On your lab requisition: Quest “Testosterone, Free (Dialysis), Total (MS) and Sex Hormone Binding Globulin” (test code 37073)
The short answer
Testosterone, Free & Total + SHBG measures Total Testosterone, Free Testosterone and SHBG from a standard blood draw. At TestWell it costs $69.99 plus a $6 lab processing fee, needs no fasting, and results post in 3–5 business days. Physician-authorized with no doctor's visit or insurance needed; draw at Quest or Labcorp.
Hospital Lab
$370
cash pay
Other Labs
$144
+ lab fees
TestWell
$69.99
+ $6 lab processing fee
This test combines total testosterone by LC/MS and free testosterone (equilibrium dialysis at Quest; Labcorp's direct free-testosterone assay when drawn at Labcorp) with Sex Hormone Binding Globulin (SHBG) in a single blood draw. SHBG is the liver-made protein that binds most of your circulating testosterone; when it's high or low, total testosterone alone can be misleading. Measuring all three together shows not just how much testosterone you have, but how much is biologically available — the picture clinicians actually use when evaluating symptoms, monitoring TRT, or investigating hormone imbalance.
Hormone testing measures the chemical messengers that regulate energy, mood, sex drive, weight, and reproduction — helping pinpoint imbalances that cause a wide range of symptoms.
Anyone with unexplained fatigue, mood changes, libido changes, weight changes, irregular cycles, or considering hormone replacement therapy.
Sample Type
Blood draw
Fasting
Not required
Results In
3–5 business days
Performed At
Quest or Labcorp
Your Testosterone, Free & Total + SHBG results will include values for each of the 3 biomarkers tested, along with reference ranges. Results are reviewed by a licensed physician before being released to your secure portal.
If any values fall outside the normal range, your report will include guidance on what that may mean and recommended next steps. You'll receive an email notification when your results are ready, typically within 3–5 business days.
Typical reference range layout
Lab reports show where your value sits relative to established reference intervals—your physician interprets this in context for you. Already have results? Analyze them with your AI assistant against our physician-reviewed ranges.
Best drawn in the morning (before 10 AM). No fasting required.
What can throw off this result
Physician-reviewed “Before your test” pages — what each factor does, for how long, and what to do about it.
The short answer
The right first test when you want testosterone results a clinician can actually interpret in one pass. Total testosterone alone misleads whenever SHBG is high or low - which is exactly what happens with age, weight, thyroid issues, and many medications. This draw measures the total, the free (dialysis method), and the SHBG that connects them, for $15 more than free-and-total alone.
We would rather you order the right test than the most expensive one.
Standard venous draw at a Quest location, best before 10 AM when testosterone peaks. No fasting. $69.99 self-pay for all three measurements from one tube - assembling the same pair of tests at Quest's consumer store runs about $144.
An at-home draw is not recommended for this test — it needs a lab-based collection to be accurate.
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 |
|---|---|---|
| Total testosterone | ~300-1000 ng/dL (adult men; labs vary) | All circulating testosterone, bound and unbound. The screening number - but the one most distorted by SHBG shifts. |
| Free testosterone (equilibrium dialysis) | ~5-21 ng/dL (adult men; labs vary) | The unbound, biologically active fraction, measured by the reference method rather than estimated. Low free T with symptoms is the pattern that matters clinically even when total looks acceptable. |
| SHBG | ~10-57 nmol/L (adult men; labs vary) | The liver-made protein binding most of your testosterone. High SHBG (age, hyperthyroidism, some medications) = normal total but low free. Low SHBG (obesity, insulin resistance) = the reverse. This number explains discordant results. |
This section medically reviewed by Youmna DiStefano, MD — updated August 2026. General health information, not medical advice; interpret results with a qualified clinician.
A Free & Total Testosterone + SHBG test costs $69.99 at TestWell — $75.99 all-in when ordered alone, because the $6 lab processing fee is charged once per order, with no draw fee or physician fee added. Ordered directly from the labs' own consumer sites, the closest equivalent lists at $159.00 at Labcorp OnDemand (list prices checked Sep 12, 2026; see the notes on how the products differ). Hospital outpatient labs typically bill around $370.00 self-pay for the same test, and often more. With insurance, what you pay depends on your deductible and your plan's negotiated rate; TestWell's price is fixed before the draw and is HSA/FSA-eligible.
| Where you order | Price | One test, all-in | Notes |
|---|---|---|---|
| TestWell (drawn at Quest) | $69.99 | $75.99 | Includes the one $6 lab processing fee, charged once per order |
| TestWell (drawn at Labcorp) | $94.99 | $100.99 | Labcorp's own cost for this test is higher; same order, same portal, same physician review |
| Labcorp OnDemand (Labcorp's own site) | $159.00 | $159.00 | Marker lists differ; both are total + free testosterone with SHBG · list price checked Sep 12, 2026 |
| Hospital outpatient lab, self-pay (typical) | $370.00 | $370.00 | Reference figure; hospital charges vary widely by facility and are often higher |
52% less than the lower lab-direct list price, for the same draw at the same lab. Lab test codes: Quest test code 37073. Competitor prices are read from the linked public pages and re-checked regularly; the labs' sites may add taxes or change prices without notice.
