Diagnostic Tests for Loose stool
Diagnostic Test list for Loose stool:
The list of diagnostic tests
mentioned in various sources as
used in the diagnosis of Loose stool
- Physical examination
- Abdominal examination for tenderness and a mass - e.g. a mass in the right lower abdomen may suggest bowel cancer or diverticulitis; a mass on right, left or upper abdomen may also suggest bowel cancer; tenderness in the left lower abdomen, with or without a significant mass may suggest ulcerative colitis, diverticulitis or irritable bowel syndrome.
- Xamine rectum for hemorrhoids and anal fissure that may be causing a positive occult blood test
- Examine for signs of systemic diseases that may cause loose stools - e.g. tremor and increased heart rate of hyperthyroidism; considerable flushing of carcinoid syndrome; hyperpigmentation of the skin in Addison's disease; and dermatitis and dementia of pellagra.
- Blood tests
- Full blood count and ESR, Electrolytes and thyroid function tests if systemic disease is suspected to be the cause of diarrhea
- Salmonella antibodies (not useful in acute situation)
- Amoeba antibodies (not useful in acute situation)
- HIV test, if suspected on history
- Gastrin level, if suspect a gastrinoma (Zollinger-Ellison syndrome)
- Stool tests
- Test for occult blood (if positive may suggest infectious disease of the large intestine or small intestine, ulcerative colitis, bowel cancer, diverticulitis, Zollinger-Ellison syndrome)
- Stool microscopy for ova, parasites and culture for bacteria
- Giardia antigen
- Clostridium difficile toxin B, if history of antibiotic use
- 24 hour Stool analysis of fecal fat - if steatorrhea is present (i.e. fatty, pale colored, extremely smelly stools that float in the toilet and are difficult to flush away due to excess fat in the stool).
- Urine tests
- Urine collection for microscopy and culture, if person with loose stools is a child. Children with Urinary tract infections may have loose stools
- 5-HIAA, if suspect Carcinoid syndrome
- Radiological investigations
- Barium enema
- Sigmoidoscopy and/or colonoscopy with or without a small bowel aspiration and biopsy - if loose stools persist or if blood is present ( may be required to detect bowel cancer, bowel polyps, celiac disease, Giardia infection.
Home Diagnostic Testing
These home medical tests may be relevant to Loose stool causes:
- Colon & Rectal Cancer: Home Testing
- Food Allergies & Intolerances: Home Testing:
- Digestive-Related Home Testing:
Conditions listing medical symptoms: Loose stool:
The following list of conditions
have 'Loose stool' or similar
listed as a symptom in our database.
This computer-generated list may be inaccurate or incomplete.
Always seek prompt professional medical advice about the cause
of any symptom.
Select from the following alphabetical view of conditions which
include a symptom of Loose stool or choose View All.
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