The short answer
Measures the hormone that regulates blood pressure and electrolyte balance, measured from a standard blood draw. At TestWell it costs $61.99 plus a $6 lab 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
$180
cash pay
Other Labs
$79
+ lab fees
TestWell
$61.99
+ $6 lab fee
Aldosterone is a hormone produced by the adrenal glands that plays a central role in regulating blood pressure by controlling sodium and potassium balance. Elevated aldosterone (hyperaldosteronism) is a treatable but often overlooked cause of resistant hypertension, while low levels can indicate adrenal insufficiency. This test is especially important for patients with high blood pressure that does not respond well to standard medications.
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 Aldosterone results will include values for each of the 1 biomarker 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.
No fasting required. Discuss any blood pressure medications with your provider before testing, as some can affect results.
A Aldosterone test costs $61.99 at TestWell — $67.99 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 $89.00 at Quest Health and $139.00 at Labcorp OnDemand (list prices checked Sep 12, 2026; see the notes on how the products differ). Hospital outpatient labs typically bill around $180.00 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 or Labcorp) | $61.99 | $67.99 | Includes the one $6 lab processing fee, charged once per order |
| Quest Health (Quest Diagnostics' own site) | $89.00 | $89.00 | Aldosterone with renin at both · list price checked Sep 12, 2026 |
| Labcorp OnDemand (Labcorp's own site) | $139.00 | $139.00 | list price checked Sep 12, 2026 |
| Hospital outpatient lab, self-pay (typical) | $180.00 | $180.00 | Reference figure; hospital charges vary widely by facility and are often higher |
24% less than the lower lab-direct list price, for the same draw at the same lab. Lab test codes: Quest test code 17181 · Labcorp test no. 004354. 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
Medically reviewed by Youmna DiStefano, MD · Last reviewed September 2026
TestWell Price
$61.99
+ $6 lab processing fee at checkout
No insurance needed · HIPAA compliant
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Aldosterone
$61.99