,
, NR 603 WEEK 6 ASSIGNMENT: CEA PRE-
DIAGNOSTIC EXAM CASE STUDY PART 2 |
LATEST UPDATE | WITH COMPLETE
SOLUTIONS.
DOMAIN I: ULCERATIVE COLITIS CASE STUDY
(Questions 1-10)
Question 1
A 32-year-old female presents with a 4-week history of bloody diarrhea,
tenesmus, and lower abdominal cramping. She reports 8-10 bowel
movements daily, worse at night. She denies recent travel or antibiotic use.
Vital signs are normal. Physical exam reveals mild left lower quadrant
tenderness. Which initial diagnostic test is most appropriate?
A) CT abdomen and pelvis with oral contrast
B) Stool culture and Clostridium difficile toxin assay
C) Colonoscopy with biopsies
D) Abdominal X-ray
Correct Answer: B – Stool culture and C. diff toxin assay
Rationale: According to the NR 603 Week 6 CEA Pre-Diagnostic Case Study,
before establishing a diagnosis of inflammatory bowel disease (IBD),
infectious causes must be excluded. Laboratory tests to consider include
stool culture (to rule out Salmonella, Shigella, Campylobacter, or E. coli) and
C. diff toxin test, which is necessary to rule out a concurrent C. diff infection .
Up to 10% of patients presenting with an initial flare of IBD may actually
have an infectious etiology. Colonoscopy with biopsies is the definitive
diagnostic procedure but should only be performed after infectious causes
are ruled out due to risk of perforation in severe colitis .
, NR 603 WEEK 6 ASSIGNMENT: CEA PRE-
DIAGNOSTIC EXAM CASE STUDY PART 2 |
LATEST UPDATE | WITH COMPLETE
SOLUTIONS.
DOMAIN I: ULCERATIVE COLITIS CASE STUDY
(Questions 1-10)
Question 1
A 32-year-old female presents with a 4-week history of bloody diarrhea,
tenesmus, and lower abdominal cramping. She reports 8-10 bowel
movements daily, worse at night. She denies recent travel or antibiotic use.
Vital signs are normal. Physical exam reveals mild left lower quadrant
tenderness. Which initial diagnostic test is most appropriate?
A) CT abdomen and pelvis with oral contrast
B) Stool culture and Clostridium difficile toxin assay
C) Colonoscopy with biopsies
D) Abdominal X-ray
Correct Answer: B – Stool culture and C. diff toxin assay
Rationale: According to the NR 603 Week 6 CEA Pre-Diagnostic Case Study,
before establishing a diagnosis of inflammatory bowel disease (IBD),
infectious causes must be excluded. Laboratory tests to consider include
stool culture (to rule out Salmonella, Shigella, Campylobacter, or E. coli) and
C. diff toxin test, which is necessary to rule out a concurrent C. diff infection .
Up to 10% of patients presenting with an initial flare of IBD may actually
have an infectious etiology. Colonoscopy with biopsies is the definitive
diagnostic procedure but should only be performed after infectious causes
are ruled out due to risk of perforation in severe colitis .
