Search For Additional Tests
METANEPHRINES, FRACTIONATED, PLASMA
Number 1238
CPT Code 83835
Alias METANEPHRINE, NORMETANEPHRINE, PLASMA
Specimen Container Lavender Top
Specimen Type Plasma ETDA
Turn Around Time
Days Performed
Reference Range Contact Laboratory
Alternate Specimen
Volume 1 mL Plasma
Stability Ambient N/A
Stability Refrigerated Preferred
Stability Frozen N/A
Patient Preparation
Patient should be fasting overnight (water and noncaffeinated soft drinks are permissible). The patient should be in a supine position for at least 15 minutes before and during sample collection. An indwelling venous catheter (normal saline to keep the line patent) is recommended, since the acute effects of the stress of venipuncture may increase metanephrine. It is preferable, but not essential, to draw the sample without a tourniquet.
Methodology
Liquid chromatography/tandem mass spectrometry (LC/MS-MS)
Limitations
Rejection Criteria
Specimen not drawn in correct tube; heparinized plasma received
Additional Instructions
Performing Laboratory Reference Laboratory
TagsMETANEPHRINES, FRACTIONATED, PLASMA