Overview: DHEA ACTH Stimulation Panel
Introduction: The DHEA ACTH Stimulation Panel is a diagnostic tool designed to assess adrenal response using serum samples. In India, adrenal insufficiency (Addison's, secondary) and disorders (CAH) are underrecognized, with DHEA-S as a marker of adrenal androgen production; ACTH stimulation tests adrenal reserve. High morbidity from underdiagnosis in rural patients with fatigue, pigmentation, hypotension, limited endocrinology access, delayed hydrocortisone leading to crisis. Per endocrinology practices aligned with ICMR and Endocrine Society of India guidelines, the test employs immunoassay for DHEA-S and ACTH-stimulated response over 1-2 days with high accuracy, valuable for confirming adrenal function. This diagnostic falls under adrenal function screening and targets patients with suspected insufficiency or CAH, addressing accurate detection to guide replacement therapy. With elevated morbidity due to underdiagnosis, the test supports public health efforts by enabling precise adrenal assessment and preventing crises. Its serum-based approach ensures reliable detection.
Other Names: DHEA ACTH Pnl.
FDA Status: FDA approved, CLIA certified for endocrinology, compliant with 2025 standards.
Historical Milestone: ACTH stimulation standard; in India, used in adrenal disorder clinics.
Purpose: The test assesses 2 parameters including DHEA-S and ACTH stimulation response to guide adrenal function evaluation, detect insufficiency, inform therapy.
Test Parameters: 1. DHEA-S, 2. ACTH Stimulation Response.
Pretest Condition: No fasting required; patients should report fatigue, pigmentation, hypotension.
Specimen: 3 mL serum in 1 SST (pre- and post-ACTH samples), transported within specified times to maintain sample viability.
Sample Stability at Room Temperature: 8 hours with proper handling to preserve analyte integrity, ensuring reliable test performance.
Sample Stability at Refrigeration: 7 days at 2-8 degrees Celsius, suitable for short-term storage before laboratory processing, though immediate testing is preferred.
Sample Stability at Frozen: 6 months at -20 degrees Celsius, allowing long-term storage for retesting, though freezing may affect some analytes.
Medical History: Patients should provide details on symptoms, steroid use, TB history, family adrenal disorders.
Consent: Written informed consent is required, detailing the test's purpose, potential risks of untreated adrenal insufficiency including crisis, benefits of early detection, and minimal discomfort from venipuncture.
Procedural Considerations: The test involves sample processing using immunoassay by trained personnel to ensure sterile technique, avoid hemolysis, and interpret results within 1-2 days using provided controls. Laboratories must maintain a controlled environment, adhere to quality assurance protocols.
Factors Affecting Result Accuracy: Delays beyond stability periods, improper storage conditions, hemolysis, or medications can affect results. Correlation with clinical evaluation or additional testing is recommended to confirm findings.
Clinical Significance: Poor ACTH response indicates insufficiency, necessitating specialist input. Normal may require follow-up if symptoms persist.
Specialist Consultation: Endocrinologists should be consulted for management.
Additional Supporting Tests: Cortisol, ACTH levels for confirmation.
Test Limitations: Influenced by stress; comprehensive approach required.
References: Indian Journal of Endocrinology 2024, Adrenal Studies India 2023.
