Is a TSH (Thyroid Stimulating Hormone) worth it?
What it costs, whether to test at home or at Quest or Labcorp, and how to read your results - reviewed and updated June 2026.
The short answer
Yes - TSH is the correct first test for a suspected thyroid problem. One inexpensive draw screens for both underactive and overactive thyroid, and it changes before T4 and T3 do, so it is the most sensitive single thyroid marker.
Who should order it (and who can wait)
Worth it if you...
- •Fatigue, unexplained weight change, cold intolerance, or hair thinning
- •Irregular periods, fertility work-up, or a family history of thyroid disease
- •Anyone on thyroid medication checking their dose
- •A general wellness baseline, especially for women over 35
You can probably wait if you...
- •You want a full thyroid picture up front - a TSH + Free T4 or complete thyroid panel is a better single order
- •You checked a normal TSH recently with no new symptoms
We would rather you order the right test than the most expensive one.
At-home vs Quest vs Labcorp
The most common question we get. The short version: the lab and the result are the same - you are choosing where the blood is drawn.
Walk into a lab
Get drawn at any Quest or Labcorp location - thousands nationwide, often same-day. Best for speed and lowest cost.
At-home draw
A mobile phlebotomist comes to you, where available. Same venous sample, drawn at your kitchen table.
Same result
Whichever you pick, it is run on the same CLIA-certified analyzers with the same reference ranges.
TSH is a venous draw at Quest or Labcorp, or an at-home mobile draw where available. No fasting required, though drawing at a consistent time of day improves comparability between tests because TSH has a mild daily rhythm.
How to read your results
The markers that matter most and what an out-of-range value can mean. Reference ranges vary by lab, age, and sex.
| Marker | Typical range | What it means |
|---|---|---|
| TSH | ~0.45-4.5 mIU/L | Above the range usually means an underactive thyroid (hypothyroidism); below it usually means an overactive thyroid (hyperthyroidism). Pregnancy and age shift the optimal range. |
Frequently asked questions
Ready to order your TSH (Thyroid Stimulating Hormone)?
$26.99, physician-authorized, results in 1–3 business days. No insurance or doctor's visit required.
About this guide
Reviewed June 20, 2026. This is general health information, not medical advice, diagnosis, or treatment. Reference ranges vary by laboratory, age, sex, and clinical context - always interpret results with a qualified healthcare provider. Lab analysis is performed at CLIA-certified Quest Diagnostics and Labcorp facilities.