Peritonitis

Background

  • Inflammation of serosal membrane lining abdominal cavity and intraabdominal organ
  • May be infectious (bacterial, viral, fungal) or sterile (mechanical, chemical)
  • Etiology

Clinical Features

Differential Diagnosis

Diffuse Abdominal pain

Evaluation

Work-up

  • Imaging = CT Abd/pelvis (preferred) or 3-view abdomen XR
    • Ultrasound may reveal certain etiologies
  • Other work-up based on clinical suspicion, and may include:
    • CBC, metabolic panel, coags, lipase, UA, stool studies
    • Diagnostic paracentesis to evaluate for SBP (PMN ≥ 250 cells/mm³)

Evaluation

  • Generally a clinical diagnosis

Management

  • Fluid resuscitation
  • Surgical consult
  • IR consult if requiring abscess drainage

Antibiotics

Intra-Abdominal Sepsis/Peritonitis

Harbor-UCLA Santa Monica-UCLA Other
Primary
Allergy or prior exposure

Disposition

  • Admit

See Also

External Links

References