Metanephrines, Fractionated, LC/MS/MS, Random Urine
Fasting Required: No

Specimen: Urine

Patient Preparation: It is preferable for the patient to be off medications for three days prior to collection. Patient should avoid tobacco, tea, coffee, for three days prior to specimen collection. Common anti-hypertensives (diuretics, ACE inhibitors, calcium channel blockers, alpha and beta blockers) cause minimal or no interference. Medications which are alpha agonists (Aldomet), alpha blockers (Dibenzyline) should be avoided 18-24 hours prior to specimen collection.

Results: 7 - 10 business days

Description: Metanephrines are the inactive metabolites of the catecholamines epinephrine (adrenaline) and norepinephrine. The primary catecholamines are dopamine, epinephrine (adrenaline), and norepinephrine. These hormones are released into the bloodstream in response to physical or emotional stress. Some symptoms of catecholamine release include headaches, palpitations, sweating, nausea, anxiety, and tingling in the extremities.

Includes: Metanephrines, Normetanephrines, Total Metanephrines, Creatinine

Methodology:Kinetic Alkaline Picrate • Liquid Chromatography/Tandem Mass Spectrometry (LC/MS/MS)

Note: Result turnaround times are an estimate and are not guaranteed. Our reference lab may need additional time due to weather, holidays, confirmation/repeat testing, or equipment maintenance.