Specimen Requirements

Title

METANEPHRINES, FRACTIONATED, URINE 24HR

Specimen Requirement

24 hour collection

Call lab for instructions

Methodology

Stability

Reference Range

By Report*

Turnaround

4-6 days Setup Mon, Wed, Fri

Clinical Use

Evaluate the presence of abnormal catecholamine production, diagnose pheochromocytoma, neuroblastoma and ganglioneuroblastoma. Slightly elevated concentrations of urinary metanephrines (900-1300 ug/24 hr) are usually associated with essential hypertension, intense physical activity, emotional and physical stress, drug interferences and improper specimen collection. Higher concentrations (greater than 1300 ug/24 hr) are suggestive of pheochromocytoma.

Test Code

24MW