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PCOS Test (EFP1)
4th July 2021
Advanced Thyroid Hormones Test (EFP3)
4th July 2021
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Basic Thyroid Hormones Test (EFP2)


A simple finger-prick test to measure basic thyroid hormones.


A simple finger-prick test to measure basic thyroid hormones.


Which biomarkers are tested?

  • Thyroid stimulating hormone (TSH)
  • Free thyroxine (FT4).


Who should take this test?

  • Women and men who are planning a pregnancy or actively trying to conceive.


What is the process?

  1. Order online
  2. Receive a discrete test kit 
  3. Collect the sample
  4. Post the kit using free packaging provided
  5. Receive your results reviewed by our clinical team


How long will it take to get the results?

Up to 2 working days


About Basic Thyroid Hormones Test

Thyroid stimulating hormone (TSH) is produced by the pituitary gland in the brain. This hormone stimulates the thyroid gland, located in the front of your neck, to produce thyroid hormones: thyroxine (T4) and triiodothyronine (T3). 

Some thyroxine (T4) in your blood is bound to proteins, and some thyroxine (T4) circulates freely, or unbound from proteins. Testing for unbound thyroxine (FT4) is more accurate than testing for bound thyroxine (T4). In peripheral tissues, thyroxine (T4) is changed to triiodothyronine (T3) which is the most active thyroid hormone. These hormones control your metabolism.

The thyroid gland can overproduce (hyperthyroidism) or underproduce (hypothyroidism) thyroid hormones. Hypothyroidism and hyperthyroidism can each negatively impact fertility—both the ability to become pregnant and the ability to carry a baby to term.

Andreia Trigo RN


If your thyroid level hormones are low (hypothyroidism), your fertility may be affected by:

If your thyroid level hormones are high (hyperthyroidism), your fertility may be affected by:

  • Disruption of the menstrual cycle, making it harder to conceive.
  • Interference with the release of an egg from the ovaries (ovulation)
  • Increased risk of miscarriage
  • Increased risk of premature birth
  • Disrupting the menstrual cycle
  • Causing a reduction in sperm count
  • Increasing the risk of early-term miscarriage
  • Increasing the risk for premature birth
Common symptoms of low thyroid hormone levels include:Common symptoms of high thyroid hormone levels include:
  • Frequent and heavy menstrual cycles
  • Fatigue
  • Lethargy
  • Muscle soreness
  • Forgetfulness
  • Dry skin and hair
  • Weight gain
  • Intolerance to cold
  • Feeling nervous and anxious
  • Palpitations
  • Weight loss

Once diagnosed, thyroid imbalances can be treated but even then it is important to continue to monitor levels of thyroid hormones to ensure that your levels remain optimal.



The Small Book of Fertility Hormones


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