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Thyroid Health, Complete Panel

Test ID: A897

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The thyroid gland is a vital hormone gland that helps regulate many different processes around the body. When thyroid hormones are out of balance, multiple body systems are affected. Hyperthyroidism occurs when the thyroid produces too many hormones and speeds up processes around the body, including increased body temperature, heart rate, and digestion. Hypothyroidism occurs when the thyroid doesn’t produce enough thyroid hormones, and processes around the body slow down, including a slower heart rate, a constant feeling of cold, and slower digestion leading to constipation.



How to order a test

What is Included?

Measurement of thyroid stimulating hormone (TSH), free thyroxine (T4), free triiodothyronine (T3), thyroglobulin antibody (anti-Tg), and thyroid peroxidase antibody (anti-TPO) levels with chemiluminescent microparticle immunoassays.

Turnaround Time

1 – 3 business days
The turnaround time is not guaranteed. The average turnaround time is 1 – 3 business days from the date that the sample arrives at the laboratory. Shipping time for the sample is not included. Additional time is required if the case requires confirmatory or reflex testing, or if the sample is insufficient, or if a recollection is required.

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Preparation Before Specimen Collection


Specimen Type



50 μL in a microtainer


Microtainer (regular blood tube)

Collection Method

This test requires a blood sample from a finger prick. All supplies for sample collection are provided in the kit.

  1. First wash and dry hands. Warm hands aid in blood collection.
  2. Clean the finger prick site with the alcohol swab and allow to air dry.
  3. Use the provided lancet to puncture the skin in one quick, continuous and deliberate stroke.
  4. Wipe away the first drop of blood.
  5. Massage hand and finger to increase blood flow to the puncture site. Angle arm and hand downwards to facilitate blood collection on the fingertip.
  6. Drip blood into the microtainer tube.
  7. Dispose of all sharps safely and return sample to the laboratory in the provided prepaid return shipping envelope.

NOTES: Avoid squeezing or ‘milking’ the finger excessively. If more blood is required and blood flow stops, perform a second skin puncture on another finger. Do not touch the fingertip.

Specimen Storage

Maintain specimen at temperatures between 2°C and 30°C during storage and transport.

Specimen Stability

Blood samples can be refrigerated or kept at room temperature for up to 7 days.

Causes for Rejection

  • Incorrect or incomplete patient identification
  • Incorrect specimen collection
  • Inappropriate storage and transport conditions
  • Incorrect specimen volume



To measure thyroid stimulating hormone (TSH), free thyroxine (T4), free triiodothyronine (T3), thyroglobulin antibody (anti-Tg), and thyroid peroxidase antibody (anti-TPO)levels in a blood sample, to aid in the investigation of thyroid function.


  • This report is not intended for use in medico-legal applications.
  • These results should be interpreted in conjunction with other laboratory and clinical information.
  • Correct specimen collection and handling is required for optimal assay performance.
  • Assay interference may occur in specimens from individuals routinely exposed to animals or to animal serum products. Additional clinical or diagnostic information may be required for these specimens.
  • False results may occur in specimens from individuals that have received preparations of mouse monoclonal antibodies for diagnosis or therapy. Additional clinical or diagnostic information may be required for these specimens.
  • The presence of anti-Tg or anti-TPO autoantibodies does not confirm autoimmune thyroid disease or abnormal thyroid function.


Chemiluminescent microparticle immunoassays:
Alinity i TSH assay
Alinity i Free T4 assay
Alinity i Free T3 assay
Alinity i Anti-Tg assay
Alinity i Anti-TPO assay

Reference Intervals

Thyroid Stimulating Hormone (TSH) 0.35 – 4.94 μIU/mL
Free Thyroxine (T4) 0.70 – 1.48 ng/dL
Free Triiodothyronine (T3 1.58 – 3.91 pg/mL
Thyroglobulin Antibodies (anti-Tg)  < 4.11 IU/mL
Thyroid Peroxidase Antibodies (anti-TPO)  < 5.61 IU/mL

These reference ranges were obtained from the Alinity i package inserts listed in Methodology section above.