Laboratory Medicine
Test catalogue
Catecholamines, 24hrs Urine | |
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Test nameCatecholamines, 24hrs Urine |
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Specimen Type / RequirementsContainer Type = 24 hour 25 mL 6 mol/L (6N) HCl acid Bottle Minimum Testing Volume = 25 mL urine from mixed urine Collection |
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Specimen HandlingCollection Instructions: Collect urine in a container with 25 mL 6 mol/L (6N) HCl acid. It is important that the urine is refrigerated during the collection. Restrