Sometimes an initial medical evaluation does not provide a complete explanation for the symptoms or concerns that brought you to a healthcare provider. Blood work can be an important part of care, but laboratory results are only one part of a broader clinical picture that can also include your history, symptoms, lifestyle, nutrition, medications, environment, and other health factors.
At Dr. Marina Fest, DNP, our approach includes both primary care and functional medicine. Functional medicine can provide an additional framework for considering relevant factors such as lifestyle, nutrition, environment, laboratory findings, and health history.
One patient described valuing this kind of approach because she felt listened to, taken seriously, and given a more thorough evaluation than she had expected. What mattered most to her was the sense that her concerns were not dismissed simply because an initial explanation was not obvious.
When basic blood tests do not fully explain how you feel, a healthcare provider may consider your symptoms, medical history, medications, lifestyle, nutrition, environment, and other relevant factors. Additional testing may be appropriate in some cases, but it should be guided by individual clinical needs rather than ordered routinely.
How Can Functional Medicine Look Beyond an Initial Evaluation?
Functional medicine does not mean that every patient needs extensive testing or that every symptom has one hidden cause. It means we can consider how different areas of health may relate to one another and determine whether additional evaluation is appropriate based on the individual patient.
Our functional medicine services can include laboratory testing, hormone evaluation, gut testing, thyroid testing, adrenal testing, lifestyle assessment, nutrition considerations, and individualized care planning.

Why Does Listening to the Full Health History Matter?
Symptoms make more sense when they are considered in context.
A laboratory value by itself cannot tell the complete story of how you have been feeling, when symptoms began, what makes them better or worse, what medications you take, how you sleep, what your diet looks like, or whether several concerns developed around the same time.
One patient who shared her experience with our practice especially appreciated feeling that her concerns were heard rather than quickly dismissed. That is her individual experience, but it reflects an important part of personalized healthcare: understanding what brought you in before deciding what the next step should be.
Our primary care and functional medicine approach emphasizes individualized patient care, prevention, and treatment planning based on the broader clinical picture.
Does Functional Medicine Always Mean Ordering More Tests?
No. More testing is not automatically better. Testing should have a reason and should be considered in relation to your symptoms, history, and clinical needs.
Our functional medicine services may include hormone, gut, thyroid, and adrenal testing, along with other laboratory evaluations when appropriate. These tools can help provide additional information in certain cases, but the decision to use them should be individualized.
The goal is not to order tests simply because an initial blood panel appears normal. The goal is to determine what information may actually help clarify the next step in your care.
What Does Looking for a Root Cause Actually Mean?
Root cause focused care means asking what factors may be contributing to a health concern instead of considering a symptom in isolation.
Our functional medicine model considers areas such as hormones, gut health, nutrition, lifestyle, environment, and biology. Depending on the patient, some of these areas may be relevant and others may not.
For example, two people with a similar complaint may require very different evaluations because their histories, risk factors, medications, and overall health are different.
That is why personalized assessment matters.
What If You Feel Your Symptoms Have Been Dismissed?
Feeling that your concerns have not been fully understood can make it difficult to know what to do next.
A healthcare visit should give you room to explain what you are experiencing and ask questions about your evaluation. It is also reasonable for a provider to explain when additional testing is appropriate and when it may not be necessary.
The patient whose experience inspired this article valued feeling believed and heard. She also appreciated that her concerns were considered beyond an initial set of laboratory results.
We cannot promise that every symptom will have a simple explanation, but we can approach the evaluation thoughtfully and discuss what information may be useful.
How Can You Start a Functional Medicine Evaluation?
If you have ongoing health concerns and want to discuss whether a broader evaluation may be appropriate, the first step is a detailed conversation about your symptoms, health history, current treatment, and goals.
Dr. Marina Fest, DNP provides functional medicine and primary care services in Staten Island, NY. Depending on your individual needs, care may include laboratory evaluation, functional testing, lifestyle considerations, preventive care, or a personalized treatment plan.
You can contact our office or use our online booking page to schedule an appointment and discuss your concerns.
Frequently Asked Questions
Does Dr. Marina Fest offer functional medicine care?
Yes. Dr. Marina Fest provides functional medicine care focused on individualized evaluation and possible underlying contributors to health concerns.
What types of functional medicine testing are available?
The practice lists hormone, gut, thyroid, and adrenal testing, along with laboratory testing and individualized functional plans.
Does Dr. Marina Fest also provide primary care?
Yes. Primary care services include preventive care, chronic disease management, physical exams, medication management, referrals, and other healthcare services.
Where is Dr. Marina Fest located?
The practice is located at 2627 Hylan Blvd D2, Staten Island, NY 10306.









