CATECHOLAMINES, URINE - RANDOM

Specimen Required
Collect random urine. Add 1-2 drops 6N HCl to a 10 mL urine aliquot within 4 hours of collection. Mix well, ensure pH is between 1-3, and send urine refrigerated in a plastic screw-capped urine cup.
Note: Medications that may interfere with catecholamines and metabolites include amphetamines-like compounds, appetite suppressants, bromocriptine, buspirone, caffeine, carbidopa-levopa (Sinemet), clonidine, dexamethasone, diuretics, ethanol, isoproterenol, methyldopa (Aldomet), MAO inhibitors, nicotine, nose drops, propafenone (Rythmol), reserpine, theophylline, tricyclic antidepressants, and vasodilators.

Methodology
High Performance Liquid Chromatography

Stability
With Preservative:
Room Temperature: 72 hours; Refrigerated: 7 days; Frozen: 1 month
Without Preservative: Not stable at any temperature

Reference Range
By report

Performed
Setup: Monday, Wednesday, Friday
Reported: 2-4 days

Turnaround Time4-6 days
Test CodeUCATR
CPT-4 Code (s)
82384, 82570
LOINC Codes
Creatinine:   2161-8  
Epinephrine:   13734-9  
Norepinephrine:   13782-8  
Dopamine:   13733-1  

Warde
Medical
Laboratory