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Nursing Field Notes / GI ยท Pathophysiology Course

Appendicitis ๐Ÿšจ

The Classic RLQ Surgical Abdomen

NG-302 GI ADHD-friendly visual edition

Inflammation of the appendix, located in the RLQ (Right Lower Quadrant) of the abdomen. Untreated, it can perforate โ†’ peritonitis โ€” a medical emergency.

๐ŸŽฏ Pain migratesStarts at umbilicus โ†’ moves to RLQ / McBurney's point.
๐Ÿ™… 3 NEVERsNO heat ยท NO laxatives ยท NO enemas.
๐Ÿ’‰ NPO + IV fluids firstPain meds ONLY after the surgeon has seen the client.
๐Ÿšจ Sudden pain relief = ๐ŸšฉCan mean the appendix just ruptured โ€” not that it's "better."
๐Ÿงจ

CAUSE

STEP 1 ยท A BLOCKED TUBE

One obstruction explains the entire cascade โ€” from swelling to rupture.

๐Ÿงญ Where it lives & the obstruction โ†’ perforation cascade

RUQ LUQ RLQ LLQ umbilicus ๐Ÿ“ McBurney's point โ…“ way, ASIS โ†’ umbilicus ๐Ÿ“ˆ Obstruction โ†’ rupture ๐Ÿงฑ Fecalith blocks appendiceal lumen ๐Ÿ”ฅ Mucus builds, bacteria grow โ†’ inflammation ๐Ÿฉธ Swelling compresses blood flow โ†’ ischemia ๐Ÿ’ฅ Perforation โ†’ peritonitis (EMERGENCY) once ischemic, this moves fast โ€” hours, not days
๐Ÿง  "Blocked pipe, backed-up pressure, blown gasket." Fecalith blocks โ†’ pressure builds โ†’ tissue dies โ†’ the appendix bursts.

๐Ÿ”ค Common trigger

Most often a fecalith (hardened stool) obstructs the appendiceal lumen. Can also be lymphoid tissue swelling, a foreign body, or a tumor.

๐Ÿง  Appendicitis = "the left-behind organ that gets clogged." No real digestive job โ€” but it can still get plugged and become dangerous.

โš ๏ธ Why it's an emergency

  • ๐Ÿšซ The appendix has no room to swell โ€” a rigid tube
  • ๐Ÿฉธ Swelling โ†’ cuts off its own blood supply โ†’ ischemia
  • ๐Ÿ’ฅ Ischemic tissue ruptures โ†’ gut contents spill into the sterile peritoneal cavity
๐Ÿง  A ruptured appendix is a race against the clock โ€” this is why "watch and wait" is never the plan.
๐Ÿ”Ž

CLUES

STEP 2 ยท READ THE PAIN PATTERN

Where the pain starts, where it ends up, and what happens when you press and let go.

๐ŸŽฏ The classic pain migration โ€” this IS the exam question

COMMON EXAM QUESTION What's the typical pain presentation? Pain starts around the umbilicus, then moves to the right lower quadrant โ€” described as "pain between the right hip area and belly button."

๐Ÿ”ต Vague, dull pain around the umbilicus (belly button)
โ–ผ hours later
๐Ÿ”ด Sharp, localized pain at McBurney's point (RLQ)
๐Ÿง  Wrong-answer traps on this question: pain starting in the LUQ, radiating to the shoulder, or "diffuse all over" are distractors โ€” the correct pattern is umbilicus โ†’ RLQ.

๐Ÿšฉ Signs & symptoms

  • ๐ŸŒก๏ธ Low-grade fever
  • ๐Ÿ“ RLQ pain with rebound tenderness
  • ๐Ÿคข Nausea, vomiting, anorexia
  • ๐Ÿชต Rigid, "board-like" abdomen
  • ๐Ÿ’“ Tachycardia, tachypnea
1๏ธโƒฃ Press slowly mild discomfort only 2๏ธโƒฃ Release fast sharp pain spike = positive
๐Ÿง  "Rebound tenderness" = pain that spikes when you release the pressure, not when you press it โ€” this is the hallmark peritoneal sign.

