What laboratory tests assess Inflammatory Bowel Disease?

Food-Specific Immunoglobulin G

IgG

Food-Specific Immunoglobulin A

IgA

Food-Specific Immunoglobulin G Subclass 4

IgG4

Faecal Calprotectin

FC

Short-Chain Fatty Acids (Acetate, Propionate, Butyrate)

SCFA

Zonulin

Tissue Transglutaminase IgA Antibody

tTG-IgA

Total Immunoglobulin A

IgA

Deamidated Gliadin Peptide IgG Antibody

DGP-IgG

Carcinoembryonic Antigen

CEA

Parasites (Ova, Cysts, Trophozoites)

Parasites

Faecal Calprotectin

Calprotectin

Secretory Immunoglobulin A

sIgA

Faecal pH

pH

Beta-Glucuronidase

β-Gluc

Microbial diversity (Shannon index)

Shannon H'

Campylobacter species

Campylobacter

Endomysial IgA Antibody

EMA-IgA

Interleukin 17F Gene Variant

IL17F SNP

Tumour Necrosis Factor Alpha Gene Variant

TNF-α SNP

Transforming Growth Factor Beta 1 Gene Variant

TGF-β1 SNP

Fecal Lactoferrin

fLF

Lipopolysaccharide-Binding Protein

LBP

Diamine Oxidase

DAO

Intestinal Fatty Acid-Binding Protein

I-FABP

Pathogenic Bacterial Isolates

Culture

Antimicrobial Susceptibility Testing

AST

Clostridioides difficile Toxin A (Enterotoxin)

C. diff Toxin A

Clostridioides difficile Toxin B (Cytotoxin)

C. diff Toxin B

C-Reactive Protein

CRP

Commensal Bacterial Flora

Commensal Flora

Opportunistic and Pathogenic Bacteria

Opportunistic Pathogens

Yeast and Fungal Organisms

Yeast

Faecal Elastase-1

Elastase-1

Faecal Secretory IgA

sIgA

Faecal Pancreatic Elastase-1

PE-1

Faecal Occult Blood

FOB

Beneficial Bacteria: Lactobacillus spp.

Lactobacillus

Beneficial Bacteria: Bifidobacterium spp.

Bifidobacterium

Pathogenic Bacteria

Pathogens

Yeast and Fungi

Yeast

Pancreatic Elastase-1

PE-1

Faecal Fat (Steatocrit or Qualitative)

Steatocrit

Faecal Occult Blood

FOB

Pathogen PCR Detection Panel

Pathogen PCR

Bacterial Taxa Relative Abundance (Phylum, Family, Genus, Species)

Taxa %

Pancreatic Elastase-1

PE-1

Faecal Calprotectin

Calprotectin

Faecal Secretory IgA

sIgA

Commensal Bacteria Abundance (PCR panel)

Commensals

Pathogenic Bacteria, Parasites & Yeast Screen

Pathogens

Molecular Gastrointestinal Pathogen Detection (multiplex PCR/qPCR — bacterial, parasitic, and viral targets)

Molecular Pathogens

Microbiome Abundance and Dysbiosis Index (qPCR relative abundance of keystone/commensal organisms with a proprietary composite score)

Dysbiosis Index

Digestion and Absorption Markers (pancreatic elastase-1 and products of digestion)

Digestion/Absorption

Gut Inflammation and Immunology Markers (calprotectin, secretory IgA, eosinophil protein X)

Inflammation/Immunology

Gut Metabolic Markers (short-chain fatty acids, beta-glucuronidase, faecal pH)

Gut Metabolic

Culture, Mycology, and Parasitology (MALDI-TOF-identified culture with susceptibilities, yeast/fungi, and microscopic ova-and-parasite examination with immunoassays)

Culture/Mycology/Parasitology

Zonulin (Faecal), by immunoassay

Zonulin