Important Information to Know During Our Campus Transformation — Read More
Search All

Lab Test Dictionary

Catecholamines, Fractionated, 24 Hour Urine (39627X)


High Performance Liquid Chromatography (HPLC)


Noradrenalin; Urine Catecholamines; Epinephrine; Urine Catecholamines

Specimen Type

Urine, Timed Collection

Performing Lab

Quest Diagnostics San Juan Capistrano

Epic ID


Lab Test Days


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


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