3
Dec
2020

GI Testing

Terms: Uncategorized

GI Testing

 

Name of Test What is being tested
   
Infection  
Stool

O & P  (ova and parasite)

Parasite testing
Stool

Culture (bacterial)

Bacterial testing
Yeast  (yeast) throat Culture, Yeast with Limited Susceptibility – Susceptibility testing may be performed for yeast (Candida species) and other rapidly growing yeast isolates
Stool

H.pylori

Helicobacter pylori Antigen, EIA, Stool – Colonization with H. pylori is associated with increased risk of patients developing gastritis, peptic ulcer disease, and gastric adenocarcinoma. Stool antigen testing provides a sensitive measure of infection including during and after treatment.
   
Gut Microbiota testing  
Stool

Microbiome composition by PCR

Stool test using PCR testing to amplify dna microbiota composition.
Urine

Organic acid testing

For dysbiosis diagnosis

Organic acids in urine can be used to indicate gut dysbiosis,
 

IBD Marker

 
Stool

Calprotectin

fecal calprotectin levels may assist in diagnosis of inflammatory bowel disease; Crohn’s disease and ulcerative colitis
   
   
Stool tests for wbc and rbc presence  
Lactoferrin  Lactoferrin is a marker for fecal leukocytes and a positive result is an indicator of intestinal inflammation.
Fecal hemoccult Indication of blood in stool,
Leukocytes Fecal Leukocyte Stain – The presence of leukocytes is an indicator of inflammation. Generally, inflammation is a product of bacteria-host interaction.
   
   
Digestive function Stool  
   
Fecal fat (72 Hour collection) indicates issues with fat digestion and absorption
Pancreatic elastase level Aid in diagnosis of  pancreatic dysfunction function.
   
Blood  
Candida Candida Immune Complex – Candida Immune Complexes which form in vivo are comprised of Candida Albicans antigen, anti-Candida IgG antibodies, and complement. The presence of these complexes is an indication of overgrowth of C. albicans in the gut.
Nutrient testing for

Omega 3 fatty acid

Minerals

Vitamins

Indication for malabsorption of nutrients
   
   
   
Breath testing  
SIBO

Glucose

Galactose-

Small intestinal bowel overgrowth,

Indicated with positive test results.

h.pylori breath test Helicobacter pylori, Urea Breath Test – Helicobacter pylori is a gram-negative microaerophilic curved bacillus with an affinity for human gastric mucosa. H. pylori has been identified as an important pathogen in the upper GI tract. The casual relationship between H. pylori and chronic active gastritis, duodenal ulcers, and gastric ulcers has been well documented.

 

Fructose Breath test Evaluates the presence of fructose malabsorption
Lactose breath test Evaluates for lactose intolerance