Basic Thyroid Blood Test Profile

Test inclusions are TSH, FT4


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...

Test inclusions are TSH, FT4


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).


Symptoms

Below we have explained each symptom.

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