al Exam: NR 283/ NR283 (NEW 2026/2027 Update) Pathophysiology Guide| Questions & Answers | Grade A| 100% Correct (Verified Solutions)- Chamberlain 2026/2027 | Page 1 | Passing Score: 8
CHAMBERLAIN COLLEGE OF NURSING
Final Exam: NR 283/ NR283 (NEW 2026/2027 Update)
Pathophysiology Guide| Questions & Answers | Grade A| 100%
Correct (Verified Solutions)- Chamberlain
2026/2027 Edition · Official Exam 2026/2027
75 80% N/A
QUESTIONS PASSING SCORE RECERTIFICATION
TABLE OF CONTENTS
Section 1 Cellular Adaptation and Injury Q1-Q13
Section 2 Inflammation and Immunity Q14-Q26
Section 3 Fluid, Electrolyte, and Acid-Base Disorders Q27-Q39
Section 4 Cardiovascular and Respiratory Pathophysiology Q40-Q52
Section 5 Renal and Endocrine Pathophysiology Q53-Q64
Section 6 Neurologic and Musculoskeletal Pathophysiology Q65-Q75
Instructions: Select the single best answer for each question. This exam is designed for NR283 Pathophysiology certification preparation.
Passing score: 80% (60 questions correct).
, SECTION 1 | Cellular Adaptation and Injury | Q1-Q13 | NR283 Pathophysiology 2026/2027
Q1 Question 1 of 75
Q1. A 58-year-old factory worker is exposed to chronic carbon tetrachloride and presents with
hepatic enlargement and elevated liver enzymes. Biopsy reveals cells with cleared cytoplasm
pushing nuclei to the periphery. This cellular change is best described as which type of adaptation?
A. Atrophy due to reduced metabolic demand
B. Fatty change (steatosis) with intracellular lipid accumulation
C. Hypertrophy resulting from increased functional demand
D. Metaplasia with replacement of one cell type by another
Correct Answer: B
Rationale:
Chronic carbon tetrachloride exposure impairs hepatic lipid metabolism, leading to intracellular lipid accumulation
known as fatty change or steatosis, where lipid vacuoles push the nucleus peripherally. Atrophy involves cell shrinkage,
hypertrophy involves enlargement without lipid, and metaplasia involves replacement of one differentiated cell type by
another.
Q2 Question 2 of 75
Q2. A 42-year-old woman with severe iron-deficiency anemia is found to have a thin, concave
deformity of her fingernails. The underlying cellular mechanism responsible for this finding involves
which process?
A. Coagulative necrosis of the nail matrix
B. Apoptosis of keratin-producing cells
C. Impaired cellular oxygen utilization leading to tissue hypoplasia
D. Liquefactive necrosis of the nail bed
Correct Answer: C
Rationale:
Iron deficiency reduces hemoglobin synthesis, decreasing oxygen delivery to tissues. The resulting chronic tissue
hypoxia leads to impaired cellular metabolism and hypoplasia of the nail matrix, producing koilonychia. Coagulative and
liquefactive necrosis involve cell death, not hypoplastic changes, and apoptosis is programmed cell death rather than
an adaptive response to hypoxia.
NR283 Pathophysiology — 2026/2027 | Passing Score: 80% | Page 2 of 29
, Q3 Question 3 of 75
Q3. A 65-year-old man with a 40-pack-year smoking history undergoes bronchoscopy, which reveals
replacement of normal ciliated columnar epithelium with stratified squamous epithelium in the
trachea. Which cellular adaptation has occurred?
A. Dysplasia with disorganized cell growth
B. Hyperplasia with increased cell number
C. Metaplasia with substitution of one epithelial type for another
D. Anaplasia with loss of cellular differentiation
Correct Answer: C
Rationale:
Chronic irritation from smoking triggers a metaplastic change in which ciliated columnar epithelium is replaced by
stratified squamous epithelium better able to withstand the insult. Dysplasia involves disordered growth, hyperplasia
increases cell number without changing cell type, and anaplasia represents loss of differentiation typical of malignancy.
Q4 Question 4 of 75
Q4. A 50-year-old woman presents with a breast lump, and histological examination reveals cells
with large, hyperchromatic nuclei, irregular nuclear membranes, and prominent nucleoli. These
findings are most characteristic of which process?
A. Normal cellular hypertrophy
B. Benign hyperplasia
C. Cellular atrophy
D. Dysplastic cellular changes
Correct Answer: D
Rationale:
Hyperchromatic nuclei, irregular nuclear membranes, and prominent nucleoli are hallmark features of dysplasia,
representing disordered cellular development. Hypertrophy involves enlargement without nuclear irregularity, benign
hyperplasia shows orderly cell proliferation, and atrophy involves cell shrinkage rather than nuclear abnormalities.
Q5 Question 5 of 75
Q5. A 35-year-old man suffers a myocardial infarction, and cardiac biopsy 48 hours later shows
coagulative necrosis. Which microscopic feature is most characteristic of this type of necrosis?
A. Complete enzymatic digestion of tissue with liquefaction
B. Preservation of tissue architecture with loss of nuclei
C. Caseating granulomatous inflammation
D. Extensive dystrophic calcification of dead tissue
Correct Answer: B
Rationale:
Coagulative necrosis preserves the tissue architecture while the cells lose their nuclei, producing ghost-like outlines.
Liquefactive necrosis involves enzymatic digestion, caseating necrosis is associated with granulomatous inflammation,
and dystrophic calcification is a secondary change rather than a primary feature of coagulative necrosis.
