NR 545 EXAM 3 COMPREHENSIVE
EXAM PREP 2026/2027 | VERIFIED
Q&A | CHAMBERLAIN UNIVERSITY
Question 1
A patient presents to the clinic with fever, severe flank pain,
urinary urgency, and painful urination. A urinalysis reveals
purulent exudate and leukocyte esterase. Pathophysiologically,
how does this condition primarily differ from lower urinary tract
inflammation?
• A. It involves inflammation limited strictly to the bladder
mucosal lining.
• B. Infection extends retrograde from the ureter into the
renal pelvis, medullary tissue, and interstitial spaces.
• C. It is driven by an immune-complex deposition following
a group A streptococcal infection.
• D. It primarily causes obstruction at the level of the
prostatic urethra due to smooth muscle contraction.
Correct Answer: B
Rationale: Pyelonephritis involves infection extending from the
ureter into the renal pelvis and medullary tissue, often forming
purulent exudate and abscesses. Lower urinary tract infections
like cystitis are localized to the lower tract without renal
parenchyma involvement or significant systemic symptoms like
high fever and flank pain.
,Question 2
A 24-year-old female presents with dysuria, frequency, and
burning upon urination. A urine culture is positive for
Staphylococcus saprophyticus. Which of the following first-line
oral antibiotic options is appropriate for treating this condition?
• A. Omeprazole
• B. Spironolactone
• C. Trimethoprim-sulfamethoxazole (Bactrim)
• C. Carvedilol
Correct Answer: C
Rationale: Trimethoprim-sulfamethoxazole (Bactrim) or
Nitrofurantoin are common antibacterial agents used to treat
urinary tract infections (UTIs) caused by organisms like E. coli
or Staphylococcus saprophyticus.
Question 3
A 7-year-old patient who recently recovered from a sore throat
presents with facial and periorbital edema, hypertension, and
urine that appears dark and "coffee-colored." What underlying
pathophysiology explains these clinical manifestations?
• A. Direct bacterial invasion of the renal tubules causing
tissue necrosis.
, • B. Formation of antistreptococcal antigen-antibody
complexes lodging in glomerular capillaries (Type III
hypersensitivity).
• C. IgE-mediated histamine release causing widespread
systemic capillary dilation.
• D. Autoimmune destruction of adrenal cortex cells leading
to aldosterone excess.
Correct Answer: B
Rationale: Post-streptococcal glomerulonephritis is a type III
hypersensitivity reaction where immune complexes lodge in
glomerular capillaries, activating the complement cascade. This
leads to capillary permeability, allowing erythrocytes and
proteins to leak into the urine (causing smoky/coffee-colored
urine) and reducing GFR.
Question 4
A clinician suspects a patient has acute appendicitis. To perform
the Psoas test, how should the provider position and maneuver
the patient?
• A. Have the patient lie supine and flex the left hip against
manual resistance.
• B. Have the patient lie on their left side while extending the
right leg backward at the hip joint.
• C. Palpate deeply in the left lower quadrant and quickly
release pressure to assess for right lower quadrant pain.
• D. Ask the patient to take a deep breath while deeply
palpating the right upper quadrant.
, Correct Answer: B
Rationale: The psoas sign is elicited by placing the patient on
their left side and extending the right hip/leg backward.
Increased right lower quadrant (RLQ) pain during this stretch
indicates retrocecal appendix irritation over the psoas muscle.
Question 5
A patient with a history of long-term ibuprofen use for chronic
back pain is diagnosed with a peptic ulcer. Which therapeutic
mechanism of action is provided by sucralfate in managing
peptic ulcer disease?
• A. Irreversibly inhibiting H+/K+ ATPase pumps in gastric
parietal cells.
• B. Selectively blocking histamine H2 receptors to slow acid
secretion.
• C. Binding directly to the damaged mucosal layer to form a
protective physical barrier.
• D. Eradicating H. pylori bacterial infection directly through
cell wall breakdown.
Correct Answer: C
Rationale: Sucralfate acts as a cytoprotective agent by binding
directly to damaged gastrointestinal mucosal tissue, forming a
physical barrier against acid, pepsin, and bile salts to promote
healing.
