Complete Study Guide with Detailed Rationales | 100% Verified | Pass Guaranteed
– A+ Graded
SECTION 1: Cellular Adaptation, Injury, & Neoplasia (Q1-Q15)
Q1: A 62-year-old male with chronic heart failure has been bedridden for 3 weeks. The
nurse notes decreased muscle mass in his lower extremities. Which cellular adaptation
BEST describes this change?
A. Hypertrophy due to increased workload
B. Atrophy due to decreased cell size from disuse [CORRECT]
C. Hyperplasia due to increased cell number
D. Metaplasia due to replacement of one cell type with another
Correct Answer: B
Rationale: Atrophy is a decrease in cell size resulting from decreased workload, disuse,
or inadequate nutrition. In this case, prolonged bed rest leads to skeletal muscle atrophy
(disuse atrophy). Hypertrophy (A) is increased cell size from increased workload.
Hyperplasia (C) is increased cell number. Metaplasia (D) is replacement of one
differentiated cell type with another, typically in response to chronic irritation. [100%
VERIFIED – Rasmussen NUR2063]
,Q2: A patient with chronic gastroesophageal reflux disease (GERD) develops Barrett's
esophagus, where normal squamous epithelium is replaced by columnar epithelium
with goblet cells. Which cellular adaptation is demonstrated?
A. Dysplasia with abnormal cell growth and organization
B. Metaplasia with replacement of one cell type by another [CORRECT]
C. Hyperplasia with increased cell proliferation
D. Anaplasia with loss of cellular differentiation
Correct Answer: B
Rationale: Metaplasia is the reversible replacement of one differentiated cell type with
another, often as an adaptive response to chronic irritation or inflammation. Barrett's
esophagus represents intestinal metaplasia of the esophageal mucosa due to chronic
acid exposure. Dysplasia (A) involves disordered, preneoplastic cell growth. Hyperplasia
(C) is increased cell number. Anaplasia (D) is a hallmark of malignancy with complete
loss of differentiation. [100% VERIFIED – Rasmussen NUR2063]
Q3: A 45-year-old female presents with abnormal cervical cells on Pap smear. The cells
show disordered maturation, nuclear enlargement, and hyperchromasia but do not
invade the basement membrane. Which term BEST describes these cellular changes?
A. Metaplasia with reversible cell type replacement
B. Dysplasia with abnormal cell size, shape, and organization [CORRECT]
C. Hyperplasia with increased cell number only
,D. Carcinoma in situ with full-thickness involvement
Correct Answer: B
Rationale: Dysplasia is characterized by abnormal variation in cell size and shape
(pleomorphism), nuclear enlargement, hyperchromasia, and disordered maturation. It is
considered a preneoplastic lesion that may progress to carcinoma in situ (full-thickness
dysplasia without basement membrane invasion) or invasive cancer if untreated.
Cervical dysplasia (CIN) is graded I-III based on severity. [100% VERIFIED – Rasmussen
NUR2063]
Q4: A patient experiences sudden chest pain and is diagnosed with an acute myocardial
infarction. Histologic examination of the affected myocardium shows preserved tissue
architecture with loss of nuclei and eosinophilic cytoplasm. Which type of necrosis is
MOST likely present?
A. Liquefactive necrosis from enzymatic digestion
B. Coagulative necrosis from ischemic injury [CORRECT]
C. Caseous necrosis from granulomatous inflammation
D. Fat necrosis from saponification
Correct Answer: B
Rationale: Coagulative necrosis is the most common type of necrosis caused by
ischemia (hypoxia) in all tissues except the brain. It is characterized by preserved tissue
architecture, loss of nuclei (karyolysis, pyknosis, karyorrhexis), and increased
, eosinophilia of the cytoplasm. It occurs in myocardial infarction, renal infarction, and
ischemic bowel. Liquefactive necrosis (A) occurs in the CNS and with bacterial
infections. Caseous necrosis (C) is seen in tuberculosis. Fat necrosis (D) occurs in
acute pancreatitis and breast trauma. [100% VERIFIED – Rasmussen NUR2063]
Q5: A patient with bacterial meningitis develops a brain abscess. Histologic
examination of the abscess cavity shows liquefied tissue with pus formation. Which
type of necrosis is characteristic of this process?
A. Coagulative necrosis with preserved architecture
B. Liquefactive necrosis from enzymatic digestion by neutrophils [CORRECT]
C. Caseous necrosis with cheese-like appearance
D. Gangrenous necrosis with dry, shrunken tissue
Correct Answer: B
Rationale: Liquefactive necrosis occurs when enzymatic digestion (by neutrophil
proteases and lysosomal enzymes) completely liquefies the necrotic tissue, forming
pus. This is characteristic of bacterial infections (abscesses) and hypoxic injury in the
brain (due to high lipid content and lack of structural support). Coagulative necrosis (A)
preserves architecture. Caseous necrosis (C) is seen in TB. Gangrenous necrosis (D)
refers to ischemic necrosis of a limb (dry, wet, or gas gangrene). [100% VERIFIED –
Rasmussen NUR2063]