Functional Lab Testing in Chico
Tired of hearing “your labs look normal” when you don’t feel normal? Functional testing looks deeper and often finds what a standard panel missed. Because knowing what is wrong only helps so much: the real answer is why it’s wrong, and that’s what functional labs are built to show you.
Why We Run Functional Panels
Everything we do is aimed at the same thing: finding the root cause instead of chasing the symptom. Bloodwork is one more way to do that. When your body keeps struggling and no one can tell you why, a functional panel can surface the patterns that a standard screen wasn’t looking for.
To be clear about what this is: functional lab testing is screening and guidance. We use what we find to guide diet, lifestyle, and supplement support. It is not a diagnosis, and it does not replace your physician. When results point to something that needs medical attention, we’ll tell you plainly and encourage you to follow up with your primary care doctor.
We can order functional panels for you as a patient, and we can also review and interpret panels you’ve already had done.
What’s in a Functional Thyroid Panel?
A lot of people are told their thyroid is “fine” based on a single number, usually just TSH, and they still feel exhausted, cold, and foggy. A functional thyroid panel looks wider. Instead of one value, it measures the full picture: how much thyroid hormone you’re making, how well your body is converting it into the active form, and whether your immune system is attacking the gland.
Here’s what a full functional thyroid panel looks at:
- Thyroid-Stimulating Hormone (TSH)
- Free T3
- Free T4
- Total T3
- Total T4 (Thyroxine)
- T3 Uptake
- Free T4 Index (T7)
- Reverse T3
- Thyroid Peroxidase Antibodies (TPO)
- Thyroglobulin Antibodies
Seeing all of these together is what makes it functional. A standard test might show a normal TSH and stop there, while Free T3 or Reverse T3 quietly reveal that your body isn’t turning thyroid hormone into the active form you can actually use.
This panel is often most useful for people already taking thyroid medication. In that case it isn’t looking for undiagnosed disease; it’s showing how well your current treatment is actually working for you. Anything that points to a medication question goes back to your prescribing physician, since dosing is their call.
Are There Functional Labs For Blood Sugar Problems?
Blood sugar trouble usually shows up years before a standard glucose test notices it. By the time a routine fasting glucose looks high, the problem has often been building quietly for a long time. A functional blood sugar panel is designed to catch that pattern early, while there’s still plenty of room to change course.
Here’s what a functional blood sugar panel looks at:
- Fasting glucose
- Fasting insulin
- Hemoglobin A1c (HbA1c)
- HOMA-IR (insulin resistance score)
The key one most standard screens leave out is fasting insulin. Your body will crank out more and more insulin to keep glucose in the normal range, so glucose can look perfectly fine for years while insulin is working overtime behind the scenes. Measuring insulin alongside glucose shows you how hard your body is actually working, not just the end result.
As with all of our testing, this is screening and guidance to inform diet, lifestyle, and supplement support, not a diagnosis. If results point toward diabetes or another condition that needs medical management, we’ll encourage you to follow up with your primary care doctor.
What Labs Would Show Inflammation?
Low-grade inflammation sits underneath a lot of how people feel day to day, and it rarely announces itself. You won’t always feel it directly, but it shows up as the fatigue, the aches, the slow recovery, the sense that your body is working against you. A functional inflammation panel looks at both the inflammation itself and what tends to drive it.
Here’s what this panel looks at:
Direct markers of inflammation
- hs-CRP (high-sensitivity C-reactive protein)
- Homocysteine
- Fibrinogen
- Ferritin
Fatty acid balance (what fuels or calms inflammation)
- Omega-3 Total
- Omega-6 Total
- Omega-6 / Omega-3 Ratio
- EPA (Eicosapentaenoic Acid)
- DHA (Docosahexaenoic Acid)
- DPA (Docosapentaenoic Acid)
- Linoleic Acid
- Arachidonic Acid
- Arachidonic Acid / EPA Ratio
- EPA+DPA+DHA
Nutrient status
- Vitamin D
The reason we look at fatty acids alongside the inflammation markers is that they’re part of what turns inflammation up or down in the first place. A high omega-6 to omega-3 ratio is one of the biggest drivers of inflammation that gets missed by standard labs, so seeing that balance helps guide what actually changes it: diet, lifestyle, and targeted support. As with all of our testing, this is screening and guidance, not a diagnosis, and anything that needs medical attention goes back to your primary care doctor.
How to Prepare for Your Labs
A couple of simple things make your results more accurate:
Come in the morning and fasted, meaning nothing but water beforehand. This matters most for the blood sugar panel, and it keeps things consistent if we’re drawing more than one panel at once.
If you take thyroid medication, take it after your blood draw that morning, not before. Taking it right before the draw can temporarily skew the reading.
We Can Help You Get Functional Labs
If you’ve been feeling off and your standard labs keep coming back “normal,” a functional panel might show what’s been missed. The first step is a conversation.