I would think that those results deserve further action. The Vitamin D, B12 and ferritin are all too low. D should be at least 50 ng/mL, B12 in the upper end of its range, and ferritin should be at least 100. So those need to be supplemented to optimize. Without supposedly any symptoms that occur frequently with hypothyroidism it is even harder to get a doctor to consider treatment with thyroid med since FT4 and FT3 are within range; however, the ranges are far too broad, especially to the low end, due to the erroneous assumptions used to establish them. So being within the low end of the range should still be a reason to suspect hypothyroidism. With those numbers plus the relatively low cortisol results it might point to central hypothyroidism. With central, there is a dysfunction in the hypothalamus/pituitary system that results in TSH levels that are too low to adequately stimulate the thyroid gland to produce hormone.
Looking just at the FT4 and FT3 results, note the following statement from an excellent thyroid doctor. "The free T3 is not as helpful in untreated persons as the free T4 because in the light of a rather low FT4 the body will convert more T4 to T3 to maintain thyroid effect as well as is possible. So the person with a rather low FT4 and high-in-range FT3 may still be hypothyroid. However, if the FT4 is below 1.3 and the FT3 is also rather low, say below 3.4 (range 2 to 4.4 at LabCorp) then its likely that hypothyroidism is the cause of a person's symptoms." The ranges here are slightly different, but the implication is clear.
So the person should make sure to supplement adequately the Vitamin D, B12 and ferritin. Also, should followup with the doctor about the cortisol and Free T4 and Free T3 levels. To have any hope of getting most doctors to consider all this, the person should review the following link and circle any symptoms and use that as the primary thing to try and get the doctor to diagnose and treat.
http://endocrine-system.emedtv.com/hypothyroidism/hypothyroidism-symptoms-and-signs.html
As an excellent thyroid doctor has stated, "dosage is irrelevant, only the physiological effect matters." So the whole objective is to increase her dosage as needed to relieve hypothyroids symptoms, but not enough to create hyperthyroid symptoms. That "sweet spot' is called euthyroidism.
Each person has their own setpoint for thyroid hormone levels that work best for them. So it is not feasible to set specific targets. The patient just has to make sure that cortisol, Vitamin D, B12 and ferritin are optimal and then keep raising their thyroid med dosage as required to relieve hypo symptoms. According to the ATA/AACE Guidelines for Hypothyroidism, daily replacement therapy requires approximately 1..6 mcg per kg of weight. This equates to approx. .73 mcg of T4 per pound of body weight, which is most likely conservative and too low of a dose.
If it is possible to get the doctor to do what she wants, I suggest that she reinforce that by giving him a copy of the one pager I mentioned. That will give him the overview needed and provide a link to more scientific evidence, if he wants to access and read the full paper. That information should provide the doctor more confidence in doing what she needs. She should also refer to the information and ask to be tested for Free T4, Free T3, Reverse T3 (at least once, so that the ratio of Free T3 to Reverse T3 can be calculated), cortisol, Vitamin D, B12 and ferritin. From those we can help interpret and advise further. Along with requesting those tests, I suggest that she should ask for an increase of 25 mcg of her med, and ask to come back for followup tests in 5-6 weeks to determine the effect on her symptoms and her Free T4 and Free T3 levels. At point it would also be a good idea to talk about the need to adjust FT4/FT3 levels as needed to relieve symptoms, as discussed in the paper.
The type of doctor she needs is one that understands that due to the numerous processes and variables involved, there is no biochemical test that can be used as a pass/fail decision about a person's thyroid status. Diagnosis should result from a comprehensive review of all patient evaluations: a full medical history of the patient, evaluation for signs/symptoms that occur more frequently with hypothyroidism, and extended testing. Once there is a tentative diagnosis of hypothyroidism, then there needs to be a therapeutic trial of thyroid medication to adequately increase Free T4 and Free T3. If symptoms ease, then the diagnosis is supported and dosage can be increased as needed to relieve symptoms.
