Thyroid Check Intermediate

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Our Essential Thyroid Check includes the classically tested components of thyroid function - TSH, Free T4, free T3 and Thyroid Peroxidase Antibodies - for an in depth analysis of your thyroid function.

Is this blood test right for you?


Do you want to find out more about your thyroid health? Do you have symptoms affecting your mood, energy levels, skin and hair quality? If you're looking for a Essential Thyroid check then this is the test for you!

This private blood analysis for Thyroid Check Intermediate is accessible at all thirty one Spire hospitals around the UK.

Blood Test Explained

Please see below for a breakdown of test information, click each tab to find out more.

TSH
The TSH (thyroid stimulating hormone) is a hormone manufactured in the pituitary gland (found in the brain). It s role is to stimulate thyroxine production in the thyroid gland (found in the neck). A high level within a health screening is associated with an underactive thyroid gland (hypothyroidism) and a low level is found if the thyroid gland is over-active (hyperthyroidism). Changes in the TSH level alone can indicate underlying thyroid problems even if the thyroxine levels are normal.

Free T4
FT4 (free thyroxine) is the active form of thyroxine, released from the thyroid gland in the neck. Its role is to control metabolism - release of energy from all cells of the body. A lack of thyroxine leads to, for example, tiredness and weight gain, whereas an excess will lead to weight loss, rapid heart rate and anxiety. It is generally believed that this level (FT4) is the most reliable indicator of thyroid status - ie whether the gland is over-active (hyperthyroidism) or underactive (hypothyroidism).

Free T3
FT4 (Free Triiodothyronine) - This is one of two hormones produced by the thyroid gland. This measures the level of T3 that is 'free' and is able to regulate metabolism.

Thyroid Peroxidase Antibodies
This is an enzyme found in the thyroid gland mostly. This allows the production of thyroid hormones.
Hyperthyroid symptoms
Weight loss with increased appetite
Warm/clammy skin
Shortness/loss of breath
Feeling warm and sweating excessively
Feeling hyperactive
Rapid heartbeat
Insomnia
Osteoporosis
Raised libido
Irregular bowel movements
Diarrhoea
Thin hair
Fertility problems
Irritability
Hypothyroid symptoms
Fatigue
Feeling cold constantly
Weight gain and/or difficulty losing weight
Brain fog
Issues with Breathlessness
Low basal temperature
Insomnia
Hair loss
Raised cholesterol
Low basal temperature
Dry hair and skin
Loss of libido
Constipation
Depression
Mood swings
Fertility problems

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