WEEK 7 PATHO WCU EXAM 150 HIGH
YIELD RENAL AND REPRODUCTIVE
SCENARIOS FEATURING DETAILED
CORRECT ANSWERS WITH
RATIONALES AND CORRECT
VERIFIED ANSWERS INSTANT
DOWNLOAD GRADE A+
Week 7 Patho WCU Exam Practice Questions (1-150)
1. A patient is admitted to the intensive care unit with
severe hypovolemic shock following a motor vehicle
collision. Which type of acute kidney injury (AKI) is
this patient most at risk for developing? A. Intrarenal
AKI B. Prerenal AKI C. Postrenal AKI D. Intrinsic renal AKI
Correct Answer: B Prerenal AKI is caused by conditions
that decrease blood flow to the kidneys, such as hypovolemia,
heart failure, or shock. The kidney tissue itself is initially
undamaged, but the lack of perfusion leads to a drop in the
glomerular filtration rate (GFR).
2. A patient with a history of prolonged ischemia
during cardiac surgery develops acute tubular
necrosis (ATN). Which phase of ATN is characterized
by a gradual increase in urine output, but with rising
blood urea nitrogen (BUN) and creatinine levels? A.
Initiation phase B. Oliguric phase C. Diuretic (recovery) phase
D. Convalescent phase Correct Answer: C The diuretic (or
recovery) phase of ATN is marked by a gradual increase in
urine output as tubular cells regenerate. However, the newly
formed tubules cannot yet concentrate urine or reabsorb
solutes effectively, leading to continued elevations in BUN and
creatinine until full tubular function is restored.
,3. A patient presents with anuria and a palpable,
distended bladder. Ultrasound reveals bilateral
hydronephrosis. What is the most likely category of
acute kidney injury? A. Prerenal B. Intrarenal C. Postrenal
D. Nephrotoxic Correct Answer: C Postrenal AKI is caused
by an obstruction of urine flow out of the kidneys. Bilateral
hydronephrosis and a distended bladder indicate a lower
urinary tract obstruction (such as an enlarged prostate or
bladder tumor), which causes back-pressure that halts
glomerular filtration.
4. A patient with crush injuries to the lower
extremities following a building collapse develops
dark, tea-colored urine. Which mechanism explains
the development of intrarenal acute kidney injury in
this patient? A. Immune complex deposition in the
glomerulus B. Myoglobin-induced tubular toxicity and
obstruction C. Systemic vasodilation and decreased renal
perfusion D. Bacterial infection of the renal interstitium
Correct Answer: B Rhabdomyolysis from crush injuries
releases large amounts of myoglobin into the bloodstream.
Myoglobin is directly toxic to the renal tubules and can
precipitate in the acidic environment of the tubular lumen,
causing obstruction and acute tubular necrosis (intrarenal
AKI).
5. During the oliguric phase of acute kidney injury,
which life-threatening electrolyte imbalance is the
nurse most concerned about? A. Hypokalemia B.
Hyperkalemia C. Hypernatremia D. Hypophosphatemia
Correct Answer: B During the oliguric phase, the kidneys
cannot excrete potassium. Combined with the release of
intracellular potassium from tissue breakdown and metabolic
acidosis (which shifts potassium out of cells), hyperkalemia
develops rapidly and poses a high risk for fatal cardiac
dysrhythmias.
,6. A patient with chronic kidney disease (CKD) asks
why they are feeling so fatigued and short of breath.
The pathophysiology of these symptoms is primarily
related to the kidney's failure to produce which
hormone? A. Renin B. Erythropoietin C. Aldosterone D.
Active Vitamin D Correct Answer: B The peritubular
fibroblasts of the kidneys produce erythropoietin (EPO) in
response to hypoxia. In CKD, damaged kidneys produce less
EPO, leading to decreased red blood cell production in the
bone marrow, resulting in normochromic, normocytic
anemia, which causes fatigue and shortness of breath.
7. A patient with end-stage renal disease (ESRD)
develops renal osteodystrophy. Which sequence of
pathophysiological events leads to this bone disease?
A. Hypercalcemia → decreased PTH → bone resorption B.
Decreased phosphate excretion → hyperphosphatemia →
decreased active vitamin D → hypocalcemia → secondary
hyperparathyroidism C. Increased active vitamin D →
hypercalcemia → bone deposition D. Decreased renin →
hypotension → bone ischemia Correct Answer: B Failing
kidneys cannot excrete phosphate, leading to
hyperphosphatemia. High phosphate binds calcium and
inhibits the kidney's ability to activate vitamin D. The
resulting hypocalcemia stimulates the parathyroid glands to
release excess PTH (secondary hyperparathyroidism), which
pulls calcium from the bones, weakening them.
