Blood test at home | Medical Laboratory | T4 (thyroxine)

Contact us at 514 975-5226 for a blood test at home for the purpose of evaluating your T4 (thyroxine).

Test T4 (thyroxine)

It exists under 2 forms – the free (active) form and the one bound to a protein, representing a reserve.

A hormone produced by the thyroid gland. The amount is controlled by the TSH (the thyroid-stimulating hormone) and by the amount of iodine. A role in the sugar and fat metabolism and in the bone and nervous system development.

Testing moment

No fasting needed prior to blood sampling.

Low values causes
  • Hypothyroidism (the slackened functioning of the thyroid gland)
  • Certain drugs
High values causes
  • Hyperthyroidism (the accelerated functioning of the thyroid gland)

A test to be preferably carried out in the morning. Stress and drug intake prior to sampling should be avoided. The test measures the free and total level of T4.

To make an appointment for a blood test at home in order to assess your T4 (thyroxine), Call 514 975-5226 .