Abdominal Pain Assessment

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Abdominal Pain Assessment - Pain Interrogation

SOCRATES mnemonic for pain assessment

  • 📌 Use SOCRATES for systematic pain history:
    • Site: Location? Localized/diffuse?
    • Onset: Sudden (perforation, ischemia) or gradual (inflammation)?
    • Character: Sharp, dull, colicky, burning?

      ⭐ Visceral pain: dull, poorly localized, midline (bilateral innervation). Parietal pain: sharp, well-localized, lateralized.

    • Radiation: To back, shoulder (Kehr's sign), groin?
    • Associated symptoms: N/V, fever, bowel changes (diarrhea/constipation), jaundice.
    • Timing: Duration, frequency, pattern (constant, intermittent)?
    • Exacerbating/Relieving factors: Food, position, medications?
    • Severity: Pain scale (0-10); effect on activity.

Abdominal Pain Assessment - Palpation Powwow

  • Method: Light palpation before deep. Assess tenderness (superficial/deep), guarding, rigidity.
  • Guarding Types:
    • Voluntary: Conscious tensing; often distractible.
    • Involuntary (Rigidity): Persistent muscle spasm; suggests peritonitis.
  • Key Palpation Signs:
    • Rebound Tenderness (Blumberg's): Pain on quick withdrawal; peritonitis.
    • Murphy's Sign: Inspiratory arrest on deep RUQ palpation; acute cholecystitis.
    • Rovsing's Sign: RLQ pain with LLQ palpation; appendicitis.
    • Psoas Sign: Pain on passive hip extension; retrocecal appendicitis.
    • Obturator Sign: Pain on passive internal hip rotation; pelvic appendicitis.

⭐ Carnett's sign (↑ pain on tensing abdominal muscles) suggests abdominal wall pain, not visceral.

Abdominal Pain Assessment - Region Riddles

Localize pain to narrow differentials. Key associations:

  • Epigastric Region:
    • Peptic Ulcer Disease (PUD), Gastritis, GERD
    • Acute Pancreatitis, Myocardial Infarction (MI)
  • Right Upper Quadrant (RUQ):
    • Cholecystitis, Cholelithiasis, Cholangitis
    • Hepatitis, Fitz-Hugh-Curtis syndrome
  • Left Upper Quadrant (LUQ):
    • Splenic disorders (infarct, rupture)
    • Gastritis, Pancreatitis (tail)
  • Periumbilical Region:
    • Early Appendicitis, Gastroenteritis
    • Small Bowel Obstruction (SBO)
    • Abdominal Aortic Aneurysm (AAA)
  • Right Lower Quadrant (RLQ):

    ⭐ RLQ pain: classic for appendicitis; consider Crohn's, ectopic pregnancy, ovarian torsion, Meckel's diverticulitis. Also: PID, urolithiasis.

  • Left Lower Quadrant (LLQ):
    • Diverticulitis, Sigmoid Volvulus
    • Ectopic pregnancy, Ovarian torsion
    • PID, urolithiasis
  • Suprapubic Region:
    • Acute Cystitis, Prostatitis
    • Pelvic Inflammatory Disease (PID), Uterine pathology

Abdominal Pain Assessment - Alarm Bells

Key indicators requiring urgent evaluation:

  • Vitals: Hypotension, tachycardia, fever
  • Exam: Peritonism (rigidity, rebound), distension, pulsatile mass
  • History: Sudden onset, severe pain, syncope, persistent vomiting, hematemesis, melena, age >50 with new onset

⭐ Sudden severe pain ('thunderclap'), hemodynamic instability, peritonism (rigidity, rebound), or pulsatile mass are RED FLAGS requiring urgent action.

Abdominal Pain Assessment - Diagnostic Dash

  • Initial Labs: CBC, CMP, LFTs, Amylase/Lipase, UA, Urine pregnancy test (females).
  • Imaging:
    • X-ray (obstruction, free air).
    • Ultrasound (gallbladder, GYN, appendicitis in children/pregnancy).
    • CT scan (most common, high yield for many conditions).

⭐ Serum lipase is more specific than amylase for acute pancreatitis and remains elevated longer. Beta-hCG is crucial in all women of childbearing age.

High‑Yield Points - ⚡ Biggest Takeaways

  • Visceral pain: dull, poorly localized, midline; Parietal pain: sharp, localized, worse with movement.
  • Referred pain: felt distant to organ (e.g., Kehr's sign for splenic rupture).
  • Acute cholecystitis: Murphy's sign (RUQ inspiratory arrest).
  • Appendicitis: McBurney's point tenderness, Rovsing's sign, Psoas/Obturator signs.
  • Red flags: sudden severe pain, hemodynamic instability, peritonism (rigidity, rebound).
  • Consider ectopic pregnancy in females of childbearing age with lower abdominal pain.

Practice Questions: Abdominal Pain Assessment

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