When Advanced Testing Leads You in the Wrong Direction: A Tick-Borne Disease Case Study in Hilton Head, SC
- Eric Donathan MSN, APRN, FNP-C
- Mar 19
- 5 min read
At Integrate, we frequently see patients who have undergone extensive, and often expensive testing, only to be left without clear answers.
Recently, I evaluated a patient who had been told they likely had a tick-borne illness, based largely on a specialized lab test called a FISH assay.
What followed is something we’re seeing more often, and it is important patients understand it.
Many patients have symptoms that are real and look for answers from “holistic” practitioners. This can often lead to patients falling victim to clinics looking for repeat customers for all the wrong reasons.
The Patient Story
The patient presented with generalized complaints of:
Fatigue
Brain fog
Low energy for several months
They had previously been evaluated at another “holistic” clinic and underwent specialty infectious disease testing, including a FISH (Fluorescent In-Situ Hybridization) test for organisms such as Babesia.
They were told:
The test suggested infection
Treatment may require a long-term plan
Additional therapies would likely be needed
They had already spent thousands of dollars out-of-pocket and were understandably concerned.
What Is a FISH Test?
A FISH test uses fluorescent probes to detect genetic material from organisms in the blood.
While this sounds highly precise, there are important limitations:
It may detect non-viable organisms or fragments
It is not always standardized across laboratories
Results may not clearly distinguish active infection vs incidental findings
Like any test, it must be interpreted within the full clinical picture.
Where Things Went Off Track
After reviewing the patient’s history and dozens of results, several concerns became clear:
Over-reliance on a Single Specialty Test
The diagnosis was heavily based on one non-standard test, without:
Strong clinical correlation
Confirmatory testing
Clear diagnostic criteria
Non-Specific Symptoms
Fatigue and brain fog can be caused by:
Sleep disruption
Stress and burnout
Nutritional deficiencies
Hormonal or metabolic factors
Mental Health Conditions
Jumping straight to a chronic infection can lead to misdirected care.
Escalating Treatment Without Clear Evidence
The patient was being guided toward:
Long-term antimicrobial therapy
Continued specialty testing
Ongoing high-cost protocols
Using medications off label for symptoms
Without clear confirmation of an active infection.
The Cycle That Keeps Patients Spending
What makes cases like this especially challenging isn’t just the diagnosis, it’s the pattern patients can unintentionally get pulled into. It often looks like this:
Step 1: Something Feels Off
You’re dealing with real symptoms: fatigue, brain fog, low energy.
You’re told:
“Something deeper is going on”
“Traditional medicine may miss this”
“We need advanced testing”
Step 2: Extensive Specialty Testing
You undergo:
Large lab panels
Specialty tests (like FISH, micronutrient panels, hormone panels)
Significant out-of-pocket costs
Results often show something abnormal, because with enough testing, that’s common, amd expected.
Step 3: Expanding Diagnoses
You may be told you have:
Chronic infection
Hormonal imbalance
Inflammation syndromes
Lesser Recognized “Conditions”
Even when findings are borderline or unclear.
Step 4: The Treatment Protocol
Now comes:
Multiple supplements
IV therapy packages
Ongoing visits and monitoring
You’re told:- “Healing takes time”- “You need to stay consistent”
Step 5: Re-Testing and Adjusting
More labs are ordered
Results are reinterpreted
New treatments are added
And the cycle continues….
Why This Cycle Is So Hard to Break
This situation can develop without bad intent, but it can still lead to:
Turning normal variation into disease
Creating long-term dependence on treatment plans
Keeping patients searching for answers that may not require complex solutions
And most importantly:
Once you’ve invested time, money, and hope, it’s very difficult to step away.
What We Did Differently
We took a step back and asked:
Does the clinical picture actually support this diagnosis?
We performed:
Evidence-based tick-borne testing
Routine laboratory evaluation
Focused history and physical exam
What We Found
The results showed:
No clear evidence of active Babesia or Lyme disease
No indication for prolonged antimicrobial therapy
Instead, the patient’s symptoms were more consistent with common, treatable causes.
Key Takeaway: Testing Should Support the Patient—Not Define Them
Advanced diagnostics can be helpful, but only when used appropriately.
Problems arise when:
Tests are used without proper context
Results are over-interpreted
Treatment decisions are driven by labs instead of the full clinical picture
How Patients Can Protect Themselves
Before agreeing to advanced testing, consider asking:
“Is this test widely accepted and validated?”
“How often are false positives seen?”
“Will this result actually change my treatment?”
“Are there simpler explanations we should rule out first?”
Our Approach at Integrate
We believe in:
Evidence-based medicine
Strategic, not excessive, testing
Clear, goal-oriented treatment plans -Transparent, cost-conscious care
You shouldn’t need to spend thousands of dollars to get real answers.
How We Incorporate Complementary & Alternative Therapies. The Right Way
At Integrate, we believe there is value in many therapies often considered “alternative.”
In fact, many of our patients are looking for:
A more holistic approach
Preventative strategies
Options beyond medications alone
And we support that.
But the key difference is how and when these therapies are used.
Complementary… Not a Replacement for Clinical Judgment
We view alternative therapies as complementary tools, not primary drivers of diagnosis or treatment.
That means:
They are used after an appropriate medical evaluation
They are applied with a clear goal in mind
They are adjusted or stopped if no benefit is seen
Not every patient needs:
Extensive supplementation
IV therapy
Advanced testing
And in many cases, simpler interventions are more effective.
Context Matters More Than the Modality
A therapy isn’t inherently good or bad, it depends on:
The patient’s condition
The quality of evidence
Whether it actually improves outcomes
For example:
IV therapy may be helpful in select situations
Supplements can be beneficial when targeted appropriately
Lifestyle optimization is often foundational and underutilized
But none of these should replace:- A clear diagnosis- A thoughtful clinical plan
Avoiding the “More Is Better” Trap
One of the most common issues we see is the assumption that:
More testing = better care
More treatments = faster results
In reality, this can lead to:
Increased cost
Confusion
Diminishing returns
Our goal is to do what is necessary and optimize your health.
A Balanced Approach
At Integrate, our model is simple:
Start with evidence-based evaluation.
Identify the most likely causes first.
Use complementary therapies strategically.
Continuously reassess effectiveness.
This allows us to:
Avoid unnecessary interventions
Keep care cost-effective
Deliver real, measurable outcomes
The Goal: Clarity, Not Complexity
Patients don’t need more complexity; they need clarity and direction.
When used appropriately, complementary therapies can absolutely play a role.
But they should support the plan, not define it.
In Closing
If you’re dealing with fatigue, brain fog, or concerns about Lyme disease or tick-borne illness, it’s important to use the right tests, and interpret them correctly. Advanced diagnostics like FISH testing for Babesia can be helpful in select cases, but they should never replace a full clinical evaluation. At Integrate in Hilton Head, SC, we help patients navigate testing, avoid unnecessary treatments, and get clear, evidence-based answers. If you’ve already undergone testing and still don’t feel confident in your diagnosis, we’re here to help you reassess and move forward with a smarter, more effective plan.
Be Well. Stay Healthy.
Eric Thomas Donathan APRN-C
Integrate – Hilton Head & Bluffton, SC

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