Skip to main content
Skip to main content
Go to homepage

Catecholamine Fractionation, Free, Plasma

Centralized Core Laboratory - Mayo Clinic Laboratories : Send Out

Test ID :
Test Workstation :
Specimen Type:
Tube Type:
Special Tube Required: Purple top (EDTA- with sodium metabisulfite solution) tube
Collection Volume:
Strict Frozen
Sent to Reference laboratory
High- Pressure Liquid Chromatography (HPLC)
Special Instructions:
For Outpatients, test should only be drawn in outpatient locations within a Hospital (Akron or Beeghly). Draw 6 mL of blood into one chilled EDTA Sodium Metabisulfite tube. Call specimen processing at 3305438418 to obtain the special EDTA collection tube. Unless the purpose of the measurement is drug monitoring, discontinue any epinephrine, norepinephrine, or dopamine for at least 12 hours before specimen draw. Discontinue drugs that release epinephrine, norepinephrine, or dopamine or hinder their metabolism for at least 1 week before obtaining the specimen. If this is not possible for medical reasons contact the laboratory. Refrain from tobacco and drinking caffeinated beverages for at least 4 hrs. before specimen draw. Drawing from a catheter is required. Have patient rest for 30 min. in the supine position. Then withdraw and discard a minimum of 3mL of blood to remove saline out of the catheter. Days Peformed: MonFri 9:00AM Call laboratory to make sure they have proper tubes for collection and to verify collection requirements.
2-5 days
Additional Info:
Reference range:
  • Norepinephrine:
  • Supine: 70-750 pg/mL
  • Standing: 200-1700 pg/mL
  • Epinephrine:
  • Supine: undetectable-110 pg/mL
  • Standing: undectable-140 pg/mL
  • Dopamine:
  • < 30 pg/mL ( no postural change)
  • CPT Code:
    Panel Includes:
    Unconjugated norepinephrine,epinephrine, and dopamine
    Summit Mall Play Area
    Answer Key:
    Click to expand
    There are 10 nurses in the picture.

    And we have many more pediatric primary care providers in Northeast Ohio. You can meet some of them here.
    Summit Mall Play Area
    Answer Key:
    Click to expand
    The five differences are:
    – Phone color
    – Coat pocket
    – Stethoscope earpiece color
    – Stethoscope bell dot
    – Clipboard paper color

    Need help finding a doctor, choosing a location or getting a general question about Akron Children's answered? Call us or fill out the form and we'll help in any way we can.
    Summit Mall Play Area
    Answer Key:
    Click to expand
    The two matching doctors are 9 and 14.

    With virtual visits, you can see our pediatric experts from the comfort of home or wherever you are.
    Summit Mall Play Area
    Answer Key:
    Click to expand
    The correct path:
    The Correct Path
    We offer many ways to get pediatric care all over Northeast Ohio. Use this page to find the right kind of care and the most convenient location for you.