NSG530 Exam 4 V3 | NSG 530 Advanced
Pathophysiology | Wilkes University
1. A patient with Chronic Kidney Disease (CKD) presents with a Glomerular Filtration Rate
(GFR) of 12 mL/min/1.73m². Which stage of CKD is this patient currently experiencing?
A. Stage 5
B. Stage 4
C. Stage 3
D. Stage 2
Answer: A
Rationale: Stage 5 CKD is defined by a GFR of less than 15 mL/min, representing end-stage
renal disease where dialysis or transplant is necessary for survival. This stage involves a
near-total loss of kidney function and significant accumulation of toxins. Clinical
management focuses on managing uremic symptoms and electrolyte imbalances.
2. Which pathophysiological mechanism primarily drives the progression of Osteoporosis in
postmenopausal women?
A. Increased Osteoblast activity
B. Hypersecretion of Calcitonin
C. Decreased Osteoclast apoptosis
,D. Excessive RANKL expression and decreased OPG
Answer: D
Rationale: Estrogen deficiency leads to an increase in RANKL, which promotes osteoclast
differentiation and bone resorption, while simultaneously decreasing Osteoprotegerin
(OPG), a decoy receptor. This imbalance results in a net loss of bone mineral density.
Understanding this signaling pathway is critical for identifying targets for pharmacological
intervention such as Denosumab.
3. In Systemic Lupus Erythematosus (SLE), the formation of immune complexes that deposit
in the glomerular basement membrane is an example of which hypersensitivity reaction?
A. Type I
B. Type III
C. Type II
D. Type IV
Answer: B
Rationale: SLE involves Type III hypersensitivity where antigen-antibody complexes
circulate and deposit in various tissues, including the kidneys. These deposits trigger the
complement cascade, leading to local inflammation and tissue damage known as lupus
nephritis. This multisystem involvement highlights the complexity of autoimmune
pathophysiology.
, 4. Which of the following findings is most characteristic of Nephrotic Syndrome compared to
Nephritic Syndrome?
A. Gross hematuria
B. Oliguria
C. Proteinuria exceeding 3.5 grams per day
D. Acute hypertension
Answer: C
Rationale: Nephrotic syndrome is characterized by massive proteinuria (>3.5g/24h) due
to increased glomerular permeability. This loss of albumin leads to hypoalbuminemia and
generalized edema. In contrast, nephritic syndrome is more associated with inflammation,
hematuria, and hypertension.
5. A patient is diagnosed with Rheumatoid Arthritis (RA). What is the primary pathological
feature that distinguishes RA from Osteoarthritis?
A. Chronic inflammation of the synovial membrane (Pannus)
B. Subchondral bone sclerosis
C. Wear and tear of articular cartilage
D. Formation of osteophytes
Answer: A
Pathophysiology | Wilkes University
1. A patient with Chronic Kidney Disease (CKD) presents with a Glomerular Filtration Rate
(GFR) of 12 mL/min/1.73m². Which stage of CKD is this patient currently experiencing?
A. Stage 5
B. Stage 4
C. Stage 3
D. Stage 2
Answer: A
Rationale: Stage 5 CKD is defined by a GFR of less than 15 mL/min, representing end-stage
renal disease where dialysis or transplant is necessary for survival. This stage involves a
near-total loss of kidney function and significant accumulation of toxins. Clinical
management focuses on managing uremic symptoms and electrolyte imbalances.
2. Which pathophysiological mechanism primarily drives the progression of Osteoporosis in
postmenopausal women?
A. Increased Osteoblast activity
B. Hypersecretion of Calcitonin
C. Decreased Osteoclast apoptosis
,D. Excessive RANKL expression and decreased OPG
Answer: D
Rationale: Estrogen deficiency leads to an increase in RANKL, which promotes osteoclast
differentiation and bone resorption, while simultaneously decreasing Osteoprotegerin
(OPG), a decoy receptor. This imbalance results in a net loss of bone mineral density.
Understanding this signaling pathway is critical for identifying targets for pharmacological
intervention such as Denosumab.
3. In Systemic Lupus Erythematosus (SLE), the formation of immune complexes that deposit
in the glomerular basement membrane is an example of which hypersensitivity reaction?
A. Type I
B. Type III
C. Type II
D. Type IV
Answer: B
Rationale: SLE involves Type III hypersensitivity where antigen-antibody complexes
circulate and deposit in various tissues, including the kidneys. These deposits trigger the
complement cascade, leading to local inflammation and tissue damage known as lupus
nephritis. This multisystem involvement highlights the complexity of autoimmune
pathophysiology.
, 4. Which of the following findings is most characteristic of Nephrotic Syndrome compared to
Nephritic Syndrome?
A. Gross hematuria
B. Oliguria
C. Proteinuria exceeding 3.5 grams per day
D. Acute hypertension
Answer: C
Rationale: Nephrotic syndrome is characterized by massive proteinuria (>3.5g/24h) due
to increased glomerular permeability. This loss of albumin leads to hypoalbuminemia and
generalized edema. In contrast, nephritic syndrome is more associated with inflammation,
hematuria, and hypertension.
5. A patient is diagnosed with Rheumatoid Arthritis (RA). What is the primary pathological
feature that distinguishes RA from Osteoarthritis?
A. Chronic inflammation of the synovial membrane (Pannus)
B. Subchondral bone sclerosis
C. Wear and tear of articular cartilage
D. Formation of osteophytes
Answer: A
