Complete Digestive Stool Analysis (CDSA) Level 4

The Complete Digestive Stool Analysis (CDSA 4) is a functional test that provides an overview of the components of digestion, absorption, intestinal function and microbial flora, as well as identifying pathogenic bacteria, parasites and yeasts.

The CDSA is a non-invasive test providing invaluable information for the patient and practitioner in terms of understanding the role of poor digestive function in disease states.  Poor digestive function and imbalanced gut flora may play a crucial role in the underlying cause of a number of health conditions. Symptoms such as constipation, diarrhoea, flatulence, bloating, abdominal discomfort and bad breath are all indicative of poor gut function.

CDSA Level 4 Includes:

  • Bacteriology
  • Mycology (Yeasts)
  • 3 Day Parasitology
  • Short Chain Fatty Acids
  • Biochemical Markers (Pancreatic Elastase, Valerate/ IsoButyrate)
  • Sensitivities (Bacteria/ Yeasts)

Test Kit

After the practitioner has provided a request form, the patient can order their CDSA Level 4 online at Each test kit contains full instructions.

Specimen Requirements:

Stool Samples - Home testing kit

The test kits provided contain everything required to complete this test.

Patient Preparation:

  • Patients must follow their usual diet prior to collecting a stool specimen
  • The stool specimen must be collected in the morning, where possible or the first bowel motion of the day
  • If the patient is currently taking antibiotics, only proceed with this collection two weeks after the patient can completed the course of probiotic therapy.
  • Natural laxatives can be used if constipation is a problem. This includes herbal and nutritional supplements. Do not use pharmaceutical laxatives as these medications can alter test results.

Turnaround Time:

The standard turnaround time for this test is 10-14 business days.



Additional $20.00 postage & handling fee applies to this test.


Prepayment is required when ordering test kit.



Companion Tests:

  • Intestinal Permeability (IP)
  • FoodPrint Food Sensitivity Profile

The Intestinal Permeability (IP) test may also be a useful adjunct to the CDSA. A “leaky gut” may contribute to or be caused by poor digestive function. These tests are commonly requested together. Combining the CDSA and the IP tests will provide a comprehensive overview of gut function and alert the practitioner to the additional need for gut repair.

Food sensitivities will also contribute to poor digestion and gut inflammation. The IgG FoodPrint Food Sensitivity Profile is a blood test which screens for IgG antibodies to a panel of foods. This test is recommended with the CDSA when food sensitivity is suspected as an underlying cause of digestive dysfunction.