---
title: Aldosterone Test
type: biomarker
url: "https://www.test-well.com/biomarkers/aldosterone"
also_known_as:
  - aldosterone
category: Hormones
units:
  - ng/dL
order_price_usd: 61.99
order_item: Aldosterone
order_url: "https://www.test-well.com/tests/aldosterone-test"
reviewed_at: 2026-09-05
---

# Aldosterone

> Aldosterone is measured with a standard blood draw; no fasting is needed. A typical reference range is 0.000 – 30.0 ng/dL. At TestWell it's $61.99 all-in as Aldosterone, results in 3–5 business days, drawn at Quest or Labcorp. An out-of-range result is a prompt to look closer, not a diagnosis.

Also known as: aldosterone.

## Key facts

| Fact | Value |
| --- | --- |
| Units | ng/dL |
| Sample | Blood draw |
| Fasting | Not required |
| Results | 3–5 business days |
| Price | $61.99 |
| Labs | Quest or Labcorp |

## What does Aldosterone measure?

An adrenal hormone that controls sodium, potassium, and blood pressure.

## What is the normal range for Aldosterone?

| Population | Reference range |
| --- | --- |
| age 18+, upright posture | 0.000 – 30.0 ng/dL |

Reference intervals differ slightly between labs; the range printed on your report is the one to interpret against. Ranges are usually set so 95% of healthy people fall inside them.

## What does a high Aldosterone mean?

Can reflect primary aldosteronism, low sodium intake, or diuretic use. A treatable cause of high blood pressure.

## How do you get tested for Aldosterone?

| Order | Type | Price | Includes |
| --- | --- | --- | --- |
| [Aldosterone](https://www.test-well.com/tests/aldosterone-test) | Single test | $61.99 | This marker |

## Quest vs Labcorp vs BioReference

| Lab | Available | Price | Notes |
| --- | --- | --- | --- |
| Quest Diagnostics | Yes | $61.99 | Choose Quest at checkout; walk-in patient service centers in every state TestWell serves outside NY and NJ. |
| Labcorp | Yes | $78.99 | Choose Labcorp at checkout; walk-in patient service centers in every state TestWell serves outside NY and NJ. |
| BioReference (NY & NJ) | No | — | Not available in NY/NJ for this test. |

- [What a high Aldosterone means (causes, symptoms, next steps)](https://www.test-well.com/biomarkers/aldosterone/high)
- [What a low Aldosterone means (causes, symptoms, next steps)](https://www.test-well.com/biomarkers/aldosterone/low)

## Common questions about Aldosterone

### Do I need a doctor's order to test my aldosterone?

No. TestWell's licensed physician network reviews and approves your order — usually within minutes. You can place an order online without an in-person visit or a referral from your own doctor.

### How long does it take to get Aldosterone results?

Most Aldosterone results are available in 1–3 business days after your specimen arrives at the lab. You'll get an email the moment your results are ready, with everything viewable in your TestWell portal.

### How much does a Aldosterone test cost?

Our Aldosterone starts at $61.99. That's the all-in price — no copays, no insurance hoops, no surprise bills. HSA and FSA cards are accepted.

### Do I need to fast before my Aldosterone test?

Fasting is not required for the Aldosterone test. You can have your blood drawn any time of day.

### Which lab will process my Aldosterone test?

Your test will be processed by Quest Diagnostics, Labcorp, or BioReference depending on which is closest to you and which lab carries the test. All three are CLIA-certified and trusted by hospitals nationwide. You'll choose your lab during checkout from 4,000+ locations.

## Sources

- [Mayo Clinic Labs](https://www.mayocliniclabs.com/test-catalog/overview/8369)
- [MedlinePlus (NIH) — Aldosterone Test](https://medlineplus.gov/lab-tests/aldosterone-test/)

## Related biomarkers

- [Total Testosterone](https://www.test-well.com/biomarkers/total-testosterone)
- [Free Testosterone](https://www.test-well.com/biomarkers/free-testosterone)
- [SHBG](https://www.test-well.com/biomarkers/shbg)
- [Estradiol](https://www.test-well.com/biomarkers/estradiol)
- [Cortisol AM](https://www.test-well.com/biomarkers/cortisol-am)
- [DHEA-S](https://www.test-well.com/biomarkers/dhea-s)

- [Reference range lookup tool](https://www.test-well.com/tools/reference-range-lookup)
- [Lab unit converter](https://www.test-well.com/tools/lab-unit-converter)
- [All biomarkers](https://www.test-well.com/biomarkers)

---

Medically reviewed by Youmna DiStefano, MD (Medical Reviewer, TestWell); last reviewed 2026-09-05. Review policy: https://www.test-well.com/reviewers/youmna-distefano-md

Canonical page: https://www.test-well.com/biomarkers/aldosterone
Machine-readable catalog: https://www.test-well.com/api/catalog.json · MCP server: https://www.test-well.com/mcp · Overview for agents: https://www.test-well.com/llms.txt

Prices are cash-pay, in USD, and include physician authorization; every order adds one flat $6 lab processing fee. Educational content is not a diagnosis — discuss results with a clinician.