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Thyroid TSH w/ Free T4 & Free T3

FAQ

  1. What is the difference between T3, T4, and TSH in thyroid testing?

    The thyroid produces T3 and T4 hormones; the pituitary gland produces Thyroid-stimulating hormone (TSH). TSH stimulates the production of these two hormones (T3 and T4). T4 is the main circulating form of thyroid hormone and acts as a source of nourishment for the cells. Healthy kidneys, liver, gastrointestinal tract, and other organs will help convert T4 into T3, which is the active form. Together, they help determine if an individual has:

    • Normal functioning thyroid
    • Hypothyroidism
    • Hyperthyroidism
    • Pituitary disorders
  2. How accurate is TSH when testing the thyroid?

    TSH is very accurate in testing the thyroid. If a person has low or high levels of TSH, then they likely have hypo or hyperthyroidism, respectively. The pituitary gland regulates TSH production, so if there is a problem with your thyroid gland, TSH production will be abnormal.

  3. What does the TSH thyroid blood test tell you?

    TSH is the hormone that travels through the bloodstream and gives orders to the thyroid, which produces T3 and T4 in accordance. TSH levels provide insight into what your thyroid hormone levels are:

    • If you have a high TSH, your pituitary gland tells your thyroid to produce more hormones.
    • If you have a low TSH, it can mean your body isn't using its available hormones effectively, possibly because you don't have enough in circulation or your thyroid isn't responding efficiently to the pituitary gland.

    If any of these are your case, speak to your doctor to explore treatment options.

  4. Do I need to visit a doctor?

    No doctor visit needed.

  5. How do I get my results?

    You get your results via email as soon as they are available.

  6. Does my lab prescription expire?

    Your lab prescription never expires.*

Low prices since 2005
Same day lab order by email
Labs within 1 mile of 90% of the US
Lab test prescriptions NEVER expire*
Over 650 blood work labs to choose
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Low prices since 2005
Same day lab order by email
Labs within 1 mile of 90% of the US
Lab test prescriptions NEVER expire*
Over 650 blood work labs to choose
Secure, encrypted & accurate testing
Thyroid TSH w/ Free T4 & Free T3 More info
3 Biomarkers
More info

Thyroid TSH w/ Free T4 & Free T3  (Quest Diagnostics) Same day lab order delivery

Price: $83.19
This Thyroid Panel with TSH, Free T4 & Free T3 measures thyroid function, which plays an important role in regulating your metabolism and your body's "thermostat". Physicians use this thyroid blood test to diagnose both hyper and hypothyroidism (over and underactive thyroid disease).

Significant deviations from the normal range may require further evaluation by your physician.
Tri-iodothyronine Free (FT3)
Thyroxine Free (FT4)
Thyroid-Stimulating Hormone (TSH)

No fasting required.

Estimated turnaround for results is 3 business days. If confirmation testing is required, the estimated time may be extended.

Thyroid TSH w/ Free T4 & Free T3  (LabCorp) Same day lab order delivery

Price: $155.49
This Thyroid Panel with TSH, Free T4 & Free T3 measures thyroid function, which plays an important role in regulating your metabolism and your body's "thermostat". Physicians use this thyroid blood test to diagnose both hyper and hypothyroidism (over and underactive thyroid disease).
Significant deviations from the normal range may require further evaluation by your physician.
Thyroid-Stimulating Hormone (TSH)
Thyroxine Free (FT4), Direct
Tri-iodothyronine Free (FT3)
This test may exhibit interference when sample is collected from a person who is consuming a supplement with a high dose of biotin (also termed as vitamin B7 or B8, vitamin H or coenzyme R). It is recommended to stop biotin consumption at least 72 hours prior to the collection of specimen.

Estimated turnaround for results is 3 business days. If confirmation testing is required, the estimated time may be extended.

Questions about online blood testing or how to order a lab test?

Speak with our Wellness Team: (877) 283-7882
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