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METANEPHRINES,FRACT,FREE,PLASMA

Test Number:
  • 0050184
Test Alias:
Preferred Specimen:
  • Plasma
Container Type:
  • EDTA/Lavender Top
Alternative Specimen:
Volume:
  • 3 mL
Collection Instructions:
  • PATIENT PREPARATION: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. COLLECTION INSTRUCTIONS: Draw specimen in a pre-chilled EDTA lavender-top Vacutainer®. The whole blood sample should be kept on wet ice until centrifuged (preferably at 4° C) to separate the plasma within 2 hours of venipuncture. After centrifugation, the plasma should be transferred to a plastic, leak-proof vial and immediately refrigerated.
Transport Temperature:
  • Refrigerated (cold packs)
Specimen Stability:
  • Room temperature: 4 hours
  • Refrigerated: 14 days
  • Frozen: 14 days
Methodology:
  • Liquid Chromatography/Tandem Mass Spectrometry (LC/MS/MS)
CPT Code:
  • 83835
Reject Criteria:
  • Heparinized plasma • Serum • CSF • Urine
Reference Range:
Report Available:
  • 6 days

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