Full London Thyroid Check

You can attend immediately for this test between 7 am until 1 pm Mon - Sat.
1-2 Working Days Turnaround Time
Attend Walk in Lab
Accredited Laboratory
GP Referral Included
Doctors Interpretation of your Results
Results sent via Email

Our Full London Thyroid Check takes a detailed analysis into your thyroid function including vitamins as well as thyroid nutrition for a deep investigation into overall thyroid health.

Is this blood test for you?

Do you have symptoms such as fatigue, low energy, weight gain. If you want a deep insight into your thyroid health then this is a great option for you.

Test inclusions are TSH, T4, free T3, free T4, Thyroid peroxidase antibodies, Thyroglobulin antibodies, Vitamin D, Vitamin B12, Ferritin, Folate and C reactive Protein.

Blood Tests Explained

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

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.

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).

Thyroglobulin is around half of the protein content for the Thyroid gland, which is used to store T4 and T3 Thyroid hormone molecules in the Thyroid. Conditions such as hyperthyroidism, Thyroiditis or goitre will cause an elevation of the serum Thyroglobulin. The main purpose of this testing is to indicate as a tumour marker for monitoring patients with differentiated thyroid cancer after a total thyroidectomy.

(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.

This is an enzyme found in the thyroid gland mostly. This allows the production of thyroid hormones.

Vitamin D is an important vitamin, essential for good bone health. It is manufactured in the skin through sunlight exposure and is found in several foods. Prolonged Vitamin D lack can cause osteomalacia, a disease which causes severe structural deformities to the skeleton. Lower level Vitamin D deficiency can lead to a number of non-specific symptoms, including chronic pain, weak bones, frequent infections depression and fatigue. It has been estimated that between 50-70% of people living in the northern Europe (where daylight length reduces your chances of receiving adequate sunlight in the winter) are deficient in this vitamin by March each year which is why health screening for this important vitamin is essential.

is an important vitamin, essential for the normal functioning of many body processes. Deficiency can lead to anaemia (poor quality red blood cells) and neurological (nerve) disorders. It is most abundant in meat products so vegetarians are more vulnerable to deficiency of this vitamin. Pernicious anaemia develops if uptake of vitamin B12 into the blood from the gut is absent or severely impaired, and even if a diet rich in the vitamin is taken, deficiency will occur if this disease is present. Recent evidence suggests that mild deficiency is probably more common than previously thought. Mild deficiency may explain the presence of fatigue and a host of other limiting symptoms

Ferritin is a protein found in the blood which carries iron. Like TIBC/UIBC, and transferrin saturation, it can tell us how much iron is stored in the body. The higher the level within a health screening, the greater the amount of iron stored. This test can be used to detect iron deficiency, and also conditions of iron excess (such as haemochromatosis). Ferritin can also be raised if inflammation is present in the body somewhere.

Folate, or Folic acid, is a B vitamin. It helps the body break down complex carbohydrates into simple sugars to be used for energy.

High values of this 'inflammatory marker' are associated with inflammation from some cause. It is not an exact test, it is nonspecific. Very high readings are associated with polymyalgia rheumatica, a painful muscle ache affecting usually the upper arms or legs, and temporal arteritis - inflammation of the temporal artery which usually presents with severe headache in the temple area. Arthritis and infection can also lead to a raised inflammatory marker.

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

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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