๐Ÿงช Diagnostics

  • ๐Ÿงช CBC โ€” leukocytosis (โ†‘ WBC)
  • ๐Ÿ“ท CT scan โ€” confirms diagnosis
  • ๐Ÿ“ก Ultrasound โ€” preferred in children & pregnancy
  • โš ๏ธ Minimize repeated palpation โ€” raises perforation risk

๐Ÿšจ Complication: perforation = peritonitis โ€” a medical emergency

  • ๐ŸŒก๏ธ Fever โ€” over 100.3ยฐF
  • ๐Ÿคฒ Rebound tenderness
  • ๐Ÿชต "Rigid" or "board-like" abdomen
  • ๐Ÿ“ˆ Increasing pain, tenderness
  • ๐Ÿ˜ฐ Restless
  • ๐Ÿ’“ Fast HR & RR (tachycardia / tachypnea)
๐Ÿง  Sudden, total pain relief after hours of steady RLQ pain is NOT a good sign โ€” it can mean the appendix just ruptured and the pressure released. Report it immediately, don't chart it as "improved."
๐Ÿฉบ

CARE

STEP 3 ยท PROTECT THE SURGICAL PICTURE

Before surgery: don't mask it, don't move it, don't feed it. After surgery: get them up and breathing.

๐Ÿ’‰ Pre-op interventions, in order

1
๐Ÿšซ NPO โ€” nothing by mouth, surgery is likely
2
๐Ÿ’ง IV normal saline or LR (Lactated Ringer's)
3
๐Ÿ’Š Pain meds: IV morphine/hydromorphone โ€” ONLY after the surgeon has assessed the client
๐Ÿง  Why wait on pain meds? Masking the pain and exam findings too early can hide the very signs (rebound tenderness, location, rigidity) the surgeon needs to make the call.

โŒ The 3 NEVERs

๐Ÿ”ฅNO heat pador blanket
๐Ÿ’ŠNO laxatives 
๐Ÿ’ฆNO enemas 

All three can increase pressure or blood flow to an inflamed appendix and trigger rupture.

๐Ÿง  Constipation care (fiber, fluid, laxatives โ€” see NG-301) is the opposite of what an inflamed appendix needs.

๐Ÿ”ช Surgery: appendectomy

Definitive treatment โ€” surgical removal of the appendix, done urgently once diagnosis is confirmed to prevent rupture.

๐Ÿง  Appendectomy = PRIORITY once diagnosed โ€” this is not a "schedule it for next week" surgery.

๐Ÿฉน Post-op care

๐ŸšถEarly ambulation 
๐ŸŒฌ๏ธDeep breathe & cough+ incentive spirometer
๐Ÿ›Shower ONLYno tub baths
๐Ÿ‹๏ธAvoid heavy lifting 
๐Ÿ‘€Report redness/swelling/drainageat incision site

Prevent pneumonia: assist with early ambulation, deep breathing/coughing, incentive spirometer. Prevent infection: shower-only bathing, monitor incision.

๐ŸŒฌ๏ธ Incentive spirometer prevents pneumonia ๐Ÿ‘€ Incision check redness ยท swelling ยท drainage
๐Ÿง  "Walk, breathe, watch the wound." The three post-op jobs that prevent the two big complications โ€” pneumonia and wound infection.
โšก

QUICK RECALL

SAY IT OUT LOUD
๐ŸŽฏ Umbilicus โ†’ RLQthe classic pain migration.
๐Ÿ™… NO heat, laxatives, enemasall can trigger rupture.
๐Ÿ’‰ NPO + IV fluids firstpain meds only after surgeon sees them.
๐Ÿšจ Sudden relief = ๐Ÿšฉ rupturenot improvement โ€” report immediately.
๐ŸŽฏ Cover & check โ€” 4 rapid-fire questions
Q1: Describe the classic pain pattern of appendicitis.
Pain starts around the umbilicus, then migrates to the right lower quadrant (McBurney's point).
Q2: Name the 3 never-do interventions before an appendicitis diagnosis is confirmed.
No heat pad/blanket, no laxatives, no enemas โ€” all can increase pressure or blood flow and trigger rupture.
Q3: When can the client receive pain medication?
Only after the surgeon has assessed the client โ€” masking pain too early can hide key exam findings.
Q4: A client's RLQ pain suddenly disappears entirely โ€” what should you think?
Possible perforation/rupture, not improvement โ€” report immediately and watch for peritonitis signs (fever, rigid abdomen, tachycardia).
๐Ÿ“Œ

STUDY SHEETS

FROM YOUR SAVED SET
Appendicitis โ€” the blocked lumen, pain that starts at the umbilicus and moves to the right lower quadrant, and the NPO-before-surgery rule.
Appendicitis โ€” the blocked lumen, pain that starts at the umbilicus and moves to the right lower quadrant, and the NPO-before-surgery rule. — swipe it sideways if it is cut off, or tap to open it full size.

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