ACTH Stimulation Test For Androsteindione 3 samples Test in UAE

ACTH Stimulation Test for Androstenedione (3 Samples) in Dubai and across the UAE to evaluate adrenal steroid production. This specialized hormonal test assesses how your adrenal glands respond to synthetic ACTH by measuring androstenedione levels before and after stimulation. It helps diagnose adrenal disorders such as congenital adrenal hyperplasia (CAH), adrenal tumors, or androgen excess. Results available within 10–12 days.

Overview

The ACTH Stimulation Test for Androstenedione (3 Samples) evaluates adrenal gland function by measuring androstenedione — a key precursor hormone in testosterone and estrogen synthesis — at baseline and after administration of synthetic ACTH (cosyntropin). This test is particularly useful in diagnosing 21-hydroxylase deficiency and other forms of congenital adrenal hyperplasia (CAH), especially when standard 17-OH progesterone testing is inconclusive. The test involves collecting three blood samples over a short period to capture dynamic hormonal response. Results are typically available within 10–12 business days.

Why You Need This Test

• Diagnose congenital adrenal hyperplasia (CAH), especially non-classic or atypical forms.
• Evaluate androgen excess in women with hirsutism, acne, or irregular periods.
• Assess suspected adrenal hyperplasia or adrenal tumors.
• Differentiate between ovarian vs. adrenal sources of excess androgens.
• Investigate precocious puberty in children.
• Monitor patients with known steroid enzyme deficiencies.
• Available with comprehensive lab coordination in Dubai, Abu Dhabi, Sharjah, and all Emirates.

Symptoms & Risk Factors

Common Symptoms

• In women: hirsutism (excess facial/body hair), acne, infertility, irregular periods
• In children: early puberty, rapid growth, advanced bone age
• In newborns (classic CAH): ambiguous genitalia, salt-wasting crisis
• General signs: fatigue, low blood sugar, poor stress response
• Elevated androgens without clear cause

Risk Factors

• Family history of congenital adrenal hyperplasia or adrenal disorders
• Polygenic background of PCOS with atypical presentation
• Unexplained hyperandrogenism despite normal 17-OHP levels
• Prenatal dexamethasone exposure (in some CAH cases)
• Known carrier status for CAH-related gene mutations
• Adrenal mass detected on imaging

How the Test Works

The ACTH stimulation test evaluates how well your adrenal glands produce steroid hormones like androstenedione in response to adrenocorticotropic hormone (ACTH). Synthetic ACTH (cosyntropin) is injected, and blood samples are drawn before and after to measure hormonal changes.

• Step 1 — Baseline blood draw: first sample collected to measure resting androstenedione and cortisol.
• Step 2 — ACTH injection: intramuscular or IV injection of cosyntropin (synthetic ACTH).
• Step 3 — Post-stimulation samples: two additional blood draws at 30 and 60 minutes after injection.
• Step 4 — Lab analysis: all three samples tested for androstenedione, often with 17-OH progesterone and cortisol.
• Step 5 — Results: comprehensive report delivered securely within 10–12 business days.

This test is critical for detecting subtle adrenal enzyme defects missed by routine screening.

Sample Type

• We take: Three blood samples (each 2–3 mL)
• Tubes: serum separator tubes (SST / gold top) or red-top tubes
• Timing: Sample 1 (baseline), Sample 2 (30 min post-ACTH), Sample 3 (60 min post-ACTH)
• Collection site: performed at a certified clinic or hospital setting (not at home)
• Fasting: not required, but morning testing preferred
• Note: strict timing is essential — delays affect result accuracy

Risks & Safety

• Minimal risk — mild pain or bruising at injection or blood draw site.
• ACTH (cosyntropin) is safe and well-tolerated; allergic reactions are rare.
• No serious side effects expected in most patients.
• Safe for adults and children under medical supervision.
• Monitoring recommended for patients with adrenal insufficiency.

Result Interpretation

Normal Response

• Baseline androstenedione: 0.7–3.1 ng/mL (adults, lab-dependent)
• Post-ACTH rise: less than 2.5-fold increase
• Normal adrenal response with controlled steroid synthesis

Abnormal Elevation

• May indicate:
  • 21-Hydroxylase Deficiency (CAH) – most common cause
  • 11-Beta Hydroxylase Deficiency – rarer form of CAH
  • Adrenal hyperplasia or adenoma
  • Androgen-secreting adrenal tumor
• A marked increase (>3-fold) in androstenedione post-ACTH suggests impaired enzyme activity.

Blunted Response

• May suggest:
  • Primary adrenal insufficiency (Addison’s disease)
  • Long-term steroid suppression
  • Pituitary dysfunction affecting ACTH production

Consequences if Untreated

• In children: growth abnormalities, early puberty, infertility
• In women: infertility, menstrual irregularities, worsening hirsutism
• In classic CAH: life-threatening salt-wasting crisis in newborns
• Chronic androgen excess: insulin resistance, metabolic syndrome
• Missed diagnosis: delays in treatment and genetic counseling

Factors Affecting Test Results

• Glucocorticoid medications: dexamethasone, prednisone — suppress adrenal response
• Timing errors: inaccurate sample collection times reduce reliability
• Pregnancy: naturally increases androstenedione and steroid precursors
• Oral contraceptives: may suppress androgen levels
• Stress or acute illness: can alter baseline hormone levels
• Genetic variants: affect enzyme activity and metabolite accumulation

FAQs

Limitations

• Requires strict adherence to timing — delays invalidate results.
• Must be interpreted alongside 17-OH progesterone, cortisol, and clinical findings.
• Not useful for diagnosing ovarian causes of hyperandrogenism alone.
• False negatives possible if patient is on steroid suppression therapy.
• Available only at specialized endocrinology centers in the UAE.

Book Your ACTH Stimulation Test for Androstenedione Today

Unexplained androgen excess or suspected adrenal disorder? Get a definitive evaluation with gold-standard hormonal testing.

• 3-Sample ACTH Stimulation Protocol (Gold Standard for CAH)
• Precise Timing & Professional Administration
• Results in 10–12 Days
• Price: AED 700
• ✅ Endocrinologist-Recommended | CLIA-Grade Labs
• 💉 ACTH Injection Included | Certified Medical Staff
• 🔒 Confidential Reporting | PDF & Hard Copy Options