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Test Compendium

5218: METANEPHRINES, FRAC., PL. FREE

Test Code

  • 5218

Test Synonym

  • Metanephrines, Fractionated, LC/MS; Metanephrine; Normetanephrine; Plasma Metanephrines

Volume

  • 1 mL

Minimum Volume

  • 0.4 mL

Specimen Requirements

  • Plasma

Container

  • Lavender Top Tube

Storage

  • Refrigerated

CPT Codes

  • 83835
    *The CPT codes provided are based on AMA guidelines and are provided for informational purposes only. CPT coding is the responsibility of the billing entity. Please direct any questions regarding the CPT coding to the payer being billed.

Special Instructions

  • 1.0 mL EDTA PLASMA

Additional Information

  • Draw blood in chilled lavender-top (EDTA) tube. Invert to mix with preservatives. Centrifuge and transfer the plasma to a labeled plastic transport tube. (NOTE: The whole blood sample may be kept refrigerated at 4(degrees)C for up to 2 hours before centrifugation, if necessary. Patient should be fasting overnight (water and non- caffeinated 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

Specimen Stability

  • AMBIENT: 2 days REFRIGERATED: 14 days FROZEN: 14 days