i-Screen i-Screen

Microbiome Check

Type

Blood Testing

Biomarkers

56

Duration

30 min

Results

5 days

Comprehensive microbiome test analyzing beneficial and pathogenic bacteria, parasites, and yeast.

Digestive and gut health blood tests evaluate markers related to gastrointestinal function, inflammation, and infection. These may include calprotectin (a stool marker for intestinal inflammation that helps distinguish IBS from IBD), H. pylori testing (the bacterium that causes stomach ulcers and is linked to gastric cancer), bile acid levels, and various antibody tests. Gut health is increasingly recognized as central to overall wellness, with the gut microbiome influencing immune function, mental health, nutrient absorption, and systemic inflammation. Testing can help identify treatable conditions causing chronic digestive symptoms.

Key Details

Tests
Varies by panel
Fasting Required
Varies
Sample Type
Blood draw and/or stool sample
Turnaround
3–7 business days
Common Use
IBS/IBD differentiation, gut health assessment

Who Is This For?

Anyone with chronic digestive symptoms like bloating, pain, diarrhea, or constipation. People suspected of having inflammatory bowel disease (Crohn's or ulcerative colitis). Those with a history of stomach ulcers or H. pylori infection. Anyone interested in optimizing their gut health as part of a broader wellness strategy.

What's Included

Specific markers vary by panel
May include H. pylori antibodies, celiac markers, or stool analysis

Preparation Required

Preparation varies by specific test. Blood-based tests generally don't require fasting. Stool-based tests require a sample collection kit provided by the lab. Some tests may require stopping certain medications (e.g., proton pump inhibitors for H. pylori) — check with your provider.

Biomarkers Tested

56
Stool Colour observed

Brown is normal; other colors may indicate abnormal gastrointestinal conditions.

Stool Form observed

Variations may indicate abnormal gastrointestinal conditions.

Mucous observed

Mucous production may indicate infection, inflammation, or malignancy.

Faecal Occult Blood observed

Detects bleeding in the digestive tract, indicating potential disease.

pH pH units

Imbalances in gut pH influence short-chain fatty acid production and their effects.

Red blood cells detected/not detected

Presence may indicate infection, inflammation, or hemorrhage.

White Blood Cell Count × 10⁹/L

Measures the total number of white blood cells, your body's primary defense against infection. Elevated levels may indicate infection, inflammation, or immune disorders, while low levels can signal bone marrow problems or autoimmune conditions.

Food remnants observed

Presence may indicate maldigestion.

Meat fibres µg/g

Presence may indicate maldigestion from too little gastric acid or reduced pancreatic output.

Vegetable fibres µg/g

Presence may indicate maldigestion from gastric hypoacidity or diminished pancreatic output.

Fat globules µg/g

Elevated levels may indicate inadequate lipid absorption (steatorrhea).

Starch µg/g

Presence may indicate carbohydrate maldigestion.

Bifidobacteria longum detected/not detected

Beneficial bacteria; essential for gut health.

Bifidobacteria bifidum detected/not detected

Beneficial bacteria; essential for gut health.

Bifidobacteria animalis detected/not detected

Beneficial bacteria; essential for gut health.

Bifidobacteria breve detected/not detected

Beneficial bacteria; essential for gut health.

Eschericia coli detected/not detected

Most strains are harmless; some are pathogenic.

Lactobacilli plantarum detected/not detected

Beneficial bacteria; essential for gut health.

Lactobacilli rhamnosus detected/not detected

Beneficial bacteria; essential for gut health.

Lactobacilli paracasei detected/not detected

Beneficial bacteria; essential for gut health.

Lactobacilli casei detected/not detected

Beneficial bacteria; essential for gut health.

Lactobacilli acidophilus detected/not detected

Beneficial bacteria; essential for gut health.

Enterococci detected/not detected

Helps maintain microbiome balance.

Aeromonas detected/not detected

Aeromonas are bacteria that can cause an acute diarrhoeal illness.

Campylobacter detected/not detected

Campylobacter infection (campylobacteriosis) is a bacterial infection which most commonly causes gastroenteritis.

Salmonella detected/not detected

Salmonella infection usually results from ingestion of the bacteria from contaminated food, water or hands.

