Download Interprг©tation Des Catг©cholamines Urinaires Pdf May 2026

The measurement of urinary catecholamines (epinephrine, norepinephrine, and dopamine) is essential for diagnosing and monitoring several conditions:

Rare tumors outside the adrenal glands that secrete similar hormones. 2. Interpretation of Results

This guide outlines the clinical interpretation, collection procedures, and reference standards for urinary catecholamine testing, primarily used to diagnose neuroendocrine tumors.

Primarily used as a marker for neuroblastoma in children, often analyzed alongside VMA and HVA. Adult Reference Ranges (Approximate): Epinephrine: < 18.3 µg/24h or < 30 µg/24h Norepinephrine: < 84.6 µg/24h or < 60 µg/24h Dopamine: < 459.6 µg/24h or < 600 µg/24h 3. 24-Hour Collection Protocol

Interpretation relies on comparing 24-hour excretion levels against established reference ranges.

A typically benign adrenal gland tumor in adults that causes excessive hormone production.

A result three times higher than the upper reference limit strongly indicates a neuroendocrine tumor. Minor increases (less than double) may stem from stress, drugs, or collection errors.