Methodology
Liquid Chromatography/Tandem Mass Spectrometry (LC/MS/MS)
Synonyms
Normetanephrine
Specimen Type
Plasma
Performing Lab
Quest Diagnostics San Juan Capistrano
Epic ID
LAB01355
Lab Test Days
Sunday-Friday
Standard TAT
2-3 Days
Collection Information
Specimen Required
3-5 mL Blood
Container Type
Lavender (EDTA)
Collection Instructions
Patient should avoid alcohol, coffee, tea, tobacco, and strenuous exercise prior to collection. Overnight fasting is preferred. Patients should be relaxed in either a supine or upright position before blood is drawn. Draw specimen in a pre-chilled EDTA (lavender-top) tube. The whole blood sample should be kept on wet ice until brought to the lab.
Processing Information - Lab Use Only
Transport Temperature
Refrigerate-OK/Frozen-OK
Specimen Stability
Room Temp: 4 Hours; Refrigerated: 14 Days; Frozen: 14 Days
Rejection Criteria
Heparinized plasma; Serum; CSF; Urine
Test Volume Required
2.5 mL Plasma
Minimum Test Volume
1.5 mL Plasma
Processing Instructions
The whole blood sample should be kept on wet ice until centrifuge (preferably at 4 degrees C) to separate the plasma within 2 hours of collection. After centrifugation, the plasma should be transferred to a plastic, leak-proof vial and immediately refrigerated.
Included Tests
Metanephrine, Normetanephrine, and Total Metanephrine.
CPT Codes
83835
Revised
12-01-19
Initials
SL