NUR 2063 RASMUSSEN PATHOPHYSIOLOGY EXAM 1 QUESTIONS & ANSWERS 2026-2027 | COMPREHENSIVE … EXAM
P R O F E S S I O N A L P R A C T I C E M AT E R I A L S
NUR 2063 Rasmussen
Pathophysiology Exam 1 Questions &
Answers 2026-2027 | Comprehensive
Study Guide | Verified Practice Test
(Rationales)
Verified Answers Exam Ready With Rationales
120 QUESTIONS
DOCUMENT OVERVIEW
This document contains 120 verified questions with correct answers and detailed rationales covering
pathophysiology. Each question is paired with an explanation of the underlying concepts, making it suitable
for exam preparation, course review, and certification study. It serves as a comprehensive resource for
students to reinforce their understanding of key pathophysiological principles.
CONTENTS
01 • Immunity Concepts 02 • Electrolyte Values 03 • Inflammation and Cancer
04 • Pathophysiology Basics 05 • Prevention Levels 06 • Adaptation and Stress
07 • Fluid and Electrolyte Balance 08 • Electrolyte Conditions 09 • Hormonal Regulation
10
• Antibodies and Immune Response
E XA M Q U EST I O N S
Q1 QUESTION 1 OF 120
Page 1
,passive immunity
CORRECT ANSWER
Transfer of performed antibodies against a specific antigen from protected or immunized individual to an unprotected or non-immunized individual
RATIONALE
Transfer of pre-formed antibodies provides immediate, temporary protection against specific pathogens, a hallmark of passive immunity. This mechanism
contrasts with active immunity, where the host's immune system generates its own antibodies in response to infection or vaccination.
Q2 QUESTION 2 OF 120
Examples of passive immunity
CORRECT ANSWER
IgA in breast milk, maternal IgG crossing placenta, antitoxin, serotherapy (direct injection of antibodies)
RATIONALE
Passive immunity involves the transfer of pre-formed antibodies from one individual to another, providing immediate, but temporary, protection against
pathogens; examples include maternal IgG crossing the placenta and IgA present in breast milk, which confer immunity to the infant. Additionally, antitoxins
and serotherapy deliver specific antibodies to combat toxins or infections directly.
Q3 QUESTION 3 OF 120
causes of edema
CORRECT ANSWER
increased capillary hydrostatic pressure, loss of plasma proteins, obstruction of lymphatic circulation, increased capillary permeability
RATIONALE
Edema results from an imbalance in Starling forces, where increased capillary hydrostatic pressure or decreased plasma protein levels lead to excessive fluid
filtration into interstitial spaces, while lymphatic obstruction hinders fluid return. Additionally, increased capillary permeability allows proteins and fluid to
escape, further contributing to tissue swelling.
Q4 QUESTION 4 OF 120
Components of the Immune System
CORRECT ANSWER
(1) skin and mucous membranes; (2) the mononuclear phagocyte system; (3) the lymphoid system, including spleen, thymus gland, and lymph nodes; and
(4) bone marrow. AND B cells; T cells
RATIONALE
The immune system's effectiveness relies on its diverse components, including physical barriers like skin, the mononuclear phagocyte system for pathogen
recognition and clearance, lymphoid organs for immune cell maturation and activation, and bone marrow as the site for hematopoiesis, ensuring a robust and
adaptive immune response through B and T lymphocytes. Understanding these elements is key to grasping how the body defends against infections and
maintains homeostasis.
Page 2
, Q5 QUESTION 5 OF 120
active immunity
CORRECT ANSWER
A form of acquired immunity in which the body produces its own antibodies against disease-causing antigens.
RATIONALE
Active immunity occurs when the immune system generates its own antibodies in response to exposure to pathogens or vaccination, creating a long-lasting
defense against specific antigens. This process distinguishes active immunity from passive immunity, where antibodies are transferred from another source
without the recipient’s immune response being engaged.
Q6 QUESTION 6 OF 120
Examples of active immunity
CORRECT ANSWER
natural infection, vaccines, toxoid
RATIONALE
Active immunity develops when exposure to pathogens or antigens prompts the immune system to produce antibodies, which can occur through natural
infection or vaccination, including the use of toxoids. This adaptive immune response provides long-term protection by enabling memory cell formation that
recognizes and responds more efficiently to future infections.
Q7 QUESTION 7 OF 120
What is a hypotonic solution?
CORRECT ANSWER
the solution has a lower solute concentration than the cell so water moves into the cell causing plant cells to swell and animal cells to swell and burst
RATIONALE
A hypotonic solution has a lower solute concentration compared to the intracellular environment, resulting in water influx via osmosis, which can lead to
cellular swelling and potential lysis in animal cells, while causing turgor pressure in plant cells. This principle illustrates the osmotic behavior of cells in different
solute concentrations, essential for understanding fluid balance in biological systems.
