Hormone Panel Updated Apr 17, 2026

Androstenedione

Androstenedione is a steroid hormone precursor measured in blood. It reflects how much of this adrenal and gonadal hormone is circulating at the time of the Androstenedione test. On an Androstenedione on a blood test or lab report, the result is read against the Androstenedione normal range to help describe whether the value is typical, high Androstenedione, or low Androstenedione.

What Is Androstenedione?

Androstenedione is a steroid hormone precursor found in blood. It is made mainly in the adrenal glands and gonads, and it helps show how much androgen-building material is circulating. On a lab report, the Androstenedione test result is usually read as a concentration in blood, not as a count of cells or proteins. When people look up Androstenedione on a blood test, they are usually asking what this hormone level means in the context of the Androstenedione normal range.

Why Is Androstenedione Tested?

Androstenedione is measured in Hormones panels and in broader endocrine workups, often alongside other steroid hormones. An Androstenedione test may be ordered when a lab report needs a clearer picture of androgen-related hormone production and balance. It is not part of a CBC, CMP, lipid panel, or thyroid panel, but it is often reviewed with other hormone markers to place the Androstenedione test result in context. In routine lab tracking, Androstenedione helps describe overall hormone output rather than red cell or organ chemistry patterns.

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Androstenedione Normal Range

Group Range Unit
Adult Male 50–250 ng/dL
Adult Female 30–200 ng/dL

Reference ranges may vary by laboratory and individual factors.

What Does High Androstenedione Mean?

High Androstenedione means the measured hormone level is above the expected Androstenedione reference range for the reporting lab. On an Androstenedione on a lab report, a high Androstenedione result can reflect increased hormone production or less breakdown of the hormone precursor. In many US labs, values above about 200 ng/dL in adult females or above about 250 ng/dL in adult males are often flagged, but the exact cutoff depends on the method used. A high Androstenedione test result is best read with the lab’s unit and reference interval, since different assays can report different numbers.

Associated factors

Natural hormone variation — Androstenedione can run higher during periods of increased adrenal or gonadal steroid output.
Physical stress or intense exercise — short-term stress signals can shift steroid hormone production upward.
Certain medications — some hormone-based medicines can raise the measured Androstenedione test result.
Pregnancy-related hormone shifts — pregnancy changes steroid production and can alter Androstenedione levels.
Adrenal stimulation — increased adrenal activity can increase Androstenedione production.
Ovarian hormone production — changes in gonadal steroid output can contribute to high Androstenedione.
Age and sex variation — reference ranges differ by group, so the same value may read differently across adults.
Laboratory method differences — immunoassay and mass spectrometry methods can give different Androstenedione results.
Timing of collection — Androstenedione can vary across the day, so time of draw can affect the result.

What Does Low Androstenedione Mean?

Low Androstenedione means the measured hormone level is below the expected Androstenedione reference range for that lab. On an Androstenedione on a blood test, a low Androstenedione result can reflect reduced hormone production or a lower circulating precursor level. Some labs consider values below about 30 ng/dL low in adult females or below about 50 ng/dL low in adult males, but the lab’s own range is the key reference. A low Androstenedione test result is interpreted with the full hormone panel, since single values can move with normal variation.

Associated factors

Reduced adrenal steroid output — lower adrenal hormone production can reduce Androstenedione.
Reduced gonadal hormone output — lower gonadal steroid production can contribute to low Androstenedione.
Certain medications — hormone-blocking or steroid-suppressing medicines can lower the Androstenedione test result.
Recent hormone treatment changes — starting or stopping hormone medicines can shift Androstenedione levels.
Poor nutritional intake — lower substrate availability can affect steroid hormone synthesis.
Age-related variation — some adults have lower Androstenedione as hormone output changes over time.
Blood sample timing — a draw taken at a different time of day can show a lower Androstenedione result.
Laboratory method differences — one assay may read lower than another for the same sample.
Natural sex-based reference differences — a value that looks low in one reference group may be normal in another.

