metanephrine

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metanephrine

 [met″ah-nef´rin]
a urinary metabolite of epinephrine.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

met·a·neph·rine

(met-ă-nef'rin),
A catabolite of epinephrine found in the serum, urine and in some tissues, resulting from the action of catechol-O-methyltransferase on epinephrine; has no sympathomimetic actions; 3-O-methylepinephrine.
Farlex Partner Medical Dictionary © Farlex 2012

metanephrine

Any exogenous or endogenous catecholamine metabolite excreted in the urine (normal adults, 0.03–0.69 mmol/mol creatinine). Metanephrines are elevated in neuroblastoma, pheochomocytoma, metastases, stress and sepsis.
 
False positive elevation
High dietary intake of bananas, or therapy with chlopromazine, corticosteroids, l-dopa, dopamine, guanethidine, hydralazine, imipramine, nalidixic acids, phenobarbital, phenylephrine, or tetracycline.
 
False negative reduction
Clonidine, guanethidine, propranolol, reserpine.
 
Ref range
24–288 µg/24 hours; US, 0.05–1.2 mg/24 hours.
 
Specimen
24-hour urine.
 
Method
HPLC.
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.

metanephrine

Methoxyepinephrine Lab medicine Any exogenous or endogenous catecholamine metabolite excreted in the urine; metnephrines ↑ in neuroblastoma, pheochomocytoma, metastases, stress, sepsis
McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.

met·a·neph·rine

(met'ă-nef'rin)
A metabolite of epinephrine, excreted in the urine and found in some tissues.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

met·a·neph·rine

(met'ă-nef'rin)
A catabolite of epinephrine found in the serum, urine, and some tissue types, due to action of catechol-O-methyltransferase on epinephrine.
Medical Dictionary for the Dental Professions © Farlex 2012