Stool Chemistries-Doctor's Data Kit

Note: This is a home collection test kit that will be mailed to you.


Fasting Required: No

Specimen: Stool

Results: 10-14 Business Days
Note: Result turnaround times are an estimate and are not guaranteed. Our reference lab may need additional time due to weather, holidays, confirmation/repeat testing, or equipment maintenance.

Special Instructions: If you are taking antifungal or antibiotic medications, please finish the course of medication, and then wait three days before starting this collection. Please refrain from taking digestive enzymes, laxatives (particularly mineral oil and castor oil), antacids, aspirin, and substances containing barium and/or bismuth for two days prior to and during the specimen collection, unless otherwise instructed by your physician. Refrain from taking probiotic supplements for two weeks prior to specimen collection unless instructed otherwise by your physician. To properly assess fat absorption, be sure to consume normal amounts of dietary fat.

Description: The Stool Chemistry test can provide important information regarding the efficiency of digestion and absorption can be gleaned from the measurement of the fecal levels of elastase (pancreatic exocrine sufficiency), fat, muscle and vegetable fibers, and carbohydrates. Inflammation can significantly increase intestinal permeability and compromise assimilation of nutrients. The extent of inflammation, whether caused by pathogens or inflammatory bowel disease (IBD), can be assessed and monitored by examination of the levels of biomarkers such as lysozyme, lactoferrin, white blood cells and mucus. These markers can be used to differentiate between inflammation associated with potentially life-threatening inflammatory bowel disease (IBD), which requires lifelong treatment, and less severe inflammation that can be associated with irritable bowel syndrome (IBS) which is frequently due to the presence of enteroinvasive pathogens. Lactoferrin is only markedly elevated prior to and during the active phases of IBD, but not with IBS. Monitoring fecal lactoferrin levels in patients with IBD can therefore facilitate timely treatment of IBD, and the test can be ordered separately. Since the vast majority of secretory IgA (sIgA) is normally present in the GI tract, where it prevents binding of pathogens and antigens to the mucosal membrane, it is essential to know the status of sIgA in the gut. sIgA is the only bona fide marker of humoral immune status in the GI tract.

Test useful for:
  • Low gastric acid production;
  • Chronic maldigestion;
  • Food allergen impact on bowel absorptive surfaces;
  • Bacterial overgrowth or imbalances (dysbiosis);
  • Pathogenic bacteria, yeast or parasites and related toxic irritants;and,
  • The use of NSAIDs and antibiotics