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Request a Comprehensive Stool Analysis Test Kit

I wonder if it's your gut?

The CDSA Level 4+ is the most comprehensive stool assessment available for the assessment of digestive, absorption, metabolic, inflammation and tumour ulcer markers. This CDSA Level 4+ stool test is recommended for individuals with gut related symptoms such as IBS, indigestion, dysbiosis, constipation, and diarrhoea.

The gut flora is as unique to you as your fingerprint. Your microbiome has many useful functions which include absorbing and producing nutrients, maintaining the gut lining to keep out toxins and unwelcome microorganisms, providing immunity, and producing mood regulating hormones. The microbiome can be disrupted by a number of lifestyle and environmental factors including medications and antibiotics, chronic constipation, stress and diet.

Dysbiosis is an unhealthy imbalance in the gut microbiome which not only affects bowel function (causing irritable bowel symptoms), but can also lead to inflammatory and autoimmune conditions such as rheumatoid arthritis, chronic fatigue syndrome and fibromyalgia, and even mental health problems. This comprehensive digestive stool analysis will show you if you have an undergrowth or overgrowth in specific gut microbes

What is tested?

Faecal Macroscopy

Macroscopy looks at stool colour and formation, as well as for evidence of mucous or blood which may require further investigation.

Digestive & Metabolic Markers

Microscopy is performed for detection of blood cells which may indicate infections or inflammation, as well as markers of maldigestion. The presence of food remnants may indicate poor digestion from too little gastric acid or reduced output from the pancreas

Inflammation Markers

Tumour/ Ulcer Markers

Beneficial Bacteria

Significant numbers of bacteria are normally present in the healthy gut. Lactobacilli and Bifidobacteria in particular, are essential for gut health because they help to inhibit gut pathogens and carcinogens, control pH, reduce cholesterol and synthesise vitamins.

Pathogenic Bacteria

These bacteria are pathogenic and are those that have the potential to cause disease in the gut.

Opportunistic and Dysbiotic Bacteria

Our gut bacteria can be divided into ‘bad’ and ‘good’. The good ones for the most part benefit us, whereas the bad 'pathogenic' ones can cause disease. Pathogens are usually present in small quantities in the microbiome, however in excessive amounts they can have adverse effects on the body. The beneficial bacteria of the microbiome have a protective function against colonisation by pathogenic bacteria.


This test looks for evidence of candida or other yeast overgrowth. Whilst yeasts are a normal inhabitant of the gastrointestinal tract, they may become an opportunistic pathogen after disruption of the mucosal barrier, imbalance of the normal intestinal flora or impaired immunity. This can be caused by things like antibiotics, antacids and stress.


Some gut problems can be a consequence of an undetected gut infection. A significant number of IBS (irritable bowel syndrome) cases could actually be due to undiagnosed gut parasites such as Blastocystis hominis and Dientamoeba fragilis.


Ordering your Advanced Comprehensive Stool Analysis test:

1. Click on the green button below

2. Enter your details

3. You will receive an email and invoice from iScreen (Cost $512.10)

3. Once invoice is paid the test kit will be mailed to you with complete instructions 

3. Book your follow-up appointment, allow approximately 14- 18 days after you have mailed your specimen for the results to be available. (Cost: $139.00)

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