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Catecholamines, Fractionated, 24-hour Urine

Item Value
Approval req'd? No
Available Stat? No
Test code UCAF
Test group Catecholamines
Performed by Quest
Sendout? Yes
Method HPLC w/ECD
Patient Preparation It is preferable 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. Patients should avoid alcohol, coffee, tea, tobacco or strenuous exercise during the period of collection.
Container type 24 hour urine collection container

Click here for Urine Preservative Requirements
Amount to Collect Entire 24 hour urine output
Sample type 24 hour urine collection
Preferred volume 10 mL urine
Min. Volume 5 mL urine
Processing notes pH of the collected urine should be < 3. Record total urine volume on request. Refrigerate aliquot promptly. Order Quest # 4168N.
Units µg/24 hours (mcg/24 hours)
Normal range Epinephrine
3-8 years 1-7 µg/d
9-12 years ≤ 8 µg/d
13-17 years ≤ 11 µg/d
> 17 years 2-24 µg/d


Norepinephrine
3-8 years 5-41 µg/d
9-12 years 5-50 µg/d
13-17 years 12-88 µg/d
> 17 years 15-100 µg/d


Dopamine
3-8 years 80-378 µg/d
9-12 years 51-474 µg/d
13-17 years 51-645 µg/d
> 17 years 52-480 µg/d

Total Nor + Ep
3-8 years 9-51 µg/d
9-12 years 9-71 µg/d
13-17 years 13-90 µg/d
> 17 years 26-121 µg/d
Synonyms Adrenaline; catechols; dopamine; noradrenaline; norepinephrine; epinephrine
Turn around times Test run Monday-Friday. Turnaround time: 2-5 days.
Additional information To convert µg/d to nmol/d (SI units), multiply Epinephrine value by 5.46, Norepinephrine by 5.91, Dopamine by 6.53.

A creatinine level is measured on the same sample of urine; if total creatinine excretion is not within normal limits for patient age and sex and the patient has normal renal function, the urine collection is probably incomplete and the results invalid.
LOINC code 27055-3
Last Updated 4/30/2014 9:10:28 AM
Entry Number 173
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