Search For Additional Tests
METANEPHRINES, 24 HOUR URINE
Number 1135
CPT Code 83835
Alias METANEPHRINE, NORMETANEPHRINE
Specimen Container 24Hr Urine Container
Specimen Type 24Hr Urine without preservative
Turn Around Time
Days Performed
Reference Range Contact Laboratory
Alternate Specimen
Volume 25 mL Aliquot
Stability Ambient 14 Days
Stability Refrigerated 14 Days
Stability Frozen 14 Days
Patient Preparation
No caffeine before or during collection. Monamine oxidase inhibitors should be discontinued at least one week prior to beginning collection.
Methodology
Liquid chromatography/tandem mass spectrometry (LC/MS-MS)
Limitations
False-negative results occur (eg, interference by methylglucamine in x-ray contrast medium).3 False-positives can be caused by stress and drugs.
Rejection Criteria
Additional Instructions
Performing Laboratory Reference Laboratory
TagsMETANEPHRINES, FRACTIONATED, 24 HOUR URINE