Methodology
High Performance Liquid Chromatography (HPLC)
Synonyms
Noradrenalin; Urine Catecholamines; Epinephrine; Urine Catecholamines
Specimen Type
Urine, Timed Collection
Performing Lab
Quest Diagnostics San Juan Capistrano
Epic ID
LAB01159
Lab Test Days
Monday-Friday
Standard TAT
3-5 Days
Collection Information
Specimen Required
5-10 mL 24 Hour Urine
Container Type
24-Hour Urine Container
Collection Instructions
It is preferred for the patient to be off medications for three days prior to collection. However, common antihypertensives (diuretics, ACE inhibitors, calcium channel blockers, alpha and beta blockers) cause minimal or no interference. Patient should avoid alcohol, coffee, tea, tobacco and strenuous exercise prior to collection.
Processing Information - Lab Use Only
Transport Temperature
Refrigerate-OK/Frozen-OK/Ambient-OK
Specimen Stability
Room Temp: 7 Days; Refrigerated: 30 Days; Frozen: 49 Days
Test Volume Required
10 mL 24 Hour Urine
Minimum Test Volume
5 mL 24 Hour Urine
Processing Instructions
Urine without preservative is acceptable if pH is below 6 and the sample is shipped frozen. It is acceptable to adjust pH to be <3 after 24 hour urine has been aliquoted. Indicate total volume and pH in comments, on specimen and on batch sheet.
Included Tests
Creatinine, Norepinephrine, Epinephrine, Dopamine and Total Catecholamines (calculated).
CPT Codes
82384, 82570; 81050
Revised
08-15-19
Initials
SL