Metanephrine, Fractionated, Quantitative (METANEPH UR)
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| Synonyms:
| None listed |
| Specimen: | Urine; 24 hour urine collected in a 24 hour collection container or any chemically clean leak proof container.
Instruct patient on proper 24 hour urine collection procedure.
No caffeine before or during collection. Monoamine oxidase inhibitors should be discontinued at least one week prior to beginning collection.
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| Volume: | Entire collection or 100 mL aliquot |
| Minimum Volume: | |
| Collection: | Record total volume on request form when sending an aliquot. HCl is an acceptable preservative if required for a concurrently collected assay.
Refrigerate at 2-8°.C |
| Rejection Criteria: | Improper labeling. |
| Reference Range: | See report. |
| Methodology: | Liquid chromatography/tandem mass spectrometry (LC/MS-MS). |
| Test Use: | Evaluate the presence of abnormal catecholamine production, diagnose pheochromocytoma, neuroblastoma, and ganglioneuroblastoma |
| Additional Information: | No caffeine before or during collection. Discontinue monamine oxidase inhibitors 1 week prior to starting collection. Metanephine has become the first choice as an initial test for pheochromocytoma |
| Testing Includes: | Metanephrine and normetanephrine.
Specimen sent to LabCorp. LabCorp test # 004234. |
| Testing Facility: | LabCorp |