Most gastroenterology practices can answer basic questions about their use of hydrogen and methane breath testing for functional GI diagnostics: how many kits did we order, how many tests did the lab run, and what is our average turnaround time?
Far fewer can answer the real question: is our breath testing program actually doing its job — for patients, providers, and the business?
The difference between “we do breath testing” and “we run a breath-testing program” shows up in three places your teams feel every day:
- Stalled pathways and unchanged care plans
- Frustrated staff chasing kits and rescheduling follow-ups
- Hidden financial drag from tests that never turn into completed episodes of care
The short answer
A breath testing program is working when four things hold at once: you trust the results, every test gets a fair chance to be interpretable, kits reliably move from order to result to action, and the program creates more clinical and financial value than it consumes. Those four domains — clinical integrity, protocol integrity, operational performance, and economic yield — are what the CDI Breath Testing Program Self-Assessment measures.
To help GI leaders get an honest, structured view of how their current approach is performing, we built a Breath Testing Program Self-Assessment based on four domains that emerged from our work with GI groups across the country. This article is your introduction to that framework — and an invitation to benchmark your program using the self-assessment.
14 statements. 10–15 minutes. Works for any testing model.
The four domains of a healthy HMBT program
Rather than a 50-page audit, the self-assessment looks at your practice’s HMBT use through four practical domains:
- Clinical integrity
- Protocol integrity
- Operational performance
- Economic yield
Together, they answer three simple questions:
- Do we trust the results we’re using?
- Are we giving each test a fair chance to be interpretable?
- Are we running breath testing as a program, not a collection of transactions?
Clinical integrity
Do we trust the curves we’re basing decisions on?
Clinical integrity is everything that protects the truth of a breath test:
- CO₂ correction to confirm sample quality
- Validated sample stability (time and temperature) from kitchen table to CLIA lab
- Sensitivity and specificity, and positivity criteria that align with major guidelines
When this is weak, providers quietly lose confidence:
- Certain patterns are ignored or discounted
- Similar patients get very different answers from different labs
- Ordering slowly drops off without anyone deciding to “stop”
In the self-assessment, we ask how confident you are in these parameters today and how recently you’ve validated them with your vendor.
Protocol integrity
Are we giving each test a fair, consistent chance to succeed?
Even a strong lab can’t rescue inconsistent prep and protocols. Protocol integrity covers:
- Patient preparation: diet, fasting, medications
- Substrate choice: lactulose vs glucose, matched to the clinical question
- Timing and duration: are you sampling long enough for the substrate you chose?
- Standardization: are all providers using the same protocol?
Weakness here shows up as:
- “Noisy” or ambiguous curves
- Different prep and timing rules depending on which provider you ask
- Patients calling back confused about what they were told to do
The self-assessment helps you see whether variation is the exception in your practice — or the norm.
Operational performance
Can we reliably move from order to result to action?
This is where many programs feel pain but rarely quantify it. Operational performance looks at:
- How easy it is to order the test
- How reliably kits get registered to the right patient
- What percentage of kits actually get returned
- Turnaround time from sample receipt to result
- Staff time spent chasing missing kits or rescheduling visits
The anchor metric
Return ratio = completed tests ÷ kits sent out
Return ratio is the single number that tells you how much of your ordering effort becomes usable clinical data.
| Return ratio | Kits sent | Completed tests | Patients with actionable data |
|---|---|---|---|
| 60% | 600 | 360 | Baseline |
| 80% | 600 | 480 | 120 more, without ordering a single extra kit |
The self-assessment helps you place your current program on that spectrum and see where operational friction is costing you.
Economic yield
Is breath testing creating the value it should?
Economic yield asks whether breath testing:
- Supports better, more timely care (not just more diagnostics)
- Contributes appropriately to professional revenue (visits, follow-ups, procedures when indicated)
- Avoids waste — tests that never lead to a documented care decision
- Uses rooms, staff time, and equipment in a way that makes sense for your practice
This isn’t about turning breath testing into a revenue engine. It’s about making sure you’re not running a program that quietly erodes margin and morale while under-delivering for patients.
The self-assessment gives you a quick, structured way to think about these trade-offs without building a full financial model on day one.
How to use the self-assessment
The Breath Testing Program Self-Assessment is designed to be:
- Fast: most groups complete it in 10–15 minutes
- Neutral: it evaluates any model (in-clinic POC, commodity at-home, CDI, or a mix)
- Action-oriented: it highlights where improvement is most likely to matter
You’ll receive a domain-by-domain view of where you’re strong, mixed, or high-opportunity, plus a total score that places your program in one of three bands.
Interpreting your score
A directional view of where your program stands today
Structural change likely required
Focus on the weakest domain first
Tighten remaining gaps and benchmark
From there, useful next steps typically include:
-
Share results with your HMBT stakeholders
At least one GI physician, one operations lead, and someone who understands your numbers.
-
Pick one domain to improve first
For many groups, that’s operational performance (return ratio, turnaround time, staff burden). Others start with clinical integrity to rebuild confidence in the curves.
-
Run a 90-day experiment, not a 5-year overhaul
Tighten prep at one site, standardize timing across providers, or pilot a different fulfillment model — then recheck the same domain.
If you want to go deeper, the Breath Testing Done Right eBook expands each domain with examples, questions to ask your vendors, and sample metrics.
Breath Testing Program Self-Assessment: FAQs
Who should complete the self-assessment?
Ideally someone who understands both the clinical and operational sides of your program — often a GI lead with an operations or practice administrator partner.
How long does the self-assessment take?
Most groups finish in 10–15 minutes. It’s 14 statements across four domains, and you can complete it in one sitting without pulling reports first.
Does it only apply if we’re using CDI?
No. The framework is vendor-neutral. It’s intended to help you evaluate any current setup: in-clinic POC, commodity at-home kits, CDI, or a mix.
Will we see a “score”?
You’ll see where you land in each of the four domains (strong, mixed, high-opportunity), along with guidance on what that typically means for similar GI groups.
What is return ratio, and why does it matter?
Return ratio is completed tests divided by kits sent out. It’s the clearest measure of how much ordering effort becomes usable clinical data. Across 600 shipped kits, moving from 60% to 80% adds 120 patients with actionable results — without ordering a single extra kit.
What if we don’t have all the data, such as an exact return ratio?
You can start with estimates. Part of the value is simply exposing where you don’t currently have visibility.
Can CDI help us interpret the results?
Yes. If you’d like, we can walk through your results with you and explore whether a focused pilot or specific changes could improve completion, confidence, or economic performance.
Breath Testing Done Right
See where your program actually stands
Four domains. Fourteen statements. A clear view of what to fix first.
