Test directory: Catecholamines,Fract & Creat,Ran Ur

Ordering Code 4393
Test Name Catecholamines,Fract & Creat,Ran Ur
Alias Catecholamines, Fractionated, w/
Creatinine, Random Urine
Catecholamines, Fractionated
Catecholamines, Free Adrenaline &
Noradrenaline, Epinephrine
Norepinephrine, Dopamine
Preferred Specimen Urine, Random
Preferred Container Sterile Container
Other Specimen/Container Random Urine in Clean Container
Urine without preservative is acceptable if pH is below 6 and the sample is shipped frozen.
Optimum Volume 20 mL
Collection Instructions Patient age & sex required on requisition
Patient should avoid alcohol, caffeine (coffee, tea, energy drinks, etc.), nicotine (tobacco), and strenuous exercise prior to collection. It is preferable for the patient to be off medications for 3 days prior to collection. However, common antihypertensives (diuretics, ACE inhibitors, calcium channel blockers, alpha and beta blockers) cause minimal or no interference.
Handling Instructions Adjust to pH<3 with 6N HCl.
Transport Requirements Oahu: Refrigerated
Airline: Refrigerated
Specimen Stability Ambient: 1 Week
Refrigerated: 1 Month
Frozen: 7 Weeks
Rejection Criteria pH>3 and not frozen.
Avail. Stat NO
Analytic Time Up to 6 Days
Methodology High Performance Liquid Chromatography with Electrochemical
Detection (HPLC)
Reference Lab  Quest Diagnostic Lab-NI

Reference range(s)

The reference ranges listed below are valid on this date of November 22, 2025.
Component Age Male Norm Male Critical Low Male Critical High Female Norm Female Critical High Female Critical Low Units Add'l info
Epinephrine ALL See report.
Norepinephrine ALL See report.
Calculated Total (E+Ne) ALL See report.
Dopamine ALL See report.
Creatinine, Random Urine ALL See report.