Metanephrines, fractionated, quantitative, 24 hour urine

Alphabetical Test listing

Metanephrines, fractionated, quantitative, 24 hour urine-13491

  
Metanephrines, fractionated, quantitative, 24 hour urine
  
13491
  
LAB13491
  
METAUR
  
  • Metanephrine
  • Normetanephrine
  
  • Evaluate the presence of abnormal catecholamine production, may be elevated when VMA and catecholamines are within normal limits
  • Diagnose pheochromocytoma, neuroblastoma, and ganglioneuroblastoma.
  
  • No caffeine before or during collection
  • Monamine oxidase inhibitors should be discontinued at least one week prior to beginning collection

 

  
Urine, 24 hr
  
10 mL aliquot of a 24 hur urine collection
  
2.5 mL aliquot of a 24 hour urine collection
  
  
  1. Measure and record total 24-hour volume
  2. Mix well
  3. Transfer a 10mL aliquot to a Transfer vial/tube with cap - 12mL (LabCorp)

 

  

24 hr urine collection container with HCl

HCl is an acceptable preservative if required for a concurrently collected assay.

  

Ambient (preferred) - 14 days

Refrigerated - 14 days

Frozen - 14 days

  
LabCorp Burlington (004234): R-LC
  
Mo - Fr
  
3 - 6 days
  

Liquid chromatography/tandem mass spectrometry (LC/MS-MS)

  

Normetanephrine

 

Age

Male

Female

0 – 8 years

48 - 229

48 - 200

9 – 12 years

80 - 384

71 - 296

13 – 20 years

105 - 405

90 - 315

21 – 30 years

110 - 553

95 - 449

>30 years

156 - 729

131 - 612

 

 

 

Metanephrine

 

Age

Male

Female

0 – 8 years

30 - 150

32 - 123

9 – 12 years

54 - 209

44 - 161

13 – 17 years

56 - 236

44 - 161

>17 years

58 - 276

36 - 209

  
83835
  
Result 19050-4
  
04/10/2019
  
03/16/2021
  
03/17/2021