8. A patient is diagnosed with nephrotic syndrome.
Which classic triad of clinical manifestations confirms
this diagnosis? A. Hematuria, hypertension, and oliguria B.
Massive proteinuria, hypoalbuminemia, and severe edema C.
Dysuria, frequency, and flank pain D. Polyuria, polydipsia, and
polyphagia Correct Answer: B Nephrotic syndrome is
characterized by damage to the glomerular filtration
membrane, allowing massive amounts of plasma proteins
, (especially albumin) to leak into the urine (proteinuria). This
causes serum albumin levels to drop (hypoalbuminemia),
reducing plasma oncotic pressure and causing fluid to shift
into the interstitial space (severe edema).
9. A patient with nephrotic syndrome is found to have
significantly elevated serum lipid levels. What is the
pathophysiological mechanism for this
hyperlipidemia? A. The kidneys are failing to filter lipids out
of the blood. B. The liver increases lipoprotein synthesis in
response to hypoalbuminemia and decreased plasma oncotic
pressure. C. The patient has a concurrent genetic disorder of
lipid metabolism. D. Diuretic therapy is causing lipid retention.
Correct Answer: B In nephrotic syndrome, the liver
attempts to compensate for the low serum oncotic pressure
and protein loss by increasing the synthesis of proteins,
including lipoproteins. This overproduction leads to
hyperlipidemia (elevated cholesterol and triglycerides).
10. A patient presents with gross hematuria,
hypertension, and mild edema two weeks after a
severe streptococcal throat infection. Urinalysis shows
red blood cell casts. What is the underlying
pathophysiology of this condition? A. Bacterial infection
of the renal pelvis B. Immune complex deposition in the
glomerular basement membrane C. Autoimmune destruction of
the renal tubules D. Obstruction of the ureters by uric acid
crystals Correct Answer: B Poststreptococcal
glomerulonephritis (PSGN) is a nephritic syndrome caused by
a type III hypersensitivity reaction. Antibodies formed against
the streptococcal antigen bind to the antigen, forming immune
complexes that deposit in the glomerular basement membrane,
triggering inflammation, complement activation, and
glomerular damage.
11. A young adult male presents with episodes of gross
hematuria that occur concurrently with upper
YIELD RENAL AND REPRODUCTIVE
SCENARIOS FEATURING DETAILED
CORRECT ANSWERS WITH
RATIONALES AND CORRECT
VERIFIED ANSWERS INSTANT
DOWNLOAD GRADE A+
Week 7 Patho WCU Exam Practice Questions (1-150)
1. A patient is admitted to the intensive care unit with
severe hypovolemic shock following a motor vehicle
collision. Which type of acute kidney injury (AKI) is
this patient most at risk for developing? A. Intrarenal
AKI B. Prerenal AKI C. Postrenal AKI D. Intrinsic renal AKI
Correct Answer: B Prerenal AKI is caused by conditions
that decrease blood flow to the kidneys, such as hypovolemia,
heart failure, or shock. The kidney tissue itself is initially
undamaged, but the lack of perfusion leads to a drop in the
glomerular filtration rate (GFR).
2. A patient with a history of prolonged ischemia
during cardiac surgery develops acute tubular
necrosis (ATN). Which phase of ATN is characterized
by a gradual increase in urine output, but with rising
blood urea nitrogen (BUN) and creatinine levels? A.
Initiation phase B. Oliguric phase C. Diuretic (recovery) phase
D. Convalescent phase Correct Answer: C The diuretic (or
recovery) phase of ATN is marked by a gradual increase in
urine output as tubular cells regenerate. However, the newly
formed tubules cannot yet concentrate urine or reabsorb
solutes effectively, leading to continued elevations in BUN and
creatinine until full tubular function is restored.
,3. A patient presents with anuria and a palpable,
distended bladder. Ultrasound reveals bilateral
hydronephrosis. What is the most likely category of
acute kidney injury? A. Prerenal B. Intrarenal C. Postrenal
D. Nephrotoxic Correct Answer: C Postrenal AKI is caused
by an obstruction of urine flow out of the kidneys. Bilateral
hydronephrosis and a distended bladder indicate a lower
urinary tract obstruction (such as an enlarged prostate or
bladder tumor), which causes back-pressure that halts
glomerular filtration.
