Thyroid Health
because TSH alone misses the signal.
We run the full thyroid cascade - TSH, Free T4, Free T3, Reverse T3 - plus TPO and TG antibodies. Subclinical patterns, conversion problems, and autoimmunity all show up here before a single-marker panel would flag them.
- No insurance required
- HSA & FSA eligible
- CLIA-accredited labs
Women are 5–8× more likely to develop thyroid disease - and most cases are caught late.
TPO antibodies commonly precede overt disease by years. Free T3 - the active form - drops with chronic dieting, stress and perimenopause while TSH looks normal on paper. A full cascade closes that gap.
The 62 biomarkers in this panel - and why each one.
Tap a marker to read the clinical note and the women-specific context.
TSH
TSH is the pituitary signal driving thyroid output; the most sensitive measure of overall thyroid axis status.
Thyroid Peroxidase Antibodies (TPO)
Autoantibodies attacking the thyroid enzyme responsible for hormone synthesis; the hallmark of Hashimoto's thyroiditis.
Thyroglobulin Antibodies
Autoantibodies targeting thyroglobulin, the protein scaffold for thyroid hormone production; co-marker for Hashimoto's.
T4 Free (FT4)
Free thyroxine is the main thyroid hormone available to tissues for conversion to the active T3 form.
T3 Total
Total T3 measures all circulating triiodothyronine — the biologically active thyroid hormone that drives metabolism.
T3, Free
Free T3 is the metabolically active thyroid hormone fraction available for cellular uptake.
Reverse T3
An inactive T4 metabolite that competes with free T3 at receptor sites; elevated by chronic stress, inflammation, and caloric restriction.
Selenium
Essential cofactor for thyroid peroxidase and deiodinase enzymes; required for T4-to-T3 conversion.
Iodine
The essential building block of thyroid hormones; both deficiency and excess disrupt thyroid function.
White Blood Cell Count
Total count of white blood cells; the front-line defense of the immune system.
Red Blood Cell Count
Total red blood cell count; used alongside hemoglobin and hematocrit to assess anemia.
Hemoglobin
The oxygen-carrying protein in red blood cells; the primary measure of anemia severity.
Hematocrit
The fraction of blood volume occupied by red blood cells.
MCV
Mean corpuscular volume — the average size of red blood cells; elevated in B12/folate deficiency, low in iron deficiency.
MCH
Mean corpuscular hemoglobin — the average amount of hemoglobin per red cell; low MCH is an early signal of iron depletion.
MCHC
Mean corpuscular hemoglobin concentration — classic for iron-deficiency anemia when low.
RDW
Red cell distribution width — measures variability in red cell size; elevated RDW reflects oxidative stress and mixed deficiencies.
Platelet Count
The circulating particles that initiate clotting; low counts increase bleeding risk, high counts can reflect inflammation or iron deficiency.
MPV
Mean platelet volume — larger platelets are more reactive; elevated MPV is associated with cardiovascular and thrombotic risk.
Absolute Neutrophils
Absolute count of neutrophils — the first responders to bacterial infection.
Absolute Band Neutrophils
Immature neutrophils (bands) — elevated counts (left shift) indicate acute bacterial infection or bone marrow stress.
Absolute Metamyelocytes
Immature granulocyte precursors; presence in blood indicates bone marrow stress or severe infection.
Absolute Myelocytes
Granulocyte precursors; circulating myelocytes indicate abnormal bone marrow release.
Absolute Promyelocytes
Very early granulocyte precursors; their presence in blood is abnormal and requires urgent evaluation.
Absolute Lymphocytes
Absolute count of lymphocytes — key mediators of adaptive immunity including T and B cells.
Absolute Monocytes
Absolute monocytes; these differentiate into macrophages and dendritic cells in tissue.
Absolute Eosinophils
Absolute eosinophils; respond to allergic reactions and parasitic infections.
Absolute Basophils
Absolute basophils — the rarest white cell, involved in allergic and inflammatory responses.
Absolute Blasts
Blast cells in peripheral blood; any presence is abnormal and requires immediate haematology referral.
Absolute Nucleated RBC
Nucleated red blood cells in peripheral blood; normally only present in foetal circulation and severe anaemia.
Neutrophils %
Percentage of neutrophils in the white cell differential; elevated in bacterial infection and stress.
Band Neutrophils %
Percentage of band (immature) neutrophils; elevated in acute bacterial infection.
Metamyelocytes %
Percentage of metamyelocytes; should be absent from normal peripheral blood.
Myelocytes %
Percentage of myelocytes; absent from normal blood.
