17-Hydroxy Progesterone Blood Test – Accurate Hormone Level Testing for Adrenal Health

The 17-Hydroxy Progesterone (17-OHP) Test from Lab Tests Dubai is a critical diagnostic blood testthat measures levels of 17-hydroxy progesterone, a key steroid hormone precursor in the cortisol and androgen synthesis pathway.

Produced primarily by the adrenal glands, and in smaller amounts by the ovaries and testes, 17-OHP is essential for:

• Cortisol production (stress hormone)
• Androgen synthesis (including testosterone)

Abnormally high levels are a hallmark of Congenital Adrenal Hyperplasia (CAH)—a genetic disorderaffecting 1 in 10,000–15,000 births—especially the 21-hydroxylase deficiency form.

Using high-sensitivity enzyme-immunoassay (EIA) technology, this serum-based test delivers precise results within 3 days, making it vital for:

• Diagnosing CAH in newborns and children
• Evaluating hirsutism, acne, and infertility in women
• Differentiating PCOS from adrenal hyperplasia
• Monitoring steroid replacement therapy

Available with home blood collection, Lab Tests Dubai ensures fast, accurate, and stress-free testing—so you can detect hormonal imbalances early and act fast.

Why You Need This Test

If you or your child are showing signs of abnormal hormone production, this test could prevent lifelong complications.

You need the 17-OHP Test if:

• Your newborn has ambiguous genitalia (especially in genetic females)
• Your child shows early puberty signs (pubic hair, rapid growth before age 8)
• You’re a woman with PCOS-like symptoms (irregular periods, hirsutism, acne)
• You’re being evaluated for adrenal hyperplasia or tumor
• You have infertility or anovulation with elevated androgens
• You’re on steroid therapy and need monitoring

This test helps distinguish:

• Benign PCOS (mild 17-OHP rise)
• Classic CAH (very high 17-OHP)
• Non-classic CAH (moderate elevation, often missed)

Early diagnosis = lifesaving treatment for infants, better fertility outcomes for adults.

Symptoms That Indicate This Test

Consider the 17-OHP Test if you or your child experience:

• For Newborns:

• Ambiguous genitalia (in genetic females)

• Poor feeding, vomiting, dehydration (salt-wasting crisis)

• Low sodium, high potassium (adrenal crisis)

• For Children:

• Early pubic or axillary hair

• Rapid height growth with short adult stature

• Acne or body odor in young children

• For Women:

• Irregular or absent periods

• Excess facial/body hair (hirsutism)

• Severe acne or male-pattern hair loss

• Infertility or recurrent miscarriage

• For Men (rare):

• Early puberty

• Infertility with hormonal imbalance

These signs may point to excess androgen production—and this test identifies whether it’s adrenal in origin.

Natural Production: How 17-OHP Regulates Hormone Balance

Cholesterol → Pregnenolone → 17-OH Pregnenolone → 17-Hydroxy Progesterone

↓
21-Hydroxylase Enzyme
↓
11-Deoxycortisol → Cortisol
↓
Androstenedione → Testosterone

In 21-hydroxylase deficiency (95% of CAH cases):

• The enzyme is defective or absent
• 17-OHP builds up (can be 10–100x normal)
• Cortisol and aldosterone are low
• Androgens are overproduced

This leads to:

• Salt-wasting crisis (life-threatening in newborns)
• Virilization (in females)
• Precocious puberty

This test is the gold standard for diagnosing CAH.

What Happens If Untreated? Risks of Ignoring High 17-OHP

Ignoring abnormal 17-OHP levels can lead to:

• Adrenal Crisis in Newborns – vomiting, dehydration, shock, death within days
• Ambiguous Genitalia in Girls – requiring surgical correction
• Growth & Fertility Issues – early bone maturation → short stature
• Infertility & Menstrual Dysfunction – due to chronic anovulation
• Metabolic & Cardiovascular Risks – from long-term androgen excess

The good news? CAH is treatable with:

• Hydrocortisone (replaces cortisol)
• Fludrocortisone (for salt-wasting)
• Monitoring and dose adjustment during stress or illness

Early testing = lifesaving intervention.

How to Prepare for the Test

To ensure accurate results:

• No fasting required
• Avoid steroids or hormonal medications unless instructed—inform your doctor
• For women: Test on Day 2–4 of menstrual cycle (unless otherwise directed)
• For infants: Morning sample preferred (circadian rhythm)
• Avoid stress or illness before testing (can elevate levels)

A serum blood sample is collected via standard draw—available at our labs or via home collection.

Test Overview: High-Sensitivity Enzyme-Immunoassay Method

Interpretation

• Very high + symptoms → Confirm with genetic testing

Results are reported with age- and gender-specific reference ranges.