"Primary hypothyroidism" refers to a condition where the thyroid gland does not produce enough thyroid hormone.
Full definition
About 10 % have laboratory test results consistent
with primary hypothyroidism, and about 45 % have results consistent with central hypothyroidism.
These tests aren't commonly administered because the treatment would be the same whether you have Hashimoto's or
true primary hypothyroidism: thyroid hormone replacement drugs.
Primary hypothyroidism occurs when your thyroid doesn't produce enough thyroid hormone to meet the body's needs, and everything slows down, which is why you may initially notice weight gain, fatigue, and constipation.
The two most common causes of adult -
onset primary hypothyroidism in dogs include lymphocytic thyroiditis and idiopathic atrophy of the thyroid gland.
Congenital primary hypothyroidism may result from one of various forms of thyroid dysgenesis (eg, athyreosis, thyroid hypoplasia) or from dyshormonogenesis (usually an inherited inability to organify iodide).
If this is true, then the incidence
of primary hypothyroidism among FMS patients may be higher than the 10 % to 13 % suggested by measures of TSH and thyroid hormone levels.
«In the United Kingdom, 1.6 million individuals are on long - term levothyroxine regimens, most of whom have been prescribed it
for primary hypothyroidism.
Animals
with primary hypothyroidism (by far the most common type) would be expected to have low serum T4 and / or free T4 concentrations with high endogenous TSH concentrations.
Whether or not you have
primary hypothyroidism, a thyroid hormone conversion dysfunction, or an autoimmune disease, a thyroid hormone replacement drug is the only option given in the mainstream model of care.
I have
primary hypothyroidism.
While medication can be useful and the problem needs to be corrected if indeed it is
primary hypothyroidism, because we know that a thyroid problem in the mother, if untreated, can affect the fetus in terms of having a lower birthrate.
In advanced cases of Hashimoto's and
primary hypothyroidism, this lab test will be elevated (read the post about interpreting your TSH test).
Primary hypothyroidism in an adult patient with protein - calorie malnutrition: a study of its mechanism and the effect of amino acid deficiency.
Vitamin B12 deficiency common in
primary hypothyroidism.
Ninety - five percent of all cases are due to what is called «
primary hypothyroidism.»
Hashimoto's thyroiditis is the most common cause of
primary hypothyroidism, a condition in which the pituitary gland is making adequate TSH but the thyroid gland can't produce enough thyroid hormone in response.
The reported incidence of
primary hypothyroidism in the general non-elderly USA population varies between 1 % and 5 %.
If we trust in the reliability of thyroid function test results, we are compelled to reach a conclusion: If 10 % of FMS patients have
primary hypothyroidism, and 44 % have central hypothyroidism, the total percentage of FMS patients with hypothyroidism is 54 %.
Topics include hypothyroidism caused by mental or metabolic stress,
primary hypothyroidism, and how cells become resistant to thyroid hormones.
Primary hypothyroidism can be easily controlled with an excellent prognosis.
A: The most common cause of hypothyroidism is due to impairment of the thyroid gland (or thyroiditis), leading to
primary hypothyroidism.
Primary hypothyroidism is the most common thyroid disorder in dogs.
Primary Hypothyroidism is due to the atrophy of the thyroid gland.
Canine thyroid disease is categorized as either
primary hypothyroidism (the disease started in the thyroid gland) or secondary hypothyroidism (when another problem in the body triggers a thyroid problem).
These were all examples of
Primary Hypothyroidism — that is, the problem was within the youngster's thyroid gland itself.
Autoimmune thyroiditis (also called lymphocytic thyroiditis) is the most common cause of
primary hypothyroidism in dogs and is known to be an inherited disease.
In
primary hypothyroidism, TSH (Thyroid Stimulating Hormone) levels are high and T4 (thyoxine) and T3 (precursor of thyroxine) levels are low.
Although dysfunction anywhere in the hypothalamic - pituitary - thyroid axis may result in thyroid hormone deficiency, > 95 % of clinical cases of hypothyroidism in dogs appear to result from destruction of the thyroid gland itself (
primary hypothyroidism).
With quantitative measurement of thyroidal 99mTc uptake, there is little to no overlap between dogs with
primary hypothyroidism and dogs with nonthyroidal illness.
Although a few dogs with normal serum TSH concentrations have secondary hypothyroidism, pituitary TSH deficiency is extremely rare, and most dogs with normal TSH concentrations (ie, a false - negative result) have
primary hypothyroidism.