NR283 Pathophysiology — 2026/2027 | Passing Score: 80% | Page 3 of 29
CHAMBERLAIN COLLEGE OF NURSING
Final Exam: NR 283/ NR283 (NEW 2026/2027 Update)
Pathophysiology Guide| Questions & Answers | Grade A| 100%
Correct (Verified Solutions)- Chamberlain
2026/2027 Edition · Official Exam 2026/2027
75 80% N/A
QUESTIONS PASSING SCORE RECERTIFICATION
TABLE OF CONTENTS
Section 1 Cellular Adaptation and Injury Q1-Q13
Section 2 Inflammation and Immunity Q14-Q26
Section 3 Fluid, Electrolyte, and Acid-Base Disorders Q27-Q39
Section 4 Cardiovascular and Respiratory Pathophysiology Q40-Q52
Section 5 Renal and Endocrine Pathophysiology Q53-Q64
Section 6 Neurologic and Musculoskeletal Pathophysiology Q65-Q75
Instructions: Select the single best answer for each question. This exam is designed for NR283 Pathophysiology certification preparation.
Passing score: 80% (60 questions correct).
, SECTION 1 | Cellular Adaptation and Injury | Q1-Q13 | NR283 Pathophysiology 2026/2027
Q1 Question 1 of 75
Q1. A 58-year-old factory worker is exposed to chronic carbon tetrachloride and presents with
hepatic enlargement and elevated liver enzymes. Biopsy reveals cells with cleared cytoplasm
pushing nuclei to the periphery. This cellular change is best described as which type of adaptation?
A. Atrophy due to reduced metabolic demand
B. Fatty change (steatosis) with intracellular lipid accumulation
C. Hypertrophy resulting from increased functional demand
D. Metaplasia with replacement of one cell type by another
Correct Answer: B
Rationale:
Chronic carbon tetrachloride exposure impairs hepatic lipid metabolism, leading to intracellular lipid accumulation
known as fatty change or steatosis, where lipid vacuoles push the nucleus peripherally. Atrophy involves cell shrinkage,
hypertrophy involves enlargement without lipid, and metaplasia involves replacement of one differentiated cell type by
another.
Q2 Question 2 of 75
Q2. A 42-year-old woman with severe iron-deficiency anemia is found to have a thin, concave
deformity of her fingernails. The underlying cellular mechanism responsible for this finding involves
which process?
A. Coagulative necrosis of the nail matrix
B. Apoptosis of keratin-producing cells
C. Impaired cellular oxygen utilization leading to tissue hypoplasia
D. Liquefactive necrosis of the nail bed
Correct Answer: C
Rationale:
Iron deficiency reduces hemoglobin synthesis, decreasing oxygen delivery to tissues. The resulting chronic tissue
hypoxia leads to impaired cellular metabolism and hypoplasia of the nail matrix, producing koilonychia. Coagulative and
liquefactive necrosis involve cell death, not hypoplastic changes, and apoptosis is programmed cell death rather than
an adaptive response to hypoxia.
NR283 Pathophysiology — 2026/2027 | Passing Score: 80% | Page 2 of 29
, Q3 Question 3 of 75
Q3. A 65-year-old man with a 40-pack-year smoking history undergoes bronchoscopy, which reveals
replacement of normal ciliated columnar epithelium with stratified squamous epithelium in the
trachea. Which cellular adaptation has occurred?
A. Dysplasia with disorganized cell growth
B. Hyperplasia with increased cell number
C. Metaplasia with substitution of one epithelial type for another
D. Anaplasia with loss of cellular differentiation
Correct Answer: C
Rationale:
Chronic irritation from smoking triggers a metaplastic change in which ciliated columnar epithelium is replaced by
stratified squamous epithelium better able to withstand the insult. Dysplasia involves disordered growth, hyperplasia
increases cell number without changing cell type, and anaplasia represents loss of differentiation typical of malignancy.
Q4 Question 4 of 75
Q4. A 50-year-old woman presents with a breast lump, and histological examination reveals cells
with large, hyperchromatic nuclei, irregular nuclear membranes, and prominent nucleoli. These
findings are most characteristic of which process?
A. Normal cellular hypertrophy
B. Benign hyperplasia
C. Cellular atrophy
D. Dysplastic cellular changes
Correct Answer: D
Rationale:
Hyperchromatic nuclei, irregular nuclear membranes, and prominent nucleoli are hallmark features of dysplasia,
representing disordered cellular development. Hypertrophy involves enlargement without nuclear irregularity, benign
hyperplasia shows orderly cell proliferation, and atrophy involves cell shrinkage rather than nuclear abnormalities.
Q5 Question 5 of 75
Q5. A 35-year-old man suffers a myocardial infarction, and cardiac biopsy 48 hours later shows
coagulative necrosis. Which microscopic feature is most characteristic of this type of necrosis?
A. Complete enzymatic digestion of tissue with liquefaction
B. Preservation of tissue architecture with loss of nuclei
C. Caseating granulomatous inflammation
D. Extensive dystrophic calcification of dead tissue
Correct Answer: B
Rationale:
Coagulative necrosis preserves the tissue architecture while the cells lose their nuclei, producing ghost-like outlines.
Liquefactive necrosis involves enzymatic digestion, caseating necrosis is associated with granulomatous inflammation,
and dystrophic calcification is a secondary change rather than a primary feature of coagulative necrosis.
NR283 Pathophysiology — 2026/2027 | Passing Score: 80% | Page 3 of 29
