NR 507 Advanced Pathophysiology Week 4 Midterm Examplify Proctored Exam Study Guide

NR-507 Week 4 Midterm Exam 2026 Complete Actual Exam Question 1- 100
Screenshots NR 507 Advanced Pathophysiology NR 507 Midterm Examplify
Proctored Exam 100 Questions and Answers




Course Title and Number: NR-507 Advanced Pathophysiology
 Exam Title: Week 4 Midterm Examplify Proctored Assessment

 Exam Date: 2026 - 2027 Academic Year

 Total Questions: 100 Questions and Answers with Complete Actual Exam
Screenshots

Instructions:
1. Read each question carefully and Answer All Questions.

2. Use the provided exam platform or answer sheet to record responses.

, 3. Ensure all 100 screenshot-based questions are completed prior to submission.

4. Adhere to the strict time limit enforced by the proctored software environment.

Good Luck..........!
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NR-507 Week 4 Midterm Exam Advanced Pathophysiology
Examplify Proctored Mock Exam Questions and Answers
Question 1
Which cellular adaptation represents a decrease in cell size and functional
capacity due to disuse or decreased blood flow?
 Hypertrophy
 Hyperplasia
 Atrophy
 Metaplasia
Rationale: Atrophy is the shrinkage in cellular size caused by loss of
substance, often resulting from decreased workload, denervation, or
ischemia. Hypertrophy involves an increase in cell size, hyperplasia is an
increase in cell number, and metaplasia is a reversible change from one adult
cell type to another.
Question 2
What is the primary mechanism of cellular injury caused by hypoxia?
 Failure of the ATP-driven sodium-potassium pump
 Intracellular dehydration
 Increased intracellular pH
 Ribosome detachment from the Golgi apparatus
Rationale: Hypoxia causes a decrease in mitochondrial oxidative
phosphorylation, leading to reduced ATP production. Without ATP, the

, sodium-potassium membrane pump fails, causing sodium and water to flood
into the cell, resulting in cellular swelling.
Question 3
Which type of necrosis is most commonly associated with hypoxic injury in
the central nervous system?
 Coagulative necrosis
 Liquefactive necrosis
 Caseous necrosis
 Fat necrosis
Rationale: Liquefactive necrosis occurs in the brain because ischemic injury
to neurons and glial cells triggers the release of powerful hydrolytic enzymes
that digest the dead tissue into a liquid mass.
Question 4
A patient undergoes genetic testing and is found to have a karyotype
showing 45,X. Which clinical diagnosis matches this finding?
 Klinefelter syndrome
 Down syndrome
 Turner syndrome
 Cri du chat syndrome
Rationale: Turner syndrome is characterized by monosomy of the X
chromosome (45,X). Klinefelter syndrome is 47,XXY, and Down syndrome is
Trisomy 21.
Question 5
Which characteristic differentiates benign tumors from malignant tumors?
 High mitotic index
 Absence of a fibrous capsule
 Well-differentiated cells
 Ability to metastasize
Rationale: Benign tumors consist of well-differentiated cells that closely
resemble their tissue of origin and remain localized. Malignant tumors display
poor differentiation (anaplasia), rapid growth, and metastatic potential.
Question 6
During the inflammatory response, which chemical mediator is primarily
responsible for increasing vascular permeability and causing immediate
vasodilation?
 Leukotrienes
 Interleukin-1
 Histamine
 Prostaglandins
Rationale: Histamine is released rapidly by mast cells during tissue injury or
IgE-mediated reactions, leading to immediate vasodilation and increased
capillary permeability.
Question 7

, Which immunoglobulin class provides the primary immune defense against
helminthic parasites and mediates Type I hypersensitivity reactions?
 IgG
 IgM
 IgA
 IgE
Rationale: IgE binds to mast cells and basophils. When triggered by allergens
or parasitic antigens, it induces degranulation, releasing inflammatory
mediators like histamine.
Question 8
An individual experiences an acute myocardial infarction. Which biomarker
elevates earliest in the serum to indicate myocardial injury?
 LDH (Lactate dehydrogenase)
 Troponin I
 BNP (Brain natriuretic peptide)
 C-reactive protein
Rationale: Cardiac Troponin I and T are highly specific structural proteins of
cardiac muscle that release into the bloodstream within 3 to 4 hours following
myocardial injury.
Question 9
What type of hypersensitivity reaction is systemic lupus erythematosus (SLE)
classified as?
 Type I (Immediate)
 Type II (Antibody-mediated)
 Type III (Immune complex-mediated)
 Type IV (Cell-mediated)
Rationale: SLE is a classic Type III hypersensitivity reaction where antigen-
antibody complexes deposit in tissue walls (e.g., kidneys, joints, skin),
activating the complement cascade and causing widespread inflammation.
Question 10
Which statement correctly describes the clinical presentation of stable
angina?
 Chest pain that occurs unpredictably at rest.
 Myocardial ischemia brought on by exertion and relieved by rest or
nitroglycerin.
 Permanent necrosis of the subendocardial myocardium.
 ST-segment elevation on a 12-lead ECG.
Rationale: Stable angina involves predictable chest discomfort during
periods of increased myocardial oxygen demand (like exercise) that resolves
when the demand decreases or through vasodilators like nitroglycerin.
Question 11
Which physiological change is a hallmark of the alarm stage of the General
Adaptation Syndrome (GAS)?
 Increased parasympathetic activity