Talking to Your Doctor About Your Labs: Normal Versus Optimal, and What to Do If They Say 'No'

Normal Versus Optimal

Lab reference ranges are a statistical construct.

A reference range is the middle 95 percent of a reference population. The catch is who ends up in that population.

TSH is the clearest example. When researchers went back and excluded everyone with thyroid antibodies or occult thyroid disease, the proposed upper limit dropped sharply. In 1 widely cited analysis, more than 95 percent of people with genuinely healthy thyroids sat under 2.5, while many labs still print a range running up to 4.5, and some higher still.

The range had been describing people who were not well.

Across many markers, the same thing happens: a range built from people presumed healthy quietly absorbs people who are already unwell.

A conventional lab range lets ferritin sit anywhere from about 15 to 200, so a doctor working from that chart alone will call a ferritin of 17 fine. A Woman with a ferritin of 17 may be out of breath climbing 1 flight of stairs, and life can feel flatly dreadful in a way that does not show up on a chart.

You could have a ferritin level of 15 and be told by many doctors you're fine. But I want to tell you, you're not fine with your ferritin at 15.

Vitamin D and B12 tell the same story. Conventional lab ranges routinely allow both to fall low enough to carry real, well-documented effects, fatigue that rest does not touch, mood change, numbness and tingling, memory trouble, long before the lab range calls either one low enough to treat.

Normal lab ranges ask: are you sick enough to treat?

Optimal lab ranges ask: where do your numbers need to be for you to actually thrive?

Same blood. Same Woman. 2 completely different questions.

Functional Medicine ranges are not universally accepted by conventional endocrinologists. They come from clinical observation of where patients actually feel well, and your own practitioner may use different numbers.

Your conventional doctor, the one your insurance covers, is working inside a system that gives them about 15 minutes with you and rewards volume over depth.

Reference range construction gets little attention in most medical training, and that same rushed visit leaves no room to question the number printed on your lab sheet.

That is a training gap and a systems problem. It means you have to be the one who knows the difference.

When large numbers of Women report the same fatigue, the same brain fog, the same feeling of running on empty, that is evidence a lot of us have quietly agreed to treat widespread suffering as the baseline instead of asking why it is happening.

Know your optimal ranges so you can sit in an appointment and ask whether your numbers are where they should be. Diagnosis and dosing stay with your practitioner.

Why This Matters Even More in Midlife

Most reference ranges are 1 range for all adults, or 1 for Women and 1 for men. Very few are split by age, and almost none by where a Woman sits in the Menopause transition.

So at 48, your ferritin, your TSH, and your estradiol can be compared with a pool that includes 22-year-olds and 75-year-olds. Midlife is the stretch of life when your body is changing fastest, and it is the stretch a single range is least built to see.

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Midlife is also when the cost of 'normal' adds up. The symptoms Women bring me at 45 and 50, the fatigue, the hair loss, the brain fog, the weight that will not move, are exactly the symptoms where a low-normal ferritin, a high-normal TSH, or a vitamin D just over the line can matter most.

I held a Master's in Health Education. I knew how to read research. And I still could not understand why my labs kept coming back normal while I felt myself slowly becoming less of myself.

When I teach this live, I put it simply: these ranges are built from an average population in our culture, that average population is already a very sick population, and so normal often means you are not sick enough yet to treat.

How you walk into that appointment matters as much as what you ask for, and most of us get this exactly backward. Many of us brace for a fight. We arrive armored, printouts in hand, ready to be dismissed, and we transmit that expectation across the room before we have said a word.

There is a better way, and I have watched it change the entire tone of a visit.

First, open with genuine acknowledgement. Find what is actually true in the relationship and name it. That they have kept looking with you. That you trust them. That you appreciate their openness. We are all very tender people. We may act a different way on the outside, and underneath, everyone's heart is so tender. Doctors included.

Second, make a clear, specific, reasonable request. Avoid 'something is wrong, fix me'. It puts anyone on the defensive. Try: 'I would love to run a full thyroid panel including Free T3, Reverse T3, and antibodies, along with a ferritin and a vitamin D.' Specific and concrete is easy to say yes to.

Third, frame it as partnership. 'I want to understand the full picture so we can work on this together.'

If your appointments are rushed, send it as a short, warm message through the patient portal before the visit. It gives them time to read it before the clock starts.

Wording you can adapt:

Hi Dr. \_\_\_\_\_\_, thank you for how carefully you have listened to me through all of this. I appreciate that you have been willing to keep looking with me.

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There are some labs I would love to run. They could logically be contributing to the fatigue I have been describing, and I would like to be able to rule them out. \[Your list.\]

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I want to understand the full picture so we can work on this together.

I coached a Woman of 74, certain the door had closed after 3 decades of being dismissed, to send exactly this message. It opened with real gratitude before it made a single request. Her doctor ran the panel. Nothing about that doctor had changed in 30 years. What changed was how the ask arrived.

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Nothing on your list is unusual or wacky. Very often these are standard labs your existing doctor can order. Even for an annual physical you can say: every year, I want this list of things done.

