Metanephrines (plasma)
Metanephrines (metanephrine, normetanephrine, 3-MT) are products of catecholine metabolism. Clinical indication for requesting: ? phaeochromocytoma, adrenal incidentaloma, screening for phaeochromocytoma in conditions with genetic predisposition (MEN 2, von Hippel-Lindau syndrome, neurofibromatosis type 1). May be requested in cases where 24 hr urine collections are difficult.
| Tube | 04 (EP) - EDTA Plasma |
|---|---|
| ID | Tests&Tubes0214 |
| Additional Information | Please note, 24h urine metanephrines is the first line test. Requests for plasma metanephrines should be discussed with the Duty Biochemist (0113 39 26922 option 2). |
| Turn Around | Turnaround time stated by Newcastle: 2 weeks |
| Send to | Blood Sciences LGI (Test referred to: Newcastle Freeman Hospital.) |
| Contact | For further details please contact Leeds Pathology customer services: leedsth-tr.pathologycustomerservice@nhs.net. |
| Advice | Full information on all referred tests can be found on the referred tests information database, EQMS reference BSF2REC17003. |
| Collection Con | Ideally, collect from the patient after 30 min in the supine position. Sample must arrive in the lab within 30 min of collection. Instructions to lab: Centrifuge, separate and freeze plasma within 30 min of sample collection. Minimum volume: 1 mL plasma. |
| Sample REQ | Blood |
| Ref. Range Notes | Seated: NMN 0 - 1180 pmol/L; MN 0 - 510 pmol/L; 3MT 0 - 180 pmol/L. Supine: NMN < 730 pmol/L; MN < 450 pmol/L; 3MT < 180 pmol/L |
| Units | pmol/L |
| Telepath | LGI superset LMADP. SJUH superset JMADP. |