How Androstenedione Relates to Other Values

Androstenedione is often read with other hormone markers rather than by itself. In a Hormones panel, values like testosterone, DHEA-S, estradiol, and LH can help show whether the Androstenedione test result fits a broader pattern of steroid hormone production. If the same lab report also includes FSH, SHBG, or 17-hydroxyprogesterone, the combination can help describe how precursor hormones and binding proteins relate to one another. Unlike CBC markers such as hematocrit (Hct), red blood cell count (RBC), and mean corpuscular volume (MCV), Androstenedione reflects hormone chemistry, not red cell size or count.

What Factors Affect Androstenedione Levels?

Age and sex are major sources of variation in Androstenedione, so the Androstenedione normal range is not identical for every adult. Time of day can also matter because steroid hormones may shift across the day. Hydration status can change how concentrated the blood sample appears, which can slightly affect the reported Androstenedione on a lab report. Exercise, stress, pregnancy, and some medications can all move the Androstenedione test result up or down. Different lab methods and units, such as ng/dL versus nmol/L, can make the same Androstenedione value look different across reports.

How It Is Tested

Androstenedione is measured from a blood draw, usually from a vein in the arm. The lab measures the amount of the hormone in the sample and reports the Androstenedione test result in units such as ng/dL or nmol/L, depending on the lab. On an Androstenedione on a blood test, the result is then compared with the lab’s reference interval.

How to Prepare

No fasting is usually required for an Androstenedione test, unless the lab gives different instructions. Because hormone levels can vary with timing, the collection time may matter for the final Androstenedione test result.

Frequently Asked Questions

What is the normal range for Androstenedione?
The Androstenedione normal range depends on the lab method and the units used on the report. A commonly cited adult range is about 50 to 250 ng/dL for men and about 30 to 200 ng/dL for women. The reference interval printed on the Androstenedione on a lab report is the best match for that specific test.
What does Androstenedione stand for?
Androstenedione does not stand for a longer phrase in the way some lab abbreviations do; it is the full name of the hormone. On an Androstenedione test, the result shows the amount of this steroid precursor in blood. The abbreviation and the full name are often used together on a lab report for clarity.
What does a high Androstenedione mean on a lab report?
High Androstenedione means the value is above the lab’s reference range. It usually reflects increased steroid hormone production or a sample result that is outside the expected Androstenedione normal range. The exact meaning depends on the unit, method, and the rest of the hormone panel.
What does a low Androstenedione mean on a lab report?
Low Androstenedione means the result is below the lab’s reference range. It can reflect reduced steroid hormone production, a medication effect, or normal variation in how the Androstenedione test is performed. The lab’s own range is the key comparison point.
Can exercise affect Androstenedione?
Exercise can affect Androstenedione because physical stress can shift steroid hormone output. A single Androstenedione test result may vary more if the blood draw happens after intense activity. Small changes are common, so the timing of exercise can matter on an Androstenedione on a blood test.
What is the difference between Androstenedione and testosterone?
Androstenedione is a precursor hormone, while testosterone is a more downstream androgen. On a lab report, Androstenedione helps show how much precursor is available before conversion into other hormones. Testosterone and Androstenedione are often reviewed together because they give different parts of the same hormone picture.
What unit is Androstenedione measured in?
Androstenedione is commonly reported in ng/dL or nmol/L, depending on the laboratory. The unit matters because the same Androstenedione test result can look very different after conversion. The reference range on the report should use the same unit as the result.
How much can Androstenedione change between tests?
Androstenedione can change modestly between tests because of time of day, stress, exercise, hydration, and lab method differences. A small shift does not always mean the underlying hormone pattern changed. Larger changes are more likely to stand out against the Androstenedione normal range.
Is Androstenedione different for men and women?
Yes, Androstenedione reference ranges are usually different for adult men and adult women. The same Androstenedione test result may be normal in one group and outside range in another. That is why the report’s sex-specific reference interval matters.
Why is Androstenedione tested in a Hormones panel?
Androstenedione is tested in a Hormones panel to help describe steroid hormone production in a broader context. On an Androstenedione on a lab report, it is often paired with other hormone markers to show how precursor and downstream hormones relate. This makes the Androstenedione test more useful than viewing the value alone.

Disclaimer

This content is for informational and educational purposes only. It is not intended as medical advice, diagnosis, or treatment recommendation. Reference ranges may vary by laboratory. Always discuss your results with a qualified healthcare professional.

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