Skip to Content

View Additional Section Content

Catecholamines, Fractionated Urine 24 Hr. *

SIM

10690 

CPT

82384 

Synonyms

Epinephrine, 24-hour urine; Dopamine, 24 –hour urine; Norepinephrine, 24-hour urine; Fractionation, Urinary Free Catecholamines; Free Catecholamine Fractionation 

Specimen Type

Urine - 24 hour 

Container

Brown plastic urine container with 30 ml 6N HCl preservative.

Collection Instructions

Instruct the patient to void at 8 A.M. and discard the specimen. Then collect all urine including the final specimen voided at the end of the 24 hour collection period (ie,8 A.M. the next morning)Container must be labeled with the patient name,date and time collection started and date and time collection finished. Refrigerate during the collection. Screw the lid on securely.

Volume

Volume: 30 ml.  aliquot
Min. volume:  4 ml .aliquot
These are the volumes sent to Lab Corp

Additional Information

Work up neuroblastoma; diagnose pheochromocytoma

Patient Preparation

Avoid patient stress. Caffeine should be avoided before and during the collection. The patient should not be subjected to hypoglycemia or exertion. Many drugs (reserpine and alpha methyldopa ,levodopa, monoamine oxidase inhibitors and sympathomimetic amines) may interfere and should be discontinued two eeeks prior to specimen collection. Nose drops ,sinus and cough medicines ,bronchodilators and appetite suppressants may interfere. Mandelamine® interferes, but thiazides do not.

Specimen Processing Instructions

Mix urine well. Measure and aliquot the 24 hour urine. Write the total  24-hour volume on the aliquot container.

Transport Requirements

Refrigerate

Specimen Stability

Refrigerated : 14 days

Rejection Criteria

Specimen collected with no preservative; specimen not refrigerated;  pH not ≤ 3

Reference Range

Reference range accompanies report.

CriticalValue

 

Test Includes

Urinary epinephrine; urinary norepinephrine; urinary dopamine 

Methodology

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

TestingFrequency

 

LCA

004176 

Reviewed By

Lisa McBride 

Reviewed Date

2/9/2018

Supplemental

* Denotes Reference Lab Test
Version: 7.0  

Was this page helpful?

Yes
No

Thank you for your feedback!

Thank you for your feedback and helping us to improve our website.
There will be no additional response.