Compare more: Quest Diagnostics price list · Labcorp price list · Quest vs Labcorp · Lab test price checker
Most Testosterone, Free & Total + SHBG results are available in 3–5 business days after your specimen arrives at the lab. You'll get an email the moment results are ready, with everything viewable in your TestWell portal.
Blood draw. Sample is collected at a Quest, Labcorp, or BioReference patient service center near you, or via at-home phlebotomy where available.
On TestWell, the Testosterone, Free & Total + SHBG is $69.99. Quest Direct lists comparable tests at $144. Walk-in hospital labs typically bill $370 or more without insurance. Insurance is not required — pay one all-in price.
No fasting required for the Testosterone, Free & Total + SHBG. Best drawn in the morning (before 10 AM). No fasting required.
The Testosterone, Free & Total + SHBG is available at Quest and Labcorp patient service centers nationwide. Order online at TestWell, pick your preferred lab, and we'll generate a digital requisition for the location closest to you.
Because SHBG is the explanation layer. Free and total tell you WHAT your levels are; SHBG tells you WHY they disagree when they do - and points at the cause (thyroid, weight, medications, age). For $15 more on the same draw, it's the difference between a result and an interpretation.
$69.99 self-pay on TestWell for all three markers from one draw. Buying free+total ($85) and SHBG ($59) separately at Quest's consumer storefront runs about $144. HSA/FSA eligible, no doctor's visit needed.
No fasting. Draw in the morning, ideally before 10 AM, when testosterone peaks - afternoon draws read misleadingly low. If you're on biotin supplements, skip them for 48 hours (they can interfere with some hormone assays).
That's precisely the case it's built for. Rising SHBG - with age, thyroid changes, or certain medications - binds more of your total, so the free fraction quietly falls while the total stays in range. Measuring all three shows whether that's your pattern; bring the results to your clinician for the treatment conversation.
Ordered directly, the closest equivalent lists at $159.00 at Labcorp OnDemand (prices checked September 2026). TestWell orders the same test at the same Quest or Labcorp patient service centers for $69.99 — $75.99 all-in with the $6 per-order lab processing fee — paid out of pocket at checkout with no insurance, doctor's visit or draw fee; HSA and FSA cards are accepted.
Common medications, oral contraceptives and estrogen, biotin supplements and exercise can change a Free & Total Testosterone + SHBG test result without anything being wrong. Common medications can raise SHBG and can lower Total Testosterone — free testosterone and SHBG interpreted in that context. Oral contraceptives and estrogen can raise SHBG and can lower Total Testosterone — expected; interpret testosterone with it. Biotin supplements can shift Total Testosterone — stop biotin ≥72 hours; tell the lab if you can't. Exercise can raise Total Testosterone — draw in the morning before training. Each factor is covered on our physician-reviewed "Before your test" pages; when one applies, the fix is usually to remove it and retest.
The CPT code for a Free & Total Testosterone + SHBG test is 84402, 84403, 84270. You can order it from TestWell for $69.99 — no doctor's visit or insurance required, with results in 3–5 business days.
The Free & Total Testosterone + SHBG test is Quest Diagnostics test code 37073 ("Testosterone, Free (Dialysis), Total (MS) and Sex Hormone Binding Globulin") (CPT 84402, 84403, 84270). TestWell orders it under that code for $69.99 at Quest — no doctor's visit or insurance required, results in 3–5 business days. Codes verified against the labs' catalogs in 2026.
Medically reviewed by Youmna DiStefano, MD · Last reviewed September 2026
Related guide
Free vs Total Testosterone: What Each Test Measures, Which One You Need, and Why SHBG Decides
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How Much Does a Testosterone Test Cost? Prices by Setting, Total vs Free, With and Without Insurance
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Testosterone Testing: Which Test Do You Actually Need (Total, Free, SHBG, or Full TRT Panel)?
TestWell Price
$69.99
+ $6 lab processing fee at checkout
No insurance needed · HIPAA compliant
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Testosterone, Free & Total + SHBG
$69.99