Hi 16york68, I have no medical qualifications so cannot advise what those set of results mean I’m afraid, but the increased platelets caught my attention... I’m just wondering if increased platelets and mild thrombosis is a known potential side effect of synthetic T4? Perhaps one of the wonderful admins here or some in the community might know.
I had the same issue on Oroxine (Australian T4), which resolved once I changed to T3, then NDT and T3. My GP seemed to be of the view that mild thrombosis can be a side-effect for some on synthetic T4. That wasn’t the reason I changed meds though; it was to do with poor T4 to T3 conversion. The above-range levels of platelets cams down to normal within about 6-8 weeks of coming off Oroxine.
I’m sure T4 doesn’t affect all the same way; if it’s a side-effect it may be quite uncommon, but perhaps worth looking into?
These are the possibilities the doctor is looking for:
High red blood cell count may be caused by low oxygen levels, kidney disease or other problems.
Low oxygen levels
Your body may increase red blood cell production to compensate for any condition that results in low oxygen levels, including:
Heart disease (such as congenital heart disease in adults)
Heart failure
A condition present at birth that reduces the oxygen-carrying capacity of red blood cells (hemoglobinopathy)
High altitudes
COPD (chronic obstructive pulmonary disease)
Pulmonary fibrosis (scarred and damaged lungs)
Other lung diseases
Sleep apnea
Nicotine dependence (smoking)
Performance-enhancing drugs
Certain drugs stimulate the production of red blood cells, including:
Anabolic steroids
Blood doping (transfusion)
Injections of a protein (erythropoietin) that enhances red blood cell production
Increased red blood cell concentration
Dehydration (If the liquid component of the blood (plasma) is decreased, as in dehydration, the red blood cell count increases. This is due to the red blood cells becoming more concentrated. The actual number of red blood cells stays the same.)
Kidney disease
Rarely, in some kidney cancers and sometimes after kidney transplants, the kidneys might produce too much erythropoietin. This enhances red blood cell production.
Bone marrow overproduction
Polycythemia vera
Other myeloproliferative disorders
Causes shown here are commonly associated with this symptom.
Surely, if your GP is concerned about those results, he has discussed his concerns with you (or you asked him what they were) and is investigating it further??
What are you doing about your low ferritin, as it was below range at 10 when you posted 2 weeks ago.
How much Vit D are you taking, and are you taking it's important cofactors K2-MK7 and magnesium?
Your B12 is on the low side as well, it's better over 500, top of range is best (900-1000).
I would suggest all these low vitamins are because your inadequately medicated for having zero Thyroid function of your own
Dr Toft, past president of the British Thyroid Association and leading endocrinologist, states in Pulse Magazine,
"The appropriate dose of levothyroxine is that which restores euthyroidism and serum TSH to the lower part of the reference range - 0.2-0.5mU/l.
In this case, free thyroxine is likely to be in the upper part of its reference range or even slightly elevated – 18-22pmol/l.
Most patients will feel well in that circumstance. But some need a higher dose of levothyroxine to suppress serum TSH and then the serum-free T4 concentration will be elevated at around 24-28pmol/l.
This 'exogenous subclinical hyperthyroidism' is not dangerous as long as serum T3 is unequivocally normal – that is, serum total around T3 1.7nmol/l (reference range 1.0-2.2nmol/l)."
You can obtain a copy of the articles from Thyroid UK email print it and highlight question 6 to show your doctor please email Dionne at
tukadmin@thyroiduk.org
Professor Toft recent article saying, T3 may be necessary for many, note especially his comments on current inadequate treatment following RAI or thyroidectomy
If on Levothyroxine only we often need high dose and high FT4 with TSH suppressed in order to get high enough FT3
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