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    Chapter 90 of 165 · Gastrointestinal & Renal

    Appendix Annie — Appendicitis & Peritonitis

    Pain migrates to McBurney's point, then suddenly stops — that relief can mean rupture, not recovery

    Appendix Annie, the MnemoNurse character for Appendicitis & Peritonitis

    Annie's stomachache started near her belly button after dinner but has now settled sharply into her right lower abdomen. She winces when the nurse releases pressure over McBurney's point, and by morning her pain vanishes entirely — which worries the nurse more than it reassures her.

    Annie's vermiform appendix becomes obstructed, distends, and its blood supply is choked off. Pain classically starts periumbilically and migrates to the right lower quadrant at McBurney's point, with rebound tenderness and guarding. The most dangerous trap is sudden, complete pain relief — it can mean the appendix has ruptured and pain fibers are no longer being stretched, not that the problem resolved. Once perforated, peritonitis sets in with rigid, board-like abdomen and sepsis risk.

    Read Appendix Annie's full story →

    The story arc

    1. The setup

      Annie develops vague periumbilical pain, low-grade fever, and anorexia that she blames on last night's takeout.

    2. The turn

      Within hours the pain migrates and sharpens over the right lower quadrant, worsened by coughing, walking or extending her right hip.

    3. The crisis

      Annie's pain abruptly disappears, but soon her abdomen becomes rigid and board-like, her temperature spikes to 39.4°C, and her heart rate climbs to 128.

    4. The save

      The nurse keeps Annie NPO, avoids heat or laxatives, avoids repeated abdominal palpation, positions her in semi-Fowler's, and prepares her urgently for an appendectomy while starting IV fluids and antibiotics.

    NCLEX study section — Appendicitis & Peritonitis

    What this chapter is testing: the recognition cues, the numbers and the priority action.