Abdominal pain, constipation and diarrhea

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Abdominal pain Microchapters

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Patient Information

Overview

Classification

Pathophysiology

Causes

Diffuse Abdominal Pain
Left Upper Quadrant
Left Flank
Left Lower Quadrant
Epigastric Quadrant
Umbilical Region
Pelvic Region
Right Upper Quadrant
Right Flank
Right Lower Quadrant
Intraperitoneal
Extraperitoneal

Differentiating Abdominal pain from other Diseases

Epidemiology and Demographics

Risk Factors

Screening

Natural History, Complications and Prognosis

Diagnosis

History and Symptoms

Physical Examination

Laboratory Findings

Electrocardiogram

X Ray

CT

Other Imaging Findings

Other Diagnostic Studies

Treatment

Medical Therapy

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Primary Prevention

Secondary Prevention

Cost-Effectiveness of Therapy

Future or Investigational Therapies

Case Studies

Case #1

Abdominal pain On the Web

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Risk calculators and risk factors for Abdominal pain

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1];Associate Editor(s)-in-Chief: Iqra Qamar M.D.[2]Amandeep Singh M.D.[3]

Abbreviations: RUQ= Right upper quadrant of the abdomen, LUQ= Left upper quadrant, LLQ= Left lower quadrant, RLQ= Right lower quadrant, LFT= Liver function test, SIRS= Systemic inflammatory response syndrome, ERCP= Endoscopic retrograde cholangiopancreatography, IV= Intravenous, N= Normal, AMA= Anti mitochondrial antibodies, LDH= Lactate dehydrogenase, GI= Gastrointestinal, CXR= Chest X ray, IgA= Immunoglobulin A, IgG= Immunoglobulin G, IgM= Immunoglobulin M, CT= Computed tomography, PMN= Polymorphonuclear cells, ESR= Erythrocyte sedimentation rate, CRP= C-reactive protein, TS= Transferrin saturation, SF= Serum Ferritin, SMA= Superior mesenteric artery, SMV= Superior mesenteric vein, ECG= Electrocardiogram

Disease Clinical manifestations Diagnosis Comments
Symptoms Signs
Abdominal Pain Fever Rigors and chills Nausea or vomiting Jaundice Constipation Diarrhea Weight loss GI bleeding Hypo-

tension

Guarding Rebound Tenderness Bowel sounds Lab Findings Imaging
Acute diverticulitis LLQ + ± + + ± + Positive in perforated diverticulitis + + Hypoactive
  • CT scan
  • Ultrasound
Irritable bowel syndrome Diffuse ± ± + N Normal Normal Symptomatic treatment
Colon carcinoma Diffuse/localized ± ± + + ±
  • Normal or hyperactive if obstruction present
  • CBC
  • Carcinoembryonic antigen (CEA)
  • Colonoscopy
  • Flexible sigmoidoscopy
  • Barium enema
  • CT colonography 
  • PILLCAM 2: A colon capsule for CRC screening may be used in patients with an incomplete colonoscopy who lacks obstruction