies bind to antigens in body fluids and circulate to tissues.
What is a prototype disease associated with Type 3 hypersensitivity? -
ANSWER - Systemic Lupus Erythematosus (SLE) is a prototype disease
associated with Type 3 hypersensitivity.
pg. 2
, What are common symptoms of Systemic Lupus Erythematosus (SLE)?
- ANSWER - Symptoms include fatigue, fever, joint pain, a butterfly
rash on the face, kidney involvement (proteinuria, hematuria), and
serositis (pleuritis or pericarditis).
What is serum sickness? - ANSWER - Serum sickness is an immune-
complex hypersensitivity reaction that presents with fever, rash,
generalized joint pain, and localized swelling.
What is the sequence of events in a Type 3 hypersensitivity reaction? -
ANSWER - 1. Antibodies bind to antigens 2. Immune complexes form
3. Complexes deposit in blood vessels or tissue 4. Activation of
complement 5. Inflammatory response at the site of deposit 6. Release of
lysosomal enzymes and chemical mediators 7. Tissue damage.
What are the key features of Type 4 hypersensitivity reactions? -
ANSWER - Type 4 hypersensitivity reactions are delayed, cell-mediated
responses mediated by T-lymphocytes and macrophages.
What occurs when T-cells encounter an antigen in Type 4
hypersensitivity? - ANSWER - T-cells are activated and move to the area
of the antigen, sometimes forming a granuloma if they cannot eliminate
the antigen.
What characterizes a Type 4 hypersensitivity reaction? - ANSWER - A
delayed onset, epidermal blistering rash characterizes a Type 4 reaction.
What are the prototype diseases associated with Type 4 hypersensitivity?
- ANSWER - Prototype diseases include Contact Dermatitis, Poison Ivy,
pg. 3
EXAM AND STUDY GUIDE NEWEST 2026 TEST BANK|
COMPLETE 250 REAL EXAM QUESTIONS AND
CORRECT VERIFIED ANSWERS/ GRADED A+| MSN
570 MID -TERM EXAM REVIEW (BRAND NEW!!)
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.
pg. 1
,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.
What is the major difference between Type 2 and Type 3
hypersensitivity responses? - ANSWER - In Type 2 responses,
antibodies bind to antigens on cell surfaces, while in Type 3 responses,
antibodies bind to antigens in body fluids and circulate to tissues.
What is a prototype disease associated with Type 3 hypersensitivity? -
ANSWER - Systemic Lupus Erythematosus (SLE) is a prototype disease
associated with Type 3 hypersensitivity.
pg. 2
, What are common symptoms of Systemic Lupus Erythematosus (SLE)?
- ANSWER - Symptoms include fatigue, fever, joint pain, a butterfly
rash on the face, kidney involvement (proteinuria, hematuria), and
serositis (pleuritis or pericarditis).
What is serum sickness? - ANSWER - Serum sickness is an immune-
complex hypersensitivity reaction that presents with fever, rash,
generalized joint pain, and localized swelling.
What is the sequence of events in a Type 3 hypersensitivity reaction? -
ANSWER - 1. Antibodies bind to antigens 2. Immune complexes form
3. Complexes deposit in blood vessels or tissue 4. Activation of
complement 5. Inflammatory response at the site of deposit 6. Release of
lysosomal enzymes and chemical mediators 7. Tissue damage.
What are the key features of Type 4 hypersensitivity reactions? -
ANSWER - Type 4 hypersensitivity reactions are delayed, cell-mediated
responses mediated by T-lymphocytes and macrophages.
What occurs when T-cells encounter an antigen in Type 4
hypersensitivity? - ANSWER - T-cells are activated and move to the area
of the antigen, sometimes forming a granuloma if they cannot eliminate
the antigen.
What characterizes a Type 4 hypersensitivity reaction? - ANSWER - A
delayed onset, epidermal blistering rash characterizes a Type 4 reaction.
What are the prototype diseases associated with Type 4 hypersensitivity?
- ANSWER - Prototype diseases include Contact Dermatitis, Poison Ivy,
pg. 3