Promyelocytes %
Percentage of promyelocytes; absent from normal blood.
Lymphocytes %
Percentage of lymphocytes in the white cell differential; reflects adaptive immunity.
Reactive Lymphocytes %
Atypical (reactive) lymphocytes; elevated in viral infections such as EBV and CMV.
Monocytes %
Percentage of monocytes; elevated in chronic infections and inflammatory conditions.
Eosinophils %
Percentage of eosinophils; elevated in allergic and parasitic conditions.
Basophils %
Percentage of basophils; mildly elevated counts can accompany allergic inflammation or thyroid disease.
Blasts %
Percentage of blasts; absent from normal blood. Any presence requires urgent evaluation.
Nucleated RBC %
Nucleated RBCs per 100 WBCs; should be absent in normal adults.
CBC Comment
Pathologist or automated comment on peripheral blood findings.
Glucose
Fasting serum glucose — the primary screen for diabetes and metabolic dysfunction.
Urea Nitrogen (BUN)
Blood urea nitrogen — a kidney filtration marker; elevated with dehydration or renal impairment.
Creatinine
Muscle waste product filtered by the kidneys; used to estimate GFR.
eGFR
Estimated glomerular filtration rate — the best single-number indicator of kidney function, calculated from creatinine using CKD-EPI.
BUN/Creatinine Ratio
The ratio of BUN to creatinine; helps distinguish pre-renal from intrinsic kidney causes of elevated BUN.
Sodium
Primary extracellular cation; regulates fluid balance and nerve/muscle function.
Potassium
Primary intracellular cation; critical for heart rhythm, muscle contraction, and nerve signalling.
Chloride
The main anion that balances sodium; used to evaluate acid-base and electrolyte status.
Carbon Dioxide (CO₂)
Serum bicarbonate reflecting the body's acid-base reserve; low values can indicate metabolic acidosis.
Calcium
Total serum calcium; critical for bone density, muscle contraction, and nerve signalling.
Protein, Total
Total serum protein (albumin + globulins); reflects overall nutritional status and liver and immune function.
Albumin
The most abundant serum protein; reflects liver synthetic function, nutrition, and systemic inflammation.
Globulin
Calculated globulin fraction (total protein minus albumin); includes immunoglobulins, clotting factors, and transport proteins.
Albumin/Globulin Ratio
The A/G ratio; a low ratio (reversed) can indicate autoimmune disease, liver disease, or malignancy.
Bilirubin, Total
The breakdown product of haemoglobin; elevated in liver disease, haemolysis, or bile duct obstruction.
Alkaline Phosphatase
Enzyme produced in liver and bone; elevated in cholestasis, bone disease, and pregnancy.
AST
Aspartate aminotransferase — liver and muscle enzyme; elevated with hepatocellular damage or intense exercise.
ALT
Alanine aminotransferase — the most specific liver enzyme; elevated in hepatitis, fatty liver, and medication toxicity.
hs-CRP
High-sensitivity C-reactive protein — the most sensitive blood measure of systemic low-grade inflammation.
Order this panel if any of these fit.
- 1You have unexplained fatigue, weight changes or cold intolerance
- 2You've had postpartum hair loss or mood shifts
- 3A close relative has Hashimoto's, Graves' or hypothyroidism
- 4Your TSH is 'borderline' and you want the full picture
Three steps, no waiting room.
Choose your panel and complete a 2-minute intake. We schedule your lab visit or at-home phlebotomy appointment right after checkout.
Choose a Quest Diagnostics lab visit or have a certified phlebotomist come to you (available in select ZIP codes at checkout). Draws take about 8 minutes.
Results in 5–7 days - a plain-language report with research-backed ranges for women and flags on anything that warrants follow-up. Share with your own clinician for interpretation.
Things people ask before ordering.
Not for women with symptoms. TSH is a pituitary signal - it lags behind actual thyroid-hormone availability. Free T3 and Reverse T3 tell you what's reaching your cells.
Claims on this page are grounded in peer-reviewed research and society guidelines.
- [1]American Thyroid Association: General Information / Press Room - prevalence statistics.ATA
- [2]Canaris GJ et al. The Colorado Thyroid Disease Prevalence Study.Arch Intern Med, 2000
- [3]Garber JR et al. Clinical Practice Guidelines for Hypothyroidism in Adults.AACE/ATA, 2012
- [4]Hollowell JG et al. Serum TSH, T4, and Thyroid Antibodies in the U.S. Population (NHANES III).JCEM, 2002
EllaDx panels are not a substitute for medical diagnosis. All results are reviewed by a licensed physician. Always consult a qualified clinician about changes to your care.