Test Overview
Method
Liquid chromatography-tandem mass spectrometry (LC-MS/MS)
Result Included
Epinephrine; Epinephrine/Creatinine Ratio; Norepinephrine; Norepinephrine/Creatinine Ratio
Specimen
Specimen Type
Urine (Random)Volume
Sample Volume
25 mL
Patient Preparation
Restrict caffeine, nicotine and alcohol 24 hours prior to collection. Discontinue Methyldopa (Aldomet) at least 5 days prior to collection. Other drugs usually do not interfere with this assay.
Collection & Handling
Collection Instructions
Acidify aliquot 6 mol/L (6N) HCl. The final pH must be maintained from 2 – 4.
Handling Information
Store and send cold or frozen.
Additional Information
Indicate random collection.
Stability
| Refrigerated | Frozen |
|---|---|
| 1 month | Over 1 month |
Performance & Interpretation
Turnaround Time
7 days
Results
Name
Units
Reference Range
Conversion
-
Creatininemmol/LNone
-
Epinephrinenmol/LNone
-
Epinephrine/Creatinine Rationmol/mmol Creatinine<20µg/mg Creatinine x 617
-
Norepinephrinenmol/LNone
-
Norepinephrine/Creatinine Rationmol/mmol Creatinine<70.0µg/mg Creatinine x 669
Referral Location
Canada
Interface & Setup
HL7 Interface Codes
| Order Code | Result Name | Result Codes | Units |
|---|---|---|---|
| CATFRU | Creatinine Rand Urine | 28004 | mmol/L |
| Epinephrine Random | 63396 | nmol/L | |
| Epinephrine/Creatinine Ratio, Random Urine | 63397 | nmol/mmol creatinine | |
| Norepinephrine Random | 63398 | nmol/L | |
| Norepi/Crt Ratio Random | 63399 | nmol/mmol creat |
Test Version
Last Updated
2023-01-26