NURS 611 Week 8: Renal, Urinary, and Reproductive Pathophysiology
2026 |Maryville
1. A patient with chronic kidney disease (CKD) presents with severe anemia.
What is the primary pathophysiological mechanism behind this finding?
A. Inadequate production of erythropoietin by the kidneys
B. Chronic blood loss during hemodialysis
C. Deficiency in dietary iron absorption
D. Shortened lifespan of red blood cells due to uremic toxins
Answer: A
Rationale: The kidneys are the primary site for erythropoietin production. In CKD, the loss
of peritubular fibroblasts leads to decreased erythropoietin, resulting in normocytic
normochromic anemia.
2. Which of the following describes the most common type of renal stone?
A. Calcium oxalate stones
B. Uric acid stones from gout
C. Struvite stones associated with UTIs
D. Cystine stones due to genetic defects
Answer: A
Rationale: Calcium oxalate or calcium phosphate stones account for approximately 70-
80% of all renal calculi.
,3. A 45-year-old male is diagnosed with acute tubular necrosis (ATN). Which
phase of ATN is characterized by a gradual increase in urine output but a
continued elevation in serum creatinine?
A. Recovery phase
B. Maintenance phase
C. Initiation phase
D. Extension phase
Answer: A
Rationale: In the recovery (diuretic) phase, urine volume increases as the GFR begins to
improve, but the regenerating tubules cannot yet concentrate urine or fully clear waste
products like creatinine.
4. In the Renin-Angiotensin-Aldosterone System (RAAS), what is the direct effect
of Angiotensin II on the efferent arteriole?
A. Vasodilation to increase blood flow
B. Vasoconstriction to maintain glomerular filtration rate (GFR)
C. Inhibition of renin release
D. Decreased permeability of the podocytes
Answer: B
Rationale: Angiotensin II preferentially constricts the efferent arteriole, which increases
glomerular capillary hydrostatic pressure and helps maintain GFR when renal perfusion is
low.
, 5. A patient presents with massive proteinuria (>3.5g/day), hypoalbuminemia,
and generalized edema. Which condition is most likely?
A. Acute Glomerulonephritis
B. Nephrotic Syndrome
C. Nephritic Syndrome
D. Pyelonephritis
Answer: B
Rationale: Nephrotic syndrome is characterized by heavy proteinuria, hypoalbuminemia,
and edema, whereas Nephritic syndrome is characterized by hematuria and hypertension.
6. What is the most common causative organism for uncomplicated urinary
tract infections (UTIs)?
A. Staphylococcus saprophyticus
B. Klebsiella pneumoniae
C. Escherichia coli
D. Proteus mirabilis
Answer: C
Rationale: E. coli is responsible for 80-85% of community-acquired UTIs due to its ability
to adhere to the urothelium via fimbriae.
7. Which electrolyte abnormality is the most life-threatening complication of
end-stage renal disease (ESRD)?
A. Hyperkalemia
B. Hypermagnesemia
C. Hypocalcemia
D. Hyponatremia
Answer: A
Rationale: Hyperkalemia can cause lethal cardiac arrhythmias and is a critical concern in
patients with reduced GFR who cannot excrete potassium effectively.
2026 |Maryville
1. A patient with chronic kidney disease (CKD) presents with severe anemia.
What is the primary pathophysiological mechanism behind this finding?
A. Inadequate production of erythropoietin by the kidneys
B. Chronic blood loss during hemodialysis
C. Deficiency in dietary iron absorption
D. Shortened lifespan of red blood cells due to uremic toxins
Answer: A
Rationale: The kidneys are the primary site for erythropoietin production. In CKD, the loss
of peritubular fibroblasts leads to decreased erythropoietin, resulting in normocytic
normochromic anemia.
2. Which of the following describes the most common type of renal stone?
A. Calcium oxalate stones
B. Uric acid stones from gout
C. Struvite stones associated with UTIs
D. Cystine stones due to genetic defects
Answer: A
Rationale: Calcium oxalate or calcium phosphate stones account for approximately 70-
80% of all renal calculi.
,3. A 45-year-old male is diagnosed with acute tubular necrosis (ATN). Which
phase of ATN is characterized by a gradual increase in urine output but a
continued elevation in serum creatinine?
A. Recovery phase
B. Maintenance phase
C. Initiation phase
D. Extension phase
Answer: A
Rationale: In the recovery (diuretic) phase, urine volume increases as the GFR begins to
improve, but the regenerating tubules cannot yet concentrate urine or fully clear waste
products like creatinine.
4. In the Renin-Angiotensin-Aldosterone System (RAAS), what is the direct effect
of Angiotensin II on the efferent arteriole?
A. Vasodilation to increase blood flow
B. Vasoconstriction to maintain glomerular filtration rate (GFR)
C. Inhibition of renin release
D. Decreased permeability of the podocytes
Answer: B
Rationale: Angiotensin II preferentially constricts the efferent arteriole, which increases
glomerular capillary hydrostatic pressure and helps maintain GFR when renal perfusion is
low.
, 5. A patient presents with massive proteinuria (>3.5g/day), hypoalbuminemia,
and generalized edema. Which condition is most likely?
A. Acute Glomerulonephritis
B. Nephrotic Syndrome
C. Nephritic Syndrome
D. Pyelonephritis
Answer: B
Rationale: Nephrotic syndrome is characterized by heavy proteinuria, hypoalbuminemia,
and edema, whereas Nephritic syndrome is characterized by hematuria and hypertension.
6. What is the most common causative organism for uncomplicated urinary
tract infections (UTIs)?
A. Staphylococcus saprophyticus
B. Klebsiella pneumoniae
C. Escherichia coli
D. Proteus mirabilis
Answer: C
Rationale: E. coli is responsible for 80-85% of community-acquired UTIs due to its ability
to adhere to the urothelium via fimbriae.
7. Which electrolyte abnormality is the most life-threatening complication of
end-stage renal disease (ESRD)?
A. Hyperkalemia
B. Hypermagnesemia
C. Hypocalcemia
D. Hyponatremia
Answer: A
Rationale: Hyperkalemia can cause lethal cardiac arrhythmias and is a critical concern in
patients with reduced GFR who cannot excrete potassium effectively.
