The plasma free metadrenalines profile:
Sample type | Plasma |
Container | EDTA |
Precautions | Plasma must be separated from red blood cells within 2 hours of collection. Certain medications may cause false elevations of plasma metadrenalines (click here for full list). If clinically feasible, it is optimal to discontinue these medications at least 1 week before sample collection. |
Minimum volume | 250 µL |
Reference range |
Metadrenaline < 510 pmol/L Normetadrenaline < 1180 pmol/L 3-methoxytyramine < 180 pmol/L |
Turnaround time | 14 days |
Method | Liquid chromatography-tandem mass spectrometry |