NCLEX Review Guide: Ulcerative Colitis

Understanding Ulcerative Colitis

• Ulcerative colitis is a chronic inflammatory bowel disease (IBD) that affects the colon and rectum only, causing continuous mucosal inflammation.
• Unlike Crohn's disease, UC involves only the superficial mucosa and submucosa in a continuous pattern starting from the rectum.
• The inflammation creates pseudopolyps and increases the risk of colorectal cancer with long-term disease.

Signs and Symptoms

• Bloody diarrhea with mucus is the hallmark symptom, occurring 10-20 times daily during flares.
• Abdominal cramping and tenesmus (feeling of incomplete evacuation) are common complaints.
• Systemic symptoms include weight loss, fatigue, anemia, and low-grade fever during active disease.
• Extra-intestinal manifestations may include arthritis, uveitis, and skin lesions (erythema nodosum).

Key Diagnostic Methods

• Colonoscopy with biopsy is the gold standard for diagnosis, showing continuous mucosal inflammation and pseudopolyps.
• Laboratory tests include CBC (anemia, elevated WBC), comprehensive metabolic panel (electrolyte imbalances), and inflammatory markers (ESR, CRP).
• Stool studies rule out infectious causes and may show blood, mucus, and elevated calprotectin levels.

Pharmacological Interventions

• Aminosalicylates (mesalamine, sulfasalazine) are first-line therapy for mild to moderate disease, reducing inflammation in the colon.
• Corticosteroids (prednisone, budesonide) provide rapid symptom relief during flares but are not used for maintenance due to side effects.
• Immunosuppressants (azathioprine, methotrexate) and biologics (infliximab, adalimumab) are reserved for moderate to severe disease.

1. Assess disease severity and symptom pattern
2. Administer medications as prescribed with food if indicated
3. Monitor for therapeutic response and adverse effects
4. Educate patient on medication compliance and timing
5. Document response to treatment and any side effects

Dietary Considerations

• During flares, recommend a low-residue, bland diet to minimize bowel irritation and reduce stool frequency.
• Avoid trigger foods including high-fiber foods, dairy products, spicy foods, and caffeine during active disease periods.
• Monitor nutritional status closely due to malabsorption, blood loss, and decreased oral intake during flares.
• Encourage adequate hydration and electrolyte replacement, especially potassium and magnesium due to diarrheal losses.

Serious Complications

• Toxic megacolon is a life-threatening complication requiring immediate surgical intervention and intensive monitoring.
• Massive hemorrhage can occur during severe flares, requiring blood transfusion and possible emergency colectomy.
• Long-term UC increases colorectal cancer risk, requiring regular surveillance colonoscopies every 1-2 years after 8-10 years of disease.
• Perforation, though rare, can occur with toxic megacolon and requires emergency surgery.