Words for the Most Common Pushback

Even a warm, specific request can meet a 'no'. Most pushback falls into a handful of familiar lines, and each one has a kind, clear answer. Curiosity keeps the door open far longer than argument does.

• 'Your TSH is normal, so your thyroid is fine.' 'I am so glad the TSH looks good. I understand TSH is a signal from the pituitary, and I would love to see how my body is actually using thyroid hormone. Would you be open to adding Free T3, Free T4, Reverse T3, and both antibodies?'
• 'Your ferritin is in range.' 'Thank you for checking it. I have read that many Women feel best with ferritin between 70 and 100, and mine is 22, with hair shedding and fatigue. Could we run the full iron panel and look at why my stores are low?'
• 'Insurance will not cover that.' 'I understand. Would you order it so I can check my coverage directly? If it is not covered, I am comfortable paying for it myself.'
• 'You don't really need to test Reverse T3.' 'I understand it isn't part of a standard panel. Reverse T3 can quietly block T3 from working even when T4 looks fine, and I would like to see whether my body is converting T4 into active T3. Would you add Reverse T3 so we can see my Free T3 to Reverse T3 picture?'
• 'Those tests are not necessary.' 'I hear you. For my own peace of mind, and so we can rule things out together, would you be willing to run them this once? If they come back optimal, I will have my answer.'
• 'This is just stress, or just age, or just Perimenopause.' 'That may well be part of it. I would like to understand what is happening underneath, so I can support it. Which labs would you want to see to be confident nothing else is contributing?'
• 'Hormone testing is not useful in Perimenopause.' 'I understand my levels swing from day to day. I would still value a baseline, timed to my cycle, so we have real numbers beside my symptoms.'
• 'I am not comfortable prescribing that.' 'Thank you for being honest with me. Is there a colleague you would refer me to who works with this regularly?'

That last one deserves a word. When I brought my own primary doctor the sex hormone results I had tested privately, she said, 'This is great data, but I'm not equipped to do anything with these.' I was grateful for her honesty. An honest 'I don't know' is a gift, because it tells you exactly where to look next.

If a test is still declined, you can ask, gently, 'Would you be willing to note in my chart that I asked for these, and why we decided not to run them today?' It keeps a clear record for both of you, and it often prompts a second look.

If the answer is still no, or you would rather not ask:

You have more routes than most Women are ever shown.

A single session with me. Book a 1:1 session through themidlifementor.org/work-with-daniela. We go through your history together, and I help you get the right labs ordered and connect you with a practitioner who is literate in everything in this guide. Between sessions, you can follow my posts on the Great Energy Facebook page and join my private Facebook group, the Women's Midlife Health Community.

Telehealth built for exactly this, and much of it now takes insurance. That was not the case a few years ago.

• Midi Health (joinmidi.com). Midlife Women's hormones specifically. Operates in all 50 states and is in network with most PPO plans, though not Medicare or Medicaid. Most insured Women pay somewhere around $50 a visit, though your own copay depends on your plan, so confirm before booking.
• Paloma Health (palomahealth.com). Thyroid-focused, which matters if that is your picture. Sex hormones show up in their education and sit secondary to the thyroid work. In network with many plans, with a membership fee. Not Medicare or Medicaid, though some Medicare Advantage plans are taken.
• Parsley Health (parsleyhealth.com). General Functional Medicine by telehealth in all 50 states, with clinicians who can prescribe, and as of April 2026 in network nationwide with most major commercial plans, though not Medicare or Medicaid. A membership fee, reported around $150 a month, sits on top of insurance either way; verify the current figure directly. If you join, you are welcome to name me, Daniela Hess, as your referral.
• Ways2Well (ways2well.com). Functional and regenerative medicine, working from a full bloodwork panel, covering roughly 46 states for both labs and treatment. Not insurance-billed the same way; ask about their bloodwork membership directly.

Coverage changes constantly. Check yours before you commit to any of them. A local Functional Medicine practitioner is the other good route, and often the better one if you want continuity.

A shortcut to quality practitioner care: call a compounding pharmacy directly. Compounding pharmacies fill prescriptions for compounded T3, compounded T4, Low Dose Naltrexone (LDN), and compounded testosterone, medications many local prescribers do not offer or do not know how to dose. The pharmacists who run these pharmacies know exactly which doctors in your area are already writing these prescriptions, because they are the ones filling them. Call one and ask directly. Most will give you names, because every prescriber they can point you to is more business for the pharmacy.

Script you can use on the phone:

Hi, I'm a patient, not a provider. I'm looking for a doctor in this area who prescribes compounded T3, Low Dose Naltrexone, or compounded testosterone for Women in Perimenopause or Menopause. Is there a provider you fill these prescriptions for regularly, that you could point me toward?

Write down every name they give you. Call 2 or 3 different compounding pharmacies in your area, not just 1, since each pharmacist only knows their own prescribers. This builds you a working list of providers you can call directly, without waiting on a referral from anyone.