NR 507 Midterm Exam Prep:
Integrative Pathophysiology
Questions with Evidence-Based
Rationales//Instant Download Pdf
Question: Which client should the nurse practitioner (NP)
recognize as most at risk of developing iron deficiency anemia?
Answer: A 30-year-old client who donates blood every 3 months
Rationale: Regular blood donation depletes iron stores over time,
as each donation removes approximately 200-250 mg of iron.
While pregnancy increases iron demands and peptic ulcers can
cause chronic blood loss, the most significant ongoing iron loss
occurs with frequent blood donations.
Question: Hives (urticaria) are an example of which type of
hypersensitivity reaction?
Answer: Type I hypersensitivity reaction
Rationale: Urticaria is mediated by IgE antibodies binding to mast
cells, causing histamine release. This is the classic immediate
hypersensitivity response seen in allergic reactions.
,Question: Allergic contact dermatitis is an example of which
hypersensitivity reaction?
Answer: Type IV hypersensitivity reaction
Rationale: Allergic contact dermatitis is a T-cell mediated delayed
hypersensitivity response, typically occurring 48-72 hours after
exposure to the allergen. It is not antibody-mediated like Types I-
III.
Question: Which cells are considered the "first responders" of the
innate immune system?
Answer: Neutrophils
Rationale: Neutrophils are the most abundant white blood cells
and are the first to arrive at sites of infection or inflammation.
They perform phagocytosis and release antimicrobial substances.
Question: What is the function of the spleen?
Answer: Immune surveillance and response in blood; collects
antigens in blood and degrades old and damaged red blood cells
,Rationale: The spleen serves as a filter for blood, removing old
erythrocytes and pathogens while also playing a key role in
mounting immune responses to blood-borne antigens.
Question: What is the role of hemoglobin?
Answer: The molecule that delivers oxygen to the tissues
Rationale: Hemoglobin binds oxygen in the lungs and transports
it to peripheral tissues. It also carries carbon dioxide and nitric
oxide, playing roles in gas exchange and vasodilation.
Question: What is the function of the endoplasmic reticulum
(ER)?
Answer: Produces and transports proteins
Rationale: The endoplasmic reticulum is involved in protein
synthesis (rough ER) and lipid synthesis (smooth ER), as well as the
transport of these molecules within the cell.
Question: Which physiologic process will relax the detrusor
muscle?
, Answer: Activation of beta-2 (β-2) receptors by the sympathetic
nervous system
Rationale: Beta-2 receptor activation causes smooth muscle
relaxation, including the detrusor muscle of the bladder, allowing
for bladder filling and storage of urine.
Question: Which area of the brain contributes to the regulation of
urination?
Answer: Pontine micturition center
Rationale: The pontine micturition center coordinates the
relaxation of the urethral sphincter and contraction of the
detrusor muscle during voiding. It integrates signals from higher
brain centers.
Question: A client with systemic lupus erythematosus (SLE)
presents with fatigue, decreased urine output, elevated BUN and
creatinine, and proteinuria with hematuria. What is the most likely
cause of acute kidney injury?
Answer: Intrarenal (intrinsic) AKI due to lupus nephritis
Rationale: SLE commonly causes immune-complex
glomerulonephritis (lupus nephritis), leading to intrinsic renal
damage. The presence of proteinuria, hematuria, and elevated
Integrative Pathophysiology
Questions with Evidence-Based
Rationales//Instant Download Pdf
Question: Which client should the nurse practitioner (NP)
recognize as most at risk of developing iron deficiency anemia?
Answer: A 30-year-old client who donates blood every 3 months
Rationale: Regular blood donation depletes iron stores over time,
as each donation removes approximately 200-250 mg of iron.
While pregnancy increases iron demands and peptic ulcers can
cause chronic blood loss, the most significant ongoing iron loss
occurs with frequent blood donations.
Question: Hives (urticaria) are an example of which type of
hypersensitivity reaction?
Answer: Type I hypersensitivity reaction
Rationale: Urticaria is mediated by IgE antibodies binding to mast
cells, causing histamine release. This is the classic immediate
hypersensitivity response seen in allergic reactions.
,Question: Allergic contact dermatitis is an example of which
hypersensitivity reaction?
Answer: Type IV hypersensitivity reaction
Rationale: Allergic contact dermatitis is a T-cell mediated delayed
hypersensitivity response, typically occurring 48-72 hours after
exposure to the allergen. It is not antibody-mediated like Types I-
III.
Question: Which cells are considered the "first responders" of the
innate immune system?
Answer: Neutrophils
Rationale: Neutrophils are the most abundant white blood cells
and are the first to arrive at sites of infection or inflammation.
They perform phagocytosis and release antimicrobial substances.
Question: What is the function of the spleen?
Answer: Immune surveillance and response in blood; collects
antigens in blood and degrades old and damaged red blood cells
,Rationale: The spleen serves as a filter for blood, removing old
erythrocytes and pathogens while also playing a key role in
mounting immune responses to blood-borne antigens.
Question: What is the role of hemoglobin?
Answer: The molecule that delivers oxygen to the tissues
Rationale: Hemoglobin binds oxygen in the lungs and transports
it to peripheral tissues. It also carries carbon dioxide and nitric
oxide, playing roles in gas exchange and vasodilation.
Question: What is the function of the endoplasmic reticulum
(ER)?
Answer: Produces and transports proteins
Rationale: The endoplasmic reticulum is involved in protein
synthesis (rough ER) and lipid synthesis (smooth ER), as well as the
transport of these molecules within the cell.
Question: Which physiologic process will relax the detrusor
muscle?
, Answer: Activation of beta-2 (β-2) receptors by the sympathetic
nervous system
Rationale: Beta-2 receptor activation causes smooth muscle
relaxation, including the detrusor muscle of the bladder, allowing
for bladder filling and storage of urine.
Question: Which area of the brain contributes to the regulation of
urination?
Answer: Pontine micturition center
Rationale: The pontine micturition center coordinates the
relaxation of the urethral sphincter and contraction of the
detrusor muscle during voiding. It integrates signals from higher
brain centers.
Question: A client with systemic lupus erythematosus (SLE)
presents with fatigue, decreased urine output, elevated BUN and
creatinine, and proteinuria with hematuria. What is the most likely
cause of acute kidney injury?
Answer: Intrarenal (intrinsic) AKI due to lupus nephritis
Rationale: SLE commonly causes immune-complex
glomerulonephritis (lupus nephritis), leading to intrinsic renal
damage. The presence of proteinuria, hematuria, and elevated
