You know something deeper is going on. This is how we find it. You've been tested before: standard blood panels, a thyroid screen, maybe a basic metabolic check. Every time, the same conclusion - nothing to worry about. Your body has been telling you otherwise, and you're not wrong to trust that. Standard testing was designed to look for disease. Functional testing investigates the systems where persistent, unexplained symptoms most often originate: your gut microbiome, hormone patterns, toxin burden, nutrient reserves, and metabolic function.
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Key Takeaways
All interpretation sessions are 100% virtual via Zoom, 1:1 with Yelena Tselenchuk, Board Certified Doctor of Holistic Health, Naturopath, and Certified Functional Blood Chemistry Analyst. Session duration is 60 minutes per test review. Structure is one primary complex test per session, or multiple smaller complementary tests reviewed together.
4-Session Package
$1,600
$400/session
6-Session Package
$2,100
$350/session
12-Session Package
$3,600
$300/session
Testing fees are separate and paid directly to the laboratory, typically $200-$600 per panel. Sessions are not covered by insurance or HSA/FSA; lab testing, supplements, and herbs may be. Payment accepted: Visa, MasterCard, Discover, Amex, PayPal, Apple Pay, Google Pay. Cancellation requires 24-hour notice, or the full session fee applies.
Standard panels were designed to screen for disease. When nothing reaches a disease threshold, the result comes back unremarkable and the conversation ends. Functional testing asks a different question: where is the body under strain, and what patterns are driving the symptoms you're actually living with.
The data only becomes useful when it's interpreted in context. A cortisol pattern means something different in a person with a year of high work stress than in someone whose symptoms started after an illness. Interpretation connects markers to your symptom timeline, your intake history, and the other systems that interact with the one being tested.
Functional testing sits alongside Functional Blood Chemistry Analysis, which evaluates circulating blood markers against tighter functional ranges. Blood chemistry is often the foundation; functional testing goes deeper into specific organs and systems using stool, urine, saliva, and dried blood spot collection. Many clients use both.
Which tests are appropriate for you depends on your symptoms and history, which is established during a naturopathic consultation or free discovery call.
Comprehensive stool analysis evaluates microbial balance and diversity, digestive function markers, inflammation indicators, and the presence of parasites or pathogens, with neurotransmitter markers for the gut-brain connection. Typically the first test recommended for persistent bloating, constipation, gas, food reactions, or fatigue after eating. See gut health and digestive issues and parasite detox support.
Urine-based mycotoxin testing measures your body's actual mold exposure load, not just whether mold exists in your environment. Fatigue, brain fog, sinus issues, skin reactions, histamine sensitivity, and immune disruption can all trace back to mycotoxin accumulation. Related: histamine intolerance.
Evaluates toxic metal levels alongside essential mineral status, since the two are closely linked. When mineral reserves are depleted, the body stores metals it cannot properly clear. Heavy metal accumulation can contribute to fatigue, cognitive changes, immune disruption, and nervous system symptoms.
Comprehensive hormone testing evaluates the full picture: adrenal function and cortisol patterns, sex hormone balance, thyroid panels, bone biomarkers, endocrine disruptors, and oxidative stress. Testing only one axis often misses the interactions driving your symptoms. See hormone imbalances.
Nutrient deficiency panels and organic acids testing evaluate what your cells are actually receiving and how efficiently your metabolism is running. Without the raw materials, everything downstream suffers: energy production, detox capacity, neurotransmitter balance, immune function.
IgG food sensitivity testing identifies delayed immune reactions to specific foods that don't show up on standard IgE allergy panels. Useful when symptoms (bloating, fatigue, joint pain, skin issues, brain fog) appear hours or days after eating a reactive food, or when the list of problem foods keeps growing. Collection is an at-home finger-stick.
Evaluates exposure to Borrelia, Bartonella, Babesia, Anaplasma, Ehrlichia, and related co-infections. These are frequently underdiagnosed because standard testing has significant sensitivity limitations, and symptoms (fatigue, joint pain, cognitive changes, immune dysregulation) overlap with other conditions. Appropriate for complex, multi-system symptoms of unclear origin, known tick exposure, or prior inconclusive testing. Findings shape protocol sequencing where drainage and detox are planned.
All tests use at-home collection methods shipped directly to you by the laboratory. The process runs in six steps.
See how our full methodology worksDuring a free consultation or existing session, Yelena reviews your symptoms, history, and concerns to recommend only the panels most likely to yield answers.
Kits ship directly to your home. Most use simple collection: urine, saliva, stool, or dried blood spot, completed on your schedule.
Follow the included instructions, complete your sample, and return it in the prepaid envelope. No lab visits required for most tests.
Once results are in, Yelena spends several hours reviewing your data and connecting findings to your symptoms, history, and the full context of what your body is dealing with.
In a 60-minute Zoom session, you walk through every significant finding together. Each marker is explained in plain language: what it means, what it points to, and what it suggests as a next step.
You leave with a clear understanding of what's happening, what to address first, and informed recommendations tailored to your results: nutrition, lifestyle, supplements, and sequencing guidance.
This service is for you if you have persistent symptoms (fatigue, digestive issues, hormone shifts, brain fog, unexplained body changes) that standard testing hasn't explained, if you've had blood work and want to investigate deeper systems that routine panels don't assess, or if you're ready to invest in targeted, data-informed testing guided by a practitioner who will tell you exactly what you need and why.
This may not be the right fit if you're looking for a medical diagnosis or prescription (this is an educational, consultative service), or if you aren't ready to invest in testing costs beyond session pricing.
The right tests depend on your symptoms, history, and what's already been investigated. Rather than ordering a broad panel and hoping something shows up, Yelena reviews your full picture during a free consultation and recommends only the tests most likely to provide answers. For many clients, gut microbiome testing and organic acids are a strong starting point, but the right test for you depends on your situation, not a generic protocol.
Most functional tests use at-home collection: stool, urine, saliva, or dried blood spot. The laboratory ships a kit directly to you with clear instructions. You complete the collection, pack the sample, and return it in the prepaid envelope. Results are sent to Yelena for analysis, and your session is scheduled once they're ready.
Most results are available within 2-4 weeks after the lab receives your sample. Some specialized panels take slightly longer. Yelena will let you know what to expect for your specific tests.
Functional Blood Chemistry Analysis works with standard blood draws and evaluates circulating markers using tighter functional ranges. Functional testing expands into systems blood alone cannot assess: gut microbiome composition, mycotoxin exposure, hormone rhythms via saliva and urine, organic acid metabolites, toxic metal accumulation, and cellular nutrient status. Many clients use both.
Yes. If you have a clear sense of what you want to investigate, you can book a free consultation to discuss testing directly. Starting with a naturopathic consultation helps prioritize which tests will be most valuable, but it isn't required.
You've spent long enough wondering. The patterns behind your symptoms aren't going to show up on the same tests that already came back without answers. Functional testing investigates the systems routine panels don't reach, and the findings are often what finally make everything click.
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Prefer to reach out directly? (216) 282-4520 (call or text).
100% virtual. 1:1 with Yelena Tselenchuk, Board Certified Doctor of Holistic Health, Naturopath, and Homeopath.