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About the test
What is this test done for?
Stool analysis, commonly known as stool routine test, is a commonest stool test done to evaluate conditions affecting gastro-intestinal tract. It helps in detecting conditions like infections (bacteria, virus or parasites), poor nutrition (malabsorption) or cancers.
Why is it Done?
This is a routine test done for evaluating physical aspects like its color, consistency, odor, pH and presence of mucus; also for evaluating chemical aspects like presence of occult blood (hidden blood), fat, bile, fibres and sugars; and finally microscopic aspects like presence of parasites, bacteria, blood or white blood cells (pus cells).These things help in determining presence or absence of infection, malnutrition or cancers of GI tract.
When should it be performed?

This test is performed

  • If a patient has symptoms of diarrhea
    • Loose watery stools
    • Increased bowel frequency
    • Abdominal cramps
    • Abdominal bloating
    • Nausea
    • Fever
    • Dehydration
  • If a patient has symptoms of dysentery
    • Loose watery stools
    • Stools mixed with blood
    • Mucus in stool
    • Severe abdominal cramps
    • Fever
    • Dehydration
    • Loss of appetite
  • If a patient is having symptoms of colon cancer like passing loose, dark colored stools and complaining of weight loss
  • If a patient is having symptoms of worm infection or parasitic infection
  • To monitor therapy, while giving deworming medications or for cancer therapy
How is it done
An early morning stool sample is collected in a clean sterile container. Before collecting the sample you must urinate, so that you don’t urinate in the container. Collect your stool in the container, by wearing gloves while collecting the sample. Sample should be shared with lab within an hour of collection.

The test result is normal, if

  • Stool does not contain mucus, blood, pus, bacteria or parasites
  • pH of stool is between 7-7.4
  • Stool contains no or least sugar and fat globules
  • Consistency of stool is soft, brown and well formed

This means absence of gastro-intestinal tract affections like infection, malabsorption or cancers

The test result is abnormal, it contains

  • Bacteria or parasites (or their ovum or ova), which means
    • Bacterial infection
    • Parasitic infection
  • Blood
    • Colon cancer
    • Inflammatory bowel disease
    • Dysentry
  • Pus cells
    • Infection
    • Cancer
  • Mucus
    • Infection by bacteria or parasites
    • Inflammatory bowel diseases
  • pH of stool is below 7 or above 7.5
  • High amount of sugars
    • Malabsorption
  • High amount of fats
    • Malabsorption
  • Consistency is liquidy or hard
Other Tests
  • CBC
    • It is a blood test carried out to evaluate hemoglobin, RBC, WBC and platelet count of the blood
    • Very high WBC (white blood cells) count suggest infection
  • Stool culture
    • It is a specialized evaluation of stool
    • Presence of bacteria indicate infection
    • It is a routine blood test carried out to detect typhoid
    • Positive results mean typhoid infection
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