EXAM PREP 2026/2027 | VERIFIED
Q&A | CHAMBERLAIN UNIVERSITY
Question 1
A patient presents to the clinic with fever, severe flank pain,
urinary urgency, and painful urination. A urinalysis reveals
purulent exudate and leukocyte esterase. Pathophysiologically,
how does this condition primarily differ from lower urinary tract
inflammation?
• A. It involves inflammation limited strictly to the bladder
mucosal lining.
• B. Infection extends retrograde from the ureter into the
renal pelvis, medullary tissue, and interstitial spaces.
• C. It is driven by an immune-complex deposition following
a group A streptococcal infection.
• D. It primarily causes obstruction at the level of the
prostatic urethra due to smooth muscle contraction.
Correct Answer: B
Rationale: Pyelonephritis involves infection extending from the
ureter into the renal pelvis and medullary tissue, often forming
purulent exudate and abscesses. Lower urinary tract infections
like cystitis are localized to the lower tract without renal
parenchyma involvement or significant systemic symptoms like
high fever and flank pain.
,Question 2
A 24-year-old female presents with dysuria, frequency, and
burning upon urination. A urine culture is positive for
Staphylococcus saprophyticus. Which of the following first-line
oral antibiotic options is appropriate for treating this condition?
• A. Omeprazole
• B. Spironolactone
• C. Trimethoprim-sulfamethoxazole (Bactrim)
• C. Carvedilol
Correct Answer: C
Rationale: Trimethoprim-sulfamethoxazole (Bactrim) or
Nitrofurantoin are common antibacterial agents used to treat
urinary tract infections (UTIs) caused by organisms like E. coli
or Staphylococcus saprophyticus.
Question 3
A 7-year-old patient who recently recovered from a sore throat
presents with facial and periorbital edema, hypertension, and
urine that appears dark and "coffee-colored." What underlying
pathophysiology explains these clinical manifestations?
• A. Direct bacterial invasion of the renal tubules causing
tissue necrosis.
, • B. Formation of antistreptococcal antigen-antibody
complexes lodging in glomerular capillaries (Type III
hypersensitivity).
• C. IgE-mediated histamine release causing widespread
systemic capillary dilation.
• D. Autoimmune destruction of adrenal cortex cells leading
to aldosterone excess.
Correct Answer: B
Rationale: Post-streptococcal glomerulonephritis is a type III
hypersensitivity reaction where immune complexes lodge in
glomerular capillaries, activating the complement cascade. This
leads to capillary permeability, allowing erythrocytes and
proteins to leak into the urine (causing smoky/coffee-colored
urine) and reducing GFR.
Question 4
A clinician suspects a patient has acute appendicitis. To perform
the Psoas test, how should the provider position and maneuver
the patient?
• A. Have the patient lie supine and flex the left hip against
manual resistance.
• B. Have the patient lie on their left side while extending the
right leg backward at the hip joint.
• C. Palpate deeply in the left lower quadrant and quickly
release pressure to assess for right lower quadrant pain.
• D. Ask the patient to take a deep breath while deeply
palpating the right upper quadrant.
, Correct Answer: B
Rationale: The psoas sign is elicited by placing the patient on
their left side and extending the right hip/leg backward.
Increased right lower quadrant (RLQ) pain during this stretch
indicates retrocecal appendix irritation over the psoas muscle.
Question 5
A patient with a history of long-term ibuprofen use for chronic
back pain is diagnosed with a peptic ulcer. Which therapeutic
mechanism of action is provided by sucralfate in managing
peptic ulcer disease?
• A. Irreversibly inhibiting H+/K+ ATPase pumps in gastric
parietal cells.
• B. Selectively blocking histamine H2 receptors to slow acid
secretion.
• C. Binding directly to the damaged mucosal layer to form a
protective physical barrier.
• D. Eradicating H. pylori bacterial infection directly through
cell wall breakdown.
Correct Answer: C
Rationale: Sucralfate acts as a cytoprotective agent by binding
directly to damaged gastrointestinal mucosal tissue, forming a
physical barrier against acid, pepsin, and bile salts to promote
healing.
