Table 9 -- Diagnostic tests for GI causes in patients with chronic nausea and vomiting
Test Conditions diagnosed Availability
Contrast Xray studies
   
UGI
Esophagitis
Peptic ulcer disease
Esophageal perforation

Widely available
Small bowel  follow-through

Small bowel mass or stricture
Crohn's disease
Intussusception
Widely available
Abdominal ultrasound

Cholecystitis
Appendicitis
Biliary duct obstruction
Cholelithiasis

Widely available
CT abdomen

Pancreatitis
Intra-abdominal mass
Intra-abdominal bleeding
Widely available
Gastric emptying study

Gastroparesis Widely available
EGD

GERD
Esophageal infections
Esophageal mass
Peptic ulcer disease

GI referral
24h pH study/
Manometry


GERD, esophageal dysmotility
Achalasia

GI referral
Electrogastrography

Gastric dysmotility syndromes GI referral
Upper GI tract manometry

Gastric/small bowel dysmotility syndromes Tertiary care centers