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LetsGetChecked - Thyroid Blood Spot Test Kit

The LetsGetChecked - Thyroid Blood Spot Test Kit includes Thyroid Stimulating Hormone (TSH), Free Thyroxine (FT4), and Free Triiodothyronine (FT3). Get 30% off today with our exclusive discount code WALKINLAB.

Test Code: LGC1004

Also Known As:

Methodology:

Preparation: The sample must be collected before 10am on a Monday, Tuesday, Wednesday or Thursday and returned on the same day.

Test Results: 2-5 business days once the lab receives the specimen. May take longer based on weather, holiday, or lab delays.


Details:

Walk-In Lab is an affiliate of LetsGetChecked. By adding this kit to your cart you will be directed to the LetsGetChecked website. LetsGetChecked Kits must be purchased separately from other Walk-In Lab tests. Walk-In lab has negotiated a special price for our customers. Please enter the coupon code that is provided on the top banner of the LetsGetChecked site to receive the special price.

Description

Thyroid Stimulating Hormone (TSH)

Thyroid stimulating hormone (TSH), also known as thyrotropin, is a hormone produced by the pituitary gland of the brain. The release of TSH stimulates the thyroid gland to produce thyroxine (T4) and triiodothyronine (T3). These hormones regulate the body’s metabolism.

Free Thyroxine (FT4)

Free thyroxine (FT4) is the biologically active form of thyroxine, a hormone produced in the thyroid gland to regulate your metabolism. FT4 is not bound to proteins and is available for use by the tissues of the body. Raised FT4 levels can indicate an overactive thyroid (hyperthyroidism), low FT4 levels can indicate an under active thyroid (hypothyroidism).

Free Triiodothyronine (FT3)

Free triiodothyronine (FT3) is one of two major hormones produced by the thyroid gland. FT3 is more biologically active than thyroxine (T4) and is required to regulate metabolism. FT3 is produced directly by the thyroid gland, and through the conversion of T4 to T3 in other cells of the body.

Hypothyroidism (Underactive Thyroid) occurs when the thyroid gland is not producing a sufficient level of thyroxine (T4) and triiodothyronine (T3).

  • Weight gain
  • Fatigue or feeling tired all the time
  • Slow pulse or heart rate
  • Hair loss or thinning
  • Poor tolerance of the cold
  • Depression
  • Dry, coarse or thickened skin
  • Constipation
  • Hand tingling or pain (carpal tunnel syndrome)
  • Irregular period or low sex drive
  • Muscle cramps
  • Impaired memory

Hyperthyroidism (Overactive Thyroid) occurs when the thyroid gland produces an excessive level of thyroxine (T4) and triiodothyronine (T3).

  • Weight loss
  • Fatigue or feeling tired all the time
  • Increase or rapid heart rate
  • Tremors (usually in the hands)
  • Heat intolerance or excessive sweating
  • Difficulty sleeping
  • Excessive sweating or fever
  • Frequent colon movements or diarrhea
  • Anxiety
  • Irregular period
  • Low sex drive
  • Enlarged thyroid gland (goiter)
  • Eye condition related to hyperthyroidism

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