CourseLesson 66 of 165
    Crohn's Colin — NCLEX story mnemonic character for Inflammatory Bowel Disease (Crohn's vs Ulcerative Colitis)
    Gastrointestinal & Renal

    Crohn's Colin

    Inflammatory Bowel Disease (Crohn's vs Ulcerative Colitis)

    Written lecture — video coming

    The memory hook

    Skip lesions and fistulas mean Crohn's; continuous rectal bleeding means ulcerative colitis

    The story

    Colin has battled cramping right lower quadrant pain and unpredictable diarrhea for years, along with mouth ulcers and weight loss he can't explain. Lately a strange, foul-smelling drainage near his anus turns out to be a new fistula tract.

    Colin is a passionate landscape architect known for designing gardens with deliberately scattered, disconnected planting beds rather than one continuous flower border, a signature style his colleagues affectionately tease him about, nicknaming him Crohn's Colin. That whimsical nickname unknowingly foreshadowed the autoimmune disease quietly brewing within his own digestive tract. Unlike a continuous inflammatory process, Colin's inflammatory bowel disease produces patchy, discontinuous areas of transmural inflammation called skip lesions, capable of striking anywhere from his mouth all the way down to his anus. This full-thickness bowel wall involvement, unlike the mucosal-only inflammation of ulcerative colitis, predisposes Colin to devastating complications including fistulas, strictures, and abscesses wherever those scattered inflammatory patches take root.

    Colin's health troubles began subtly in his mid-twenties with intermittent right lower quadrant cramping that seemed to come and go without any clear dietary trigger. He noticed unpredictable episodes of watery, non-bloody diarrhea alternating with days of relative normalcy, alongside gradual, unintentional weight loss that alarmed his family. Small, painful aphthous ulcers appeared inside his mouth periodically, and his knees occasionally ached with unexplained arthralgia. Colin attributed everything to work-related stress and skipped several follow-up appointments, unaware that chronic transmural inflammation was steadily damaging the full thickness of his intestinal wall and setting the stage for a serious structural complication brewing quietly beneath the surface.

    The complication finally became undeniable when Colin noticed persistent perianal discomfort accompanied by an unusual, foul-smelling drainage staining his undergarments. Examination revealed a draining fistula tract connecting his inflamed bowel directly to his perianal skin. Admitted for evaluation, his laboratory results revealed a hemoglobin of only 9.8 grams per deciliter reflecting chronic occult blood loss, alongside a critically low albumin level of 2.4 grams per deciliter indicating severe protein malabsorption. His abdomen grew increasingly distended, his temperature spiked, and imaging raised serious concern for either an intra-abdominal abscess or a partial bowel obstruction developing near one of his chronically inflamed segments.

    The nursing team immediately placed Colin on strict bowel rest with nothing by mouth to reduce mechanical stress on his inflamed intestines, while initiating intravenous fluids and comprehensive nutritional support to correct his severe malnutrition. Prescribed corticosteroids and biologic therapy targeting inflammatory pathways were administered to induce remission, while the nurse carefully assessed his perianal fistula for worsening drainage, odor, or surrounding skin breakdown at every shift. Surgery was deliberately reserved only for complications like strictures, fistulas, or perforation, since the nursing team understood that, unlike ulcerative colitis, removing Colin's colon would never cure his underlying transmural autoimmune disease process.

    The setup

    Colin, in his twenties, develops intermittent RLQ cramping, non-bloody diarrhea, and unintentional weight loss over several months.

    The turn

    Colin develops perianal pain and notices a small opening draining stool-tinged fluid near his rectum, along with mouth sores and joint aches.

    The crisis

    Colin is admitted dehydrated, with a hemoglobin of 9.8 g/dL, albumin of 2.4 g/dL, and worsening abdominal distention with high fever, raising concern for a bowel obstruction or abscess.

    The save

    The nurse keeps Colin NPO during the acute flare, initiates IV fluids and nutritional support, administers prescribed corticosteroids and biologics, and monitors closely for signs of perforation or toxic megacolon.

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