4. A patient with crush injuries to the lower
extremities following a building collapse develops
dark, tea-colored urine. Which mechanism explains
the development of intrarenal acute kidney injury in
this patient? A. Immune complex deposition in the
glomerulus B. Myoglobin-induced tubular toxicity and
obstruction C. Systemic vasodilation and decreased renal
perfusion D. Bacterial infection of the renal interstitium
Correct Answer: B Rhabdomyolysis from crush injuries
releases large amounts of myoglobin into the bloodstream.
Myoglobin is directly toxic to the renal tubules and can
precipitate in the acidic environment of the tubular lumen,
causing obstruction and acute tubular necrosis (intrarenal
AKI).
5. During the oliguric phase of acute kidney injury,
which life-threatening electrolyte imbalance is the
nurse most concerned about? A. Hypokalemia B.
Hyperkalemia C. Hypernatremia D. Hypophosphatemia
Correct Answer: B During the oliguric phase, the kidneys
cannot excrete potassium. Combined with the release of
intracellular potassium from tissue breakdown and metabolic
acidosis (which shifts potassium out of cells), hyperkalemia
develops rapidly and poses a high risk for fatal cardiac
dysrhythmias.
,6. A patient with chronic kidney disease (CKD) asks
why they are feeling so fatigued and short of breath.
The pathophysiology of these symptoms is primarily
related to the kidney's failure to produce which
hormone? A. Renin B. Erythropoietin C. Aldosterone D.
Active Vitamin D Correct Answer: B The peritubular
fibroblasts of the kidneys produce erythropoietin (EPO) in
response to hypoxia. In CKD, damaged kidneys produce less
EPO, leading to decreased red blood cell production in the
bone marrow, resulting in normochromic, normocytic
anemia, which causes fatigue and shortness of breath.
7. A patient with end-stage renal disease (ESRD)
develops renal osteodystrophy. Which sequence of
pathophysiological events leads to this bone disease?
A. Hypercalcemia → decreased PTH → bone resorption B.
Decreased phosphate excretion → hyperphosphatemia →
decreased active vitamin D → hypocalcemia → secondary
hyperparathyroidism C. Increased active vitamin D →
hypercalcemia → bone deposition D. Decreased renin →
hypotension → bone ischemia Correct Answer: B Failing
kidneys cannot excrete phosphate, leading to
hyperphosphatemia. High phosphate binds calcium and
inhibits the kidney's ability to activate vitamin D. The
resulting hypocalcemia stimulates the parathyroid glands to
release excess PTH (secondary hyperparathyroidism), which
pulls calcium from the bones, weakening them.
8. A patient is diagnosed with nephrotic syndrome.
Which classic triad of clinical manifestations confirms
this diagnosis? A. Hematuria, hypertension, and oliguria B.
Massive proteinuria, hypoalbuminemia, and severe edema C.
Dysuria, frequency, and flank pain D. Polyuria, polydipsia, and
polyphagia Correct Answer: B Nephrotic syndrome is
characterized by damage to the glomerular filtration
membrane, allowing massive amounts of plasma proteins
, (especially albumin) to leak into the urine (proteinuria). This
causes serum albumin levels to drop (hypoalbuminemia),
reducing plasma oncotic pressure and causing fluid to shift
into the interstitial space (severe edema).
9. A patient with nephrotic syndrome is found to have
significantly elevated serum lipid levels. What is the
pathophysiological mechanism for this
hyperlipidemia? A. The kidneys are failing to filter lipids out
of the blood. B. The liver increases lipoprotein synthesis in
response to hypoalbuminemia and decreased plasma oncotic
pressure. C. The patient has a concurrent genetic disorder of
lipid metabolism. D. Diuretic therapy is causing lipid retention.
Correct Answer: B In nephrotic syndrome, the liver
attempts to compensate for the low serum oncotic pressure
and protein loss by increasing the synthesis of proteins,
including lipoproteins. This overproduction leads to
hyperlipidemia (elevated cholesterol and triglycerides).
10. A patient presents with gross hematuria,
hypertension, and mild edema two weeks after a
severe streptococcal throat infection. Urinalysis shows
red blood cell casts. What is the underlying
pathophysiology of this condition? A. Bacterial infection
of the renal pelvis B. Immune complex deposition in the
glomerular basement membrane C. Autoimmune destruction of
the renal tubules D. Obstruction of the ureters by uric acid
crystals Correct Answer: B Poststreptococcal
glomerulonephritis (PSGN) is a nephritic syndrome caused by
a type III hypersensitivity reaction. Antibodies formed against
the streptococcal antigen bind to the antigen, forming immune
complexes that deposit in the glomerular basement membrane,
triggering inflammation, complement activation, and
glomerular damage.
11. A young adult male presents with episodes of gross
hematuria that occur concurrently with upper
