Metanephrines, Plasma (Free)
Order Name
METANEPH P
Test Number: 3805327
Revision Date 02/16/2021
Test Number: 3805327
Revision Date 02/16/2021
Test Name | Methodology | LOINC Code |
---|---|---|
Metanephrine, Free
|
Quant Liquid Chromatography-Tandem Mass Spectrometry | 25474-8 |
Normetanephrine, Free
|
Quant Liquid Chromatography-Tandem Mass Spectrometry | 25489-6 |
Metanephrines Interpretation
|
48767-8 |
SPECIMEN REQUIREMENTS | ||||
---|---|---|---|---|
Specimen | Specimen Volume (min) | Specimen Type | Specimen Container | Transport Environment |
Preferred | 2 mL (1 mL) | Plasma | EDTA (Lavender Top) | Frozen |
Alternate 1 | 2 mL (1 mL) | Plasma | Dark Green No-Gel Heparin (Na or Li) | Frozen |
Instructions | Process Plasma Specimen to Frozen Aliquot ASAP. Separate the plasma within 1 hour of venipuncture. After centrifugation, 2mL(1mL) plasma should be transferred to a plastic, leak-proof Aliquot vial and frozen for immediately. Stability After separation from cells: Ambient: Unacceptable; Refrigerated: Unacceptable; Frozen: 1 month Unacceptable specimens: Plasma separator tubes. Body fluids other than EDTA or heparinized plasma. Non-frozen specimens. Grossly hemolyzed. Patient Preparation: Drugs and medications may affect results and should be discontinued for at least 72 hours prior to specimen collection, if possible. Collection of the specimen after the patient has rested for 15 minutes in a supine position is recommended. |
GENERAL INFORMATION | |
---|---|
Testing Schedule | Sun-Sat |
Expected TAT | 3-5 Days |
Notes | Many drugs/medications, including over-the-counter and herbal products, can interfere with test results. Testing for all potential interactions is not possible. If the patient is taking a drug not listed as an interferent, its potential effect on test results is unknown. If test results are inconsistent with clinical evidence, drug interference should be considered. If appropriate, the patient should discontinue the potential interferent for 48-72 hours and a new sample collected for retesting. |
CPT Code(s) | 83835 |
Lab Section | Reference Lab |