Shigella detected/not detected

Shigella infection (shigellosis) is a type of gastroenteritis caused by Shigella bacteria.

Yersinia detected/not detected

This infectious bacteria can cause gastroenteritis and symptoms beyond the gut.

Pseudomonas detected/not detected

Opportunistic pathogen found in various environments.

Streptococcus mitis detected/not detected

Common in gut flora; rarely implicated in gastric disease.

Streptococcus sanguinis detected/not detected

Common in gut flora; rarely implicated in gastric disease.

Streptococcus anginosus detected/not detected

Common in gut flora; rarely implicated in gastric disease.

Streptococcus parasanguinis detected/not detected

Common in gut flora; rarely implicated in gastric disease.

Streptococcus dysgalactiae detected/not detected

Common in gut flora; rarely implicated in gastric disease.

Streptococcus salivarius detected/not detected

Common in gut flora; rarely implicated in gastric disease.

Streptococcus mutans detected/not detected

Common in gut flora; rarely implicated in gastric disease.

Enterococcus faecalis detected/not detected

E. faecalis is commonly found in the gut. In some cases E. faecalis can overgrow in the vagina and cause an infection, leading to symptoms such as abnormal vaginal discharge, odour, itching, and pain during sex or urination.

Enterococcus faecium detected/not detected

Part of normal gut flora; can be implicated in infections.

Enterococcus casseliflavus detected/not detected

Part of normal gut flora; can be implicated in infections.

Enterococcus durans detected/not detected

Part of normal gut flora; can be implicated in infections.

Mucoid Eschericia Coli detected/not detected

Most strains are harmless; some are pathogenic.

Enterobacter asburiae detected/not detected

Rarely associated with gastrointestinal infection.

Enterobacter kobei detected/not detected

Rarely associated with gastrointestinal infection.

Citrobacter freundii detected/not detected

A gram-negative bacterium found in the gut, soil, and water. While part of normal intestinal flora, it can cause urinary tract infections, respiratory infections, and bloodstream infections in immunocompromised patients.

Klebsiella oxytoca detected/not detected

A gram-negative bacterium found in the gut and environment. It causes urinary tract infections, pneumonia, and antibiotic-associated haemorrhagic colitis. Can produce extended-spectrum beta-lactamases, conferring antibiotic resistance.

Candida albicans detected/not detected

Candida albicans is a type of yeast that normally inhabits the vagina, but can sometimes overgrow and cause a yeast infection. This can occur due to factors such as antibiotic use, hormonal changes, or a weakened immune system. Symptoms may include itching, burning, and discharge.

Candida parapsilosis detected/not detected

C. parapsilosis can cause vaginal yeast infections, particularly in women who have received previous antifungal treatment. Symptoms may include itching, burning, and discharge. Treatment typically involves antifungal medications.

Candida glabrata detected/not detected

C. glabrata is a type of yeast that can cause vaginal yeast infections, particularly in women who are immunocompromised or have had antibiotics. Symptoms can include itching, burning, and discharge. C. glabrata can be more resistant to certain treatments compared to other Candida species.

Geotrichum detected/not detected

Yeast found in various environments; opportunistic pathogen.

Rhodotorula detected/not detected

Common environmental yeast; not considered pathogenic.

Other yeasts detected/not detected

Indicates potential yeast overgrowth.

Cryptosporidium detected/not detected

Cryptosporidium is a microscopic parasite that causes the diarrhoeal disease cryptosporidiosis.

Giardia lamblia detected/not detected

Symptoms of Giardia infection can occur with 3 to 25 days and may include diarrhoea, nausea, vomiting, pale greasy foul-smelling stools, stomach cramps, passing excess gas, bloating, weight loss and fatigue.

Entamoeba histolytica detected/not detected

Amoebiasis is a parasitic disease (also known as amoebic dysentery) caused by infection with Entamoeba histolytica.

Blastocystis hominis detected/not detected

Some research suggests that people with IBS may be more likely to have Blastocystis hominis organisms in their stool.

Dientamoeba fragilis detected/not detected

The bacteria can be present in the gut for months or year and misdiagnosed as IBS.

Frequently Asked Questions