Metanephrines, Pheochromocytoma Evaluation
Test Code: 004044
Performing Lab: LabCorp
CPT Code: 83835 001 82570 001
Synonym
Metanephrines, Random Urine; Pheochromocytoma Evaluation
Specimen Type
Urine (first morning)
Specimen Container
Random urine transport tube with no preservative or 6N HCl.
Volume
10 mL
Minimum Volume
2.5 mL(NOTE: This volume does NOT allow for repeat testing.)
Specimen Handling
Collect urine and transfer to a random urine transport tube.
Patient Prep
Medication and dietary monitoring. A number of drugs act through catecholamine mechanisms and must be discontinued 72 hours before and during collection. Bananas, pineapple, and plums are contraindicated.
Temperature
Room Temperature
Methodology
Metanephrines: liquid chromatography/tandem mass spectrometry (LC/MS-MS); creatinine: alkaline picric acid
Stability
Room Temperature: 7 days
Refrigerated: 14 days
Frozen: 14 days
Refrigerated: 14 days
Frozen: 14 days
TAT
3 - 7 days
| Result Code | Result Name | LOINC |
|---|---|---|
| 070016 | Creatinine, Random U | 2161-8 |
| 004240 | Normetanephrine, Ur | 21422-1 |
| 004239 | Metanephrine, Ur | 21019-5 |
| 070028 | Metaneph/Creat Ratio | 13771-1 |
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