Thyroid med dosage should never be determined based on TSH levels. There is scientific evidence that most hypo patients taking thyroid med adequate to relieve symptoms will find that their TSH becomes suppressed below range. If the doctor doesn't understand about this, often the reaction will be that the patient is now hyperthyroid and med has to be reduced. This is wrong. Our bodies evolved with the expectation of a continuous low flow of thyroid hormone. When we take our daily dose all at once, it completely changes the equilibrium among TSH, Free T4, and Free T3. The once daily dose tends to suppress TSH for almost a day, I have read. So the med dose cannot be based on just getting TSH within range. That results in under-medication.
Also note that the daily dose of thyroid med should be deferred until after the blood draw for tests, in order to avoid false high results. Your friend's Free T4 level was at 50% of the range, and her Free T3 was at 48% of the range. I expect that she took her med before the blood draw, so those numbers are likely a bit high; however, I am surprised that they would be that high since she is only taking 50 mcg of T4 med. Of course there are other variables that affect thyroid status beyond just thyroid hormone levels, such as cortisol, Vitamin D and ferritin. So she needs to get re-tested for Free T4, Free T3, Reverse T3 (if possible), cortisol, and Vitamin D. Her Kobalamin (B12) was good. I am not sure bout her ferritin result. Ranges I normally see are 3 times higher than what you show, which I believe is 7 - 120 micrograms per liter. If correct that converts to the same numbers expressed in nanograms per milli liter. My own test report shows 20 - 380 ng/mL. At any rate her ferritin is low and needs to be supplemented with a good iron supplement like ferrous fumarate, ferrous sulfate, or ferrous bisglycinate. Along with about 25 mg of the iron she should take some Vitamin C to avoid stomach distress from the iron. Do you think she can get these tests done?
If you want to confirm what I have suggested, click on my name and then scroll down to my Journal and you will find a one page overview of this material, plus a link to the full paper that supports everything with scientific evidence. I highly recommend that your friend read and learn as much as possible from the information given. If she has trouble getting the tests needed, and also getting treated clinically, as described, then she can give the one pager to her doctor and try to get him to read and reconsider her treatment. If that doesn't work then she will need to find a good thyroid doctor that will do so.
There is a well known symptom description called "brain fog". Regardless, the fact that she was diagnosed as hypothyroid and started on medication is a strong indication that her test results were positive for Hashi's. Now comes the important part, which is getting the doctor to treat clinically, by testing and adjusting Free T4 and free T3 as needed to relieve symptoms, without being influenced by resultant TSH levels. Symptom relief should be all important, not just test results and especially not TSH results when already taking thyroid med.
Hypothyroid patients starting on thyroid med typically find that feel no better because their Free T4 and Free T3 levels stay about the same. The 50 mcg she started on does not increase FT4 and FT3 because it reduces TSH, which then results in less output of natural thyroid hormone from the thyroid gland. Since serum thyroid levels are the sum of both natural thyroid and thyroid med, the net effect is very little until the dose is high enough to basically suppress TSH. After that, further increases in dosage will start to raise FT4 and FT3 levels. Many of us have found that we needed Free T4 at mid-range at least, and Free T3 in the upper third of its range and adjusted from there as needed to relieve hypo symptoms.
So if she has been tested for Free T4 and Free T3 can you get the info and post results and reference ranges? In addition, hypo patients are frequently deficient in Vitamin D B12 and ferritin. So she needs to test for those and then supplement as needed to optimize. D should be at least 50 ng/mL, B12 in the upper end of its range and ferritin shold be at least 100. All 3 are important for a hypothyroid patient.
There is more to discuss, but first please tell me about any thyroid related test results she has and also if tested for Vitamin D, B12 and ferritin.
Can't really provide much information for your friend without getting some additional details. Since she was diagnosed as having Hashimoto's Thyroiditis, what thyroid medication is she taking and what is the daily dosage? Can't say that I have ever heard of anyone describing a symptom like that. In trying to assess a person's thyroid status, symptoms are the most important indicator. Does she have any other symptoms?
Also of importance are the biologically active thyroid hormones, Free T4 and Free T3. If tested for those or any other thyroid tests, please post results and reference ranges shown on the lab report.
I’m sorry my mistake, not hyperthyroidism, she has Hashimotos!