Q8 QUESTION 8 OF 120
Hypersensitivity
CORRECT ANSWER
an exaggerated response by the immune system to a particular substance
RATIONALE
Hypersensitivity occurs when the immune system mounts an excessive response to an antigen, leading to tissue damage and clinical symptoms. This
phenomenon illustrates the principle of immune dysregulation, where normal protective mechanisms become harmful.
Page 3
, Q9 QUESTION 9 OF 120
example of hypersensitivity type 1
CORRECT ANSWER
allergic reaction
RATIONALE
Hypersensitivity type 1, or immediate hypersensitivity, occurs when IgE antibodies bind to allergens, leading to mast cell degranulation and the release of
histamines, which mediate allergic reactions. This process results in symptoms such as urticaria, anaphylaxis, or asthma exacerbation, illustrating the rapid
immune response characteristic of this hypersensitivity type.
Q10 QUESTION 10 OF 120
example of hypersensitivity type 2
CORRECT ANSWER
transfusion reactions and hemolytic disease of a newborn
RATIONALE
Hypersensitivity type 2 involves antibody-mediated destruction of target cells, as seen in transfusion reactions when mismatched blood types lead to
hemolysis, and in hemolytic disease of the newborn, where maternal antibodies attack fetal red blood cells. Both examples illustrate the mechanism of
cytotoxicity through complement activation and phagocytosis.
Q11 QUESTION 11 OF 120
Example of hypersensitivity type 3
CORRECT ANSWER
immune complex reactions
RATIONALE
Immune complex reactions occur when antigen-antibody complexes deposit in tissues, leading to inflammation and tissue damage mediated by complement
activation and leukocyte infiltration. This hypersensitivity type is characterized by the accumulation of these complexes, resulting in conditions such as
systemic lupus erythematosus and rheumatoid arthritis.
Q12 QUESTION 12 OF 120
Potassium Value normal range( intercellular cation)
CORRECT ANSWER
3.5-5.0 mEq/L
RATIONALE
0 mEq/L is critical for maintaining cellular function, including nerve conduction and muscle contraction, as it regulates resting membrane potential and
intracellular fluid balance. Deviations from this range can lead to significant cardiac and neuromuscular complications.
Page 4
P R O F E S S I O N A L P R A C T I C E M AT E R I A L S
NUR 2063 Rasmussen
Pathophysiology Exam 1 Questions &
Answers 2026-2027 | Comprehensive
Study Guide | Verified Practice Test
(Rationales)
Verified Answers Exam Ready With Rationales
120 QUESTIONS
DOCUMENT OVERVIEW
This document contains 120 verified questions with correct answers and detailed rationales covering
pathophysiology. Each question is paired with an explanation of the underlying concepts, making it suitable
for exam preparation, course review, and certification study. It serves as a comprehensive resource for
students to reinforce their understanding of key pathophysiological principles.
CONTENTS
01 • Immunity Concepts 02 • Electrolyte Values 03 • Inflammation and Cancer
04 • Pathophysiology Basics 05 • Prevention Levels 06 • Adaptation and Stress
07 • Fluid and Electrolyte Balance 08 • Electrolyte Conditions 09 • Hormonal Regulation
10
• Antibodies and Immune Response
E XA M Q U EST I O N S
Q1 QUESTION 1 OF 120
Page 1
,passive immunity
CORRECT ANSWER
Transfer of performed antibodies against a specific antigen from protected or immunized individual to an unprotected or non-immunized individual
RATIONALE
Transfer of pre-formed antibodies provides immediate, temporary protection against specific pathogens, a hallmark of passive immunity. This mechanism
contrasts with active immunity, where the host's immune system generates its own antibodies in response to infection or vaccination.
Q2 QUESTION 2 OF 120
Examples of passive immunity
CORRECT ANSWER
IgA in breast milk, maternal IgG crossing placenta, antitoxin, serotherapy (direct injection of antibodies)
RATIONALE
Passive immunity involves the transfer of pre-formed antibodies from one individual to another, providing immediate, but temporary, protection against
pathogens; examples include maternal IgG crossing the placenta and IgA present in breast milk, which confer immunity to the infant. Additionally, antitoxins
and serotherapy deliver specific antibodies to combat toxins or infections directly.
