Casandra
Casandra Test Code QD63974Version 1 (DRAFT)
Performing Lab
Lab Quest DiagnosticsLab Test ID 39626
Catecholamines, Fractionated and VMA, 24‑Hour Urine with Creatinine
Clinical Use
Order TestUse
Used to evaluate suspected pheochromocytoma/paraganglioma (PPGL) and neuroblastoma; measurement of fractionated catecholamines (dopamine, epinephrine, norepinephrine) and vanillylmandelic acid normalized to creatinine helps assess catecholamine‑secreting tumors.
Special Instructions
Not provided.
Limitations
Intermittent secretion of catecholamines by PPGLs may yield false negatives; physiologic stress or certain medications (e.g., acetaminophen, labetalol, sotalol) can elevate catecholamine levels; accuracy depends on proper specimen collection and preservation.
Test Details
Methodology
Other
Biomarkers
5 targets
Creatinine (urine)DopamineEpinephrineNorepinephrineVanillylmandelic Acid (VMA)
Result Turnaround Time
Not provided.
Related Documents
For more information, please review the documents below
Specimen Requirements
Specimen
Urine
Volume
Not provided
Minimum Volume
Not provided