STUDY GUIDE 2026/2027 ACCURATE
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NEWEST VERSION
(Advanced Pathophysiology)
Description: This revision set covers high-yield concepts from NR-507 Advanced
Pathophysiology, formatted for Examplify-style proctored final exam preparation. Each
question includes the correct answer marked with ✅ and a concise rationale.
Key Words: Cellular adaptation, inflammation, immunity, cardiovascular, respiratory,
renal, endocrine, gastrointestinal, acid-base, hematology, neurologic, musculoskeletal.
Section 1: Cellular Adaptation, Injury & Neoplasia
Q1. A patient has been immobilized in a cast for 6 weeks. Upon removal, the
affected limb shows significant muscle mass decrease. Which cellular adaptation is
responsible?
A. Hypertrophy
B. Hyperplasia
C. Atrophy ✅
D. Metaplasia
Rationale: Atrophy is a decrease in cell size resulting in reduced tissue mass, occurring
with reduced workload or immobilization .
,Q2. A 45-year-old male with uncontrolled hypertension presents with left
ventricular hypertrophy. Which cellular mechanism primarily causes the increased
myocardial mass?
A. Hyperplasia
B. Hypertrophy ✅
C. Metaplasia
D. Dysplasia
Rationale: Cardiac muscle cells cannot divide; they enlarge (hypertrophy) in response to
increased workload from hypertension .
Q3. A chronic smoker's bronchial biopsy reveals ciliated columnar cells replaced by
stratified squamous epithelium. This process is best described as:
A. Dysplasia
B. Hyperplasia
C. Metaplasia ✅
D. Anaplasia
Rationale: Metaplasia is the reversible replacement of one differentiated cell type with
another in response to chronic irritation .
Q4. A pathologist notes disordered cellular growth with variations in cell size and
shape, loss of organization, but confined to the epithelial layer. This is indicative
of:
A. Metaplasia
B. Dysplasia ✅
C. Neoplasia
D. Hypertrophy
Rationale: Dysplasia refers to deranged cellular growth that is often reversible and
characterized by atypical cells without basement membrane invasion .
,Q5. Which statement best distinguishes apoptosis from necrosis?
A. Apoptosis is pathological; necrosis is programmed
B. Apoptosis is programmed cell death without inflammation; necrosis triggers
inflammation ✅
C. Necrosis is energy-dependent; apoptosis is energy-independent
D. Apoptosis causes cellular swelling; necrosis causes shrinkage
Rationale: Apoptosis is controlled, energy-dependent cell death without inflammation;
necrosis is unprogrammed death provoking inflammation .
Q6. A patient with myocardial infarction shows coagulative necrosis in the
ischemic heart muscle. What is the hallmark microscopic feature?
A. Preservation of basic cell outline but loss of nucleus ✅
B. Complete liquefaction of tissue
C. Cheesy white debris formation
D. Fat accumulation in cells
Rationale: Coagulative necrosis preserves tissue architecture but cells lose nuclei;
typical of ischemic injury except in the brain .
Q7. Which class of genes normally functions to inhibit cell proliferation and
prevent uncontrolled growth?
A. Proto-oncogenes
B. Tumor suppressor genes ✅
C. Telomerase genes
D. Oncogenes
Rationale: Tumor suppressor genes (e.g., p53, Rb) act as "brakes" on cell division;
inactivation leads to cancer .
Q8. A poorly differentiated tumor with cells bearing little resemblance to tissue of
origin is used to determine the tumor's:
A. Stage
, B. Grade ✅
C. Size
D. Metastatic potential
Rationale: Grade refers to degree of differentiation; poorly differentiated (anaplastic)
tumors are high grade .
Q9. A diabetic patient shows microvascular damage due to advanced glycosylation
end products (AGEs). What is the primary mechanism of injury?
A. Osmotic injury
B. Non-enzymatic protein glycation ✅
C. Immune complex deposition
D. Viral cytotoxicity
Rationale: AGEs form through non-enzymatic glycation of proteins, leading to cross-
linking and vascular damage .
Q10. Which cellular adaptation is characterized by a decrease in cell size?
A. Hypertrophy
B. Hyperplasia
C. Atrophy ✅
D. Metaplasia
Rationale: Atrophy is a decrease in cellular size from disuse, denervation, ischemia, or
nutrient starvation .
Section 2: Inflammation & Immunity
Q11. Which cell is the first to arrive at the site of acute inflammation?
A. Macrophage
B. Lymphocyte