How to Get a GI Map Test?
Getting a GI-MAP (Gastrointestinal Microbial Assay Plus) test requires ordering the comprehensive clinical diagnostic stool kit through a licensed functional medicine physician, naturopathic doctor, gastroenterologist, or certified direct-to-consumer functional lab platform. Developed by Diagnostic Solutions Laboratory, the GI-MAP is an advanced DNA-based stool test that utilizes quantitative polymerase chain reaction (qPCR) technology to measure microbial gastrointestinal pathogens, beneficial commensal bacteria, opportunistic microbes, fungi, parasites, and intestinal inflammatory biomarkers with exceptional sensitivity and specificity.
Ordering Pathways and qPCR Diagnostic Technology
Unlike conventional hospital stool cultures that rely on growing live bacterial colonies in Petri dishes—a method that frequently misses anaerobic organisms that die upon contact with room oxygen—the GI-MAP directly amplifies microbial DNA fragments. This allows the assay to quantify the exact genomic copy count of microorganisms per gram of stool, detecting low-level infections of Helicobacter pylori, Clostridium difficile, Giardia lamblia, Candida albicans, and Zonulin (a marker of intestinal permeability or leaky gut).
Because the GI-MAP is classified as a specialized diagnostic laboratory test, the primary method to obtain it is through a healthcare provider with an active Diagnostic Solutions Laboratory account. If your conventional primary care physician does not offer functional testing, you can access the kit through online functional medicine testing portals (such as Rupa Health, TrueHealthLabs, or MyMedLab). These platforms connect you with an independent reviewing physician who authorizes the requisition and ships the specimen collection box directly to your home.
The comparison table below details the different ways to purchase a GI-MAP test, pricing models, and professional support.
| Ordering Route | Requisition Provider | Total Price Range | Insurance Coverage | Clinical Support Level |
|---|---|---|---|---|
| Functional Medicine Doctor | In-person Naturopath / Functional MD | $350 to $500 test + consult | Cash pay (HSA/FSA eligible) | Full comprehensive clinical protocol |
| Direct-to-Consumer Lab (Rupa/TrueHealth) | Affiliated telemedicine physician | $380 to $450 flat rate | Out-of-pocket only | Test results + automated summary report |
| Integrative Gastroenterologist | Specialist GI MD or Nurse Practitioner | $350 to $450 test fee | Possible out-of-network claim | Gastroenterology clinical oversight |
| GI-MAP with Zonulin Add-On | Any authorized ordering portal | $450 to $550 combined | Out-of-pocket only | Measures leaky gut intestinal permeability |
Most insurance plans do not directly contract with Diagnostic Solutions Laboratory, but you can typically use Health Savings Account (HSA) or Flexible Spending Account (FSA) funds.
At-Home Specimen Collection and Result Interpretation
Executing the at-home collection accurately is essential for precise qPCR data. Two to four weeks prior to testing, patients should consult their ordering physician about pausing probiotic supplements, digestive enzymes, high-dose antimicrobials, and non-essential NSAIDs. If you have taken a course of prescription antibiotics or antifungals, wait at least four weeks post-treatment before collecting your sample to avoid false-negative microbial readings.
The GI-MAP kit includes an easy-to-use collection tray, a screw-cap vial containing stabilization transport buffer fluid, gloves, and a prepaid express return mailer. You place the paper collection sheet across your toilet rim, collect a small stool specimen using the attached collection spoon, mix it thoroughly into the chemical preservative fluid until the liquid changes color, and ship it back via FedEx within 24 hours. Laboratory processing typically takes 10 to 14 business days.
The table below highlights key functional biomarker categories analyzed on a standard GI-MAP diagnostic panel.
| Diagnostic Biomarker Category | Specific Targets Measured | Clinical Relevance | Associated Symptoms |
|---|---|---|---|
| Bacterial Pathogens | C. difficile toxins A/B, Salmonella, Campylobacter | Acute or chronic infectious enteritis | Severe diarrhea, cramping, fever |
| Parasitic Organisms | Giardia, Cryptosporidium, Blastocystis hominis | Intestinal protozoal colonization | Gas, chronic bloating, nutrient malabsorption |
| Fungal Overgrowth | Candida albicans, Candida tropicalis, Geotrichum | Systemic or localized dysbiosis | Brain fog, sugar cravings, skin rashes |
| Commensal Microbiota | Bifidobacterium, Lactobacillus, Akkermansia | Gut mucosal barrier integrity & diversity | Metabolic health, digestive resilience |
| Intestinal Health Markers | Calprotectin, Secretory IgA, Elastase-1, Zonulin | Pancreatic output, mucosal immunity, leaky gut | IBD vs IBS, food sensitivities, maldigestion |
Elevated fecal calprotectin indicates active intestinal mucosal inflammation, distinguishing Inflammatory Bowel Disease (IBD) from functional IBS.
How to Get and Complete a GI Map Test in 4 Steps
Follow this practical medical guide to order, collect, and review your GI-MAP stool test.
Order the Test Through a Provider or Direct Lab
Select your ordering pathway via a functional medicine practitioner or direct-to-consumer medical requisition platform.
Prepare for Testing and Discontinue Supplements
Pause probiotics, antifungals, and digestive aids 1 to 2 weeks prior to sampling in coordination with your doctor.
Collect and Preserve the Stool Specimen at Home
Collect the sample using the included collection tray, mix into the preservative vial, and shake vigorously for 30 seconds.
Ship the Kit via FedEx and Review Results with a Doctor
Mail the specimen via prepaid FedEx overnight and schedule a clinical consult 10 to 14 days later to review the multi-page DNA report.
Frequently Asked Questions (8 Questions Answered)
Q1: Can I order a GI-MAP test without a doctor?
Yes. You can order through direct-to-consumer functional lab platforms like Rupa Health or TrueHealthLabs where an affiliated physician signs the lab requisition for you.
Q2: How much does a GI-MAP test cost?
The standard GI-MAP test costs between $350 and $450 out of pocket. Adding the Zonulin intestinal permeability marker increases the total cost to around $450 to $550.
Q3: Does standard health insurance cover the GI-MAP test?
Most standard insurance providers (Aetna, Blue Cross, Medicare) do not cover functional stool testing. However, the expense is eligible for HSA and FSA reimbursement.
Q4: What is the difference between GI-MAP and a standard stool test?
Standard hospital tests use traditional bacterial cultures that miss non-viable organisms. GI-MAP uses quantitative PCR DNA technology to measure exact bacterial genetic copy counts.
Q5: How long does it take to get GI-MAP results back?
Once the laboratory receives your physical specimen, comprehensive results are processed and delivered to your portal within 10 to 14 business days.
Q6: Do I need to freeze the stool sample before shipping?
No. The collection tube contains a proprietary liquid stabilization buffer that preserves microbial DNA at room temperature, eliminating the need for ice packs.
Q7: What does a high Zonulin level on a GI-MAP mean?
Zonulin regulates the tight junctions between intestinal epithelial cells. High fecal zonulin indicates compromised barrier integrity, commonly referred to as leaky gut.
Q8: Can GI-MAP detect H. pylori infections?
Yes. GI-MAP quantifies Helicobacter pylori DNA down to minute levels and also tests for key virulence factors (CagA and VacA) and antibiotic resistance genes.
Final Thoughts & Key Takeaways
In conclusion, understanding how to get a gi map test? provides essential clarity, practical strategies, and actionable advice. By incorporating these foundational insights, adhering to verified safety guidelines, and following structured best practices, you ensure reliable, long-term outcomes while preventing common mistakes. Stay informed, consult certified professionals when needed, and maintain consistent quality care.