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Lab Test Dictionary

Catecholamines, Fractionated and VMA, 24-Hour Urine (39626X)

Specimen Type

Urine, Timed Collection

Performing Lab

Quest Diagnostics San Juan Capistrano

Epic ID

Other Reference Test

Lab Test Days


Standard TAT

5-8 Days

Collection Information

Specimen Required

10-20 mL 24 Hour Urine

Container Type

24-Hour Urine Container

Collection Instructions

It is preferable for the patient to be off medications for three days prior to collection. However, common antihypertensives (diuretics, ACE inhibtiors, calcium channel blockers, alpha and beta blockers) cause minimal or no interferance. Patient should avoid alcohol, coffee, tea, tobacco (including use of nicotine patch), bananas, citrus fruits and strenuous exercise prior to collecion.

Processing Information - Lab Use Only

Transport Temperature


Specimen Stability

Room Temp: 7 Days; Refrigerated: 14 Days; Frozen: 49 Days

Test Volume Required

20 mL 24 Hour Urine

Minimum Test Volume

10 mL 24 Hour Urine

Processing Instructions

Adjust pH to <3.0 using 6N HCl. Urine without preservative is acceptable if pH is below 6 and sample is shipped frozen.

Included Tests

Creatinine, Norepinephrine, Epinephrine, Dopamine, Total Catecholamines (calculated) and VMA

CPT Codes

82384, 84585, 82570 (x2)