WEB WOC OST581 - OSTOMY CARE NURSE SPECIALIST FINAL EXAM 300 MULTIPLE
CHOICE QUESTIONS WITH CORRECT ANSWERS AND RATIONALES
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SECTION 1: OSTOMY ANATOMY & PHYSIOLOGY (Questions 1-30)
1. Which structures are responsible for the highly absorptive nature of the small
bowel's surface?
A) Rugae
B) Peyer's patches
C) Villi
D) Taeniae coli
Answer: C
Rationale: Villi are finger-like projections lining the small intestine that
dramatically increase surface area for nutrient and fluid absorption. Rugae are
found in the stomach, Peyer's patches are lymphoid tissue, and taeniae coli are
bands of longitudinal muscle in the large intestine .
2. The ileum is the only site for absorption of which vitamin?
A) Vitamin C
B) Vitamin D
C) Vitamin B12
,D) Vitamin K
Answer: C
Rationale: The terminal ileum contains specific receptors for intrinsic factor-
mediated absorption of vitamin B12. This is clinically significant because patients
who have their terminal ileum removed require B12 supplementation .
3. Normal urine pH ranges from:
A) 7.0-8.0
B) 4.6-6.0
C) 3.0-4.5
D) 6.5-7.5
Answer: B
Rationale: Normal urine is slightly acidic with a pH range of 4.6 to 6.0. This acidity
can affect peristomal skin integrity in patients with urinary diversions .
4. Approximately what percentage of nutrients are absorbed in the proximal 100
cm of small bowel?
A) 40%
B) 60%
C) 80%
D) 95%
,Answer: C
Rationale: Approximately 80% of nutrient absorption occurs in the proximal 100
cm of the small intestine. This is important when assessing patients who have had
significant small bowel resections .
5. In ulcerative colitis, colonic inflammation:
A) Always appears in the rectum
B) Is patchy in distribution
C) Never involves the rectum
D) Is limited to the right colon
Answer: A
Rationale: Ulcerative colitis characteristically involves the rectum and extends
proximally in a continuous fashion. Unlike Crohn's disease, the inflammation is
continuous rather than patchy .
6. Which statement accurately describes Crohn's disease versus ulcerative colitis?
A) Crohn's causes continuous inflammation; UC causes patchy inflammation
B) Crohn's is limited to the colon; UC can occur anywhere in the GI tract
C) Crohn's causes patchy inflammation; UC causes continuous inflammation
D) Both diseases cause identical endoscopic findings
Answer: C
, Rationale: Crohn's disease produces patchy (skip lesion) inflammation that can
occur anywhere in the GI tract, while ulcerative colitis causes continuous
inflammation limited to the colon and rectum .
7. Hirschsprung's disease is characterized by:
A) Absence of neurons in the bowel wall
B) Excessive neuronal growth
C) Inflammation of the ileum
D) Ulceration of the gastric mucosa
Answer: A
Rationale: Hirschsprung's disease is a congenital condition characterized by the
absence of ganglion cells (neurons) in the bowel wall, typically in the sigmoid
colon. This results in functional obstruction .
8. Fistulas are classified as high output when output exceeds:
A) 200 mL/day
B) 500 mL/day
C) 1000 mL/day
D) 1500 mL/day
Answer: B
Rationale: High-output fistulas produce >500 mL/day, moderate-output fistulas
produce 200-500 mL/day, and low-output fistulas produce <200 mL/day. High-
output fistulas can cause significant fluid and electrolyte imbalances .
CHOICE QUESTIONS WITH CORRECT ANSWERS AND RATIONALES
---
SECTION 1: OSTOMY ANATOMY & PHYSIOLOGY (Questions 1-30)
1. Which structures are responsible for the highly absorptive nature of the small
bowel's surface?
A) Rugae
B) Peyer's patches
C) Villi
D) Taeniae coli
Answer: C
Rationale: Villi are finger-like projections lining the small intestine that
dramatically increase surface area for nutrient and fluid absorption. Rugae are
found in the stomach, Peyer's patches are lymphoid tissue, and taeniae coli are
bands of longitudinal muscle in the large intestine .
2. The ileum is the only site for absorption of which vitamin?
A) Vitamin C
B) Vitamin D
C) Vitamin B12
,D) Vitamin K
Answer: C
Rationale: The terminal ileum contains specific receptors for intrinsic factor-
mediated absorption of vitamin B12. This is clinically significant because patients
who have their terminal ileum removed require B12 supplementation .
3. Normal urine pH ranges from:
A) 7.0-8.0
B) 4.6-6.0
C) 3.0-4.5
D) 6.5-7.5
Answer: B
Rationale: Normal urine is slightly acidic with a pH range of 4.6 to 6.0. This acidity
can affect peristomal skin integrity in patients with urinary diversions .
4. Approximately what percentage of nutrients are absorbed in the proximal 100
cm of small bowel?
A) 40%
B) 60%
C) 80%
D) 95%
,Answer: C
Rationale: Approximately 80% of nutrient absorption occurs in the proximal 100
cm of the small intestine. This is important when assessing patients who have had
significant small bowel resections .
5. In ulcerative colitis, colonic inflammation:
A) Always appears in the rectum
B) Is patchy in distribution
C) Never involves the rectum
D) Is limited to the right colon
Answer: A
Rationale: Ulcerative colitis characteristically involves the rectum and extends
proximally in a continuous fashion. Unlike Crohn's disease, the inflammation is
continuous rather than patchy .
6. Which statement accurately describes Crohn's disease versus ulcerative colitis?
A) Crohn's causes continuous inflammation; UC causes patchy inflammation
B) Crohn's is limited to the colon; UC can occur anywhere in the GI tract
C) Crohn's causes patchy inflammation; UC causes continuous inflammation
D) Both diseases cause identical endoscopic findings
Answer: C
, Rationale: Crohn's disease produces patchy (skip lesion) inflammation that can
occur anywhere in the GI tract, while ulcerative colitis causes continuous
inflammation limited to the colon and rectum .
7. Hirschsprung's disease is characterized by:
A) Absence of neurons in the bowel wall
B) Excessive neuronal growth
C) Inflammation of the ileum
D) Ulceration of the gastric mucosa
Answer: A
Rationale: Hirschsprung's disease is a congenital condition characterized by the
absence of ganglion cells (neurons) in the bowel wall, typically in the sigmoid
colon. This results in functional obstruction .
8. Fistulas are classified as high output when output exceeds:
A) 200 mL/day
B) 500 mL/day
C) 1000 mL/day
D) 1500 mL/day
Answer: B
Rationale: High-output fistulas produce >500 mL/day, moderate-output fistulas
produce 200-500 mL/day, and low-output fistulas produce <200 mL/day. High-
output fistulas can cause significant fluid and electrolyte imbalances .
