Metanephrines, Fractionated, Quantitative, 24-Hour Urine
Fasting Required: No

Specimen: Urine

Special Instructions: Foods such as coffee (including decaf), tea, chocolate, vanilla, bananas, oranges and other citrus fruits should be avoided for several days prior to the test and during collection. There are also many medications that can potentially affect test results. Talk to your doctor about any prescriptions and over-the-counter drugs and supplements that you are taking. Wherever possible, those that are known to interfere should be discontinued prior to and during sample collection. Emotional and physical stresses and vigorous exercise should be minimized prior to and during test collection as they can increase catecholamine secretion.

Results: 5 - 7 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: Metanephrine, Normetanephrine, Total Metanephrines

Methodology: Liquid Chromatomagraphy 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.