Q3 QUESTION 3 OF 120
causes of edema
CORRECT ANSWER
increased capillary hydrostatic pressure, loss of plasma proteins, obstruction of lymphatic circulation, increased capillary permeability
RATIONALE
Edema results from an imbalance in Starling forces, where increased capillary hydrostatic pressure or decreased plasma protein levels lead to excessive fluid
filtration into interstitial spaces, while lymphatic obstruction hinders fluid return. Additionally, increased capillary permeability allows proteins and fluid to
escape, further contributing to tissue swelling.
Q4 QUESTION 4 OF 120
Components of the Immune System
CORRECT ANSWER
(1) skin and mucous membranes; (2) the mononuclear phagocyte system; (3) the lymphoid system, including spleen, thymus gland, and lymph nodes; and
(4) bone marrow. AND B cells; T cells
RATIONALE
The immune system's effectiveness relies on its diverse components, including physical barriers like skin, the mononuclear phagocyte system for pathogen
recognition and clearance, lymphoid organs for immune cell maturation and activation, and bone marrow as the site for hematopoiesis, ensuring a robust and
adaptive immune response through B and T lymphocytes. Understanding these elements is key to grasping how the body defends against infections and
maintains homeostasis.
Page 2
, Q5 QUESTION 5 OF 120
active immunity
CORRECT ANSWER
A form of acquired immunity in which the body produces its own antibodies against disease-causing antigens.
RATIONALE
Active immunity occurs when the immune system generates its own antibodies in response to exposure to pathogens or vaccination, creating a long-lasting
defense against specific antigens. This process distinguishes active immunity from passive immunity, where antibodies are transferred from another source
without the recipient’s immune response being engaged.
Q6 QUESTION 6 OF 120
Examples of active immunity
CORRECT ANSWER
natural infection, vaccines, toxoid
RATIONALE
Active immunity develops when exposure to pathogens or antigens prompts the immune system to produce antibodies, which can occur through natural
infection or vaccination, including the use of toxoids. This adaptive immune response provides long-term protection by enabling memory cell formation that
recognizes and responds more efficiently to future infections.
Q7 QUESTION 7 OF 120
What is a hypotonic solution?
CORRECT ANSWER
the solution has a lower solute concentration than the cell so water moves into the cell causing plant cells to swell and animal cells to swell and burst
RATIONALE
A hypotonic solution has a lower solute concentration compared to the intracellular environment, resulting in water influx via osmosis, which can lead to
cellular swelling and potential lysis in animal cells, while causing turgor pressure in plant cells. This principle illustrates the osmotic behavior of cells in different
solute concentrations, essential for understanding fluid balance in biological systems.
Q8 QUESTION 8 OF 120
Hypersensitivity
CORRECT ANSWER
an exaggerated response by the immune system to a particular substance
RATIONALE
Hypersensitivity occurs when the immune system mounts an excessive response to an antigen, leading to tissue damage and clinical symptoms. This
phenomenon illustrates the principle of immune dysregulation, where normal protective mechanisms become harmful.
Page 3
, Q9 QUESTION 9 OF 120
example of hypersensitivity type 1
CORRECT ANSWER
allergic reaction
RATIONALE
Hypersensitivity type 1, or immediate hypersensitivity, occurs when IgE antibodies bind to allergens, leading to mast cell degranulation and the release of
histamines, which mediate allergic reactions. This process results in symptoms such as urticaria, anaphylaxis, or asthma exacerbation, illustrating the rapid
immune response characteristic of this hypersensitivity type.
Q10 QUESTION 10 OF 120
example of hypersensitivity type 2
CORRECT ANSWER
transfusion reactions and hemolytic disease of a newborn
RATIONALE
Hypersensitivity type 2 involves antibody-mediated destruction of target cells, as seen in transfusion reactions when mismatched blood types lead to
hemolysis, and in hemolytic disease of the newborn, where maternal antibodies attack fetal red blood cells. Both examples illustrate the mechanism of
cytotoxicity through complement activation and phagocytosis.
Q11 QUESTION 11 OF 120
Example of hypersensitivity type 3
CORRECT ANSWER
immune complex reactions
RATIONALE
Immune complex reactions occur when antigen-antibody complexes deposit in tissues, leading to inflammation and tissue damage mediated by complement
activation and leukocyte infiltration. This hypersensitivity type is characterized by the accumulation of these complexes, resulting in conditions such as
systemic lupus erythematosus and rheumatoid arthritis.
Q12 QUESTION 12 OF 120
Potassium Value normal range( intercellular cation)
CORRECT ANSWER
3.5-5.0 mEq/L
RATIONALE
0 mEq/L is critical for maintaining cellular function, including nerve conduction and muscle contraction, as it regulates resting membrane potential and
intracellular fluid balance. Deviations from this range can lead to significant cardiac and neuromuscular complications.
Page 4
