👤 By the CinnaRN Clinical Content Team🕐 Updated 2026-08-23🏷️ Physiological Adaptation🔖 Free to read, print, and share
Also known as: crohns · inflammatory bowel disease · IBD · regional enteritis
Crohn Disease — medical illustration. Illustration: BruceBlaus via Wikimedia Commons, CC BY-SA 4.0.
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Use this quick-reference guide to spot, treat, and prevent Crohn Disease on the NCLEX. Keep it handy during review and on exam day!
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📒 The 1-minute cheat sheet
📌 Mech
any GI mouth→anus, skip lesions
transmural, cobblestone mucosa
often terminal ileum
🩺 Signs
RLQ pain, NON-bloody diarrhea
5+ loose stools/day, wt loss
steatorrhea, malabsorption
🚩 Report
fistulas, abscess, strictures
bowel obstruction, B12 deficiency
✅ Do
↑protein ↑cal, low-fiber low-fat
steroids, immunomod, biologics
small frequent meals, B12 inject
📚 Crohn Disease — full study notes
The cheat sheet above is your quick recall card. These notes go deeper — what it is, what to do first, what must be reported, and what to teach.
Crohn disease is a chronic inflammatory bowel disease that can affect any part of the GI tract from mouth to anus, most often the terminal ileum. Inflammation is transmural (through all bowel wall layers) and occurs in patchy skip lesions, giving a cobblestone appearance. This deep, segmental inflammation predisposes to fistulas, strictures, and abscesses. It causes malabsorption and weight loss.
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Key points
Understand these first
Inflammation is transmural and discontinuous with healthy skip areas between diseased segments.
It commonly affects the terminal ileum but can occur anywhere from mouth to anus.
Chronic non-bloody diarrhea, right lower quadrant cramping pain, and weight loss are typical.
Transmural disease leads to fistulas, abscesses, strictures, and bowel obstruction.
Malabsorption causes nutritional deficiencies, including B12, iron, and fat-soluble vitamins.
Fever, severe abdominal pain, and rigidity may indicate abscess or perforation.
Sudden increase in pain with peritoneal signs must be reported immediately.
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Labs & values
Numbers to know
Albumin: 3.5-5 g/dL (decreased with malabsorption)
Hemoglobin: 12-18 g/dL (decreased with anemia)
Vitamin B12 low; ESR/CRP elevated during flares
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Patient teaching
What patients must know
Identify and avoid trigger foods; eat small frequent low-residue meals during flares.
Take medications consistently even when feeling well to maintain remission.
Report increasing pain, fever, drainage, or signs of obstruction promptly.
❓ Crohn Disease: NCLEX FAQs
What are the priority nursing interventions for Crohn Disease?
Administer prescribed anti-inflammatory and immunosuppressive therapy (aminosalicylates, corticosteroids, biologics). Monitor nutrition status, weight, and electrolytes; provide high-calorie, high-protein, low-residue diet as tolerated. Assess for complications such as fistulas, abscesses, and obstruction. Track stool frequency and characteristics and maintain fluid and electrolyte balance.
What are the warning signs of Crohn Disease a nurse must report?
Signs of bowel obstruction (distention, vomiting, absent stool/flatus) require urgent evaluation. Fever, severe abdominal pain, and rigidity may indicate abscess or perforation. Sudden increase in pain with peritoneal signs must be reported immediately.
What do I need to know about Crohn Disease for the NCLEX?
Inflammation is transmural and discontinuous with healthy skip areas between diseased segments. It commonly affects the terminal ileum but can occur anywhere from mouth to anus. Chronic non-bloody diarrhea, right lower quadrant cramping pain, and weight loss are typical. Transmural disease leads to fistulas, abscesses, strictures, and bowel obstruction.
What patient teaching is important for Crohn Disease?
Identify and avoid trigger foods; eat small frequent low-residue meals during flares. Take medications consistently even when feeling well to maintain remission. Report increasing pain, fever, drainage, or signs of obstruction promptly.
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Quick Tip
Inflammation is transmural and discontinuous with healthy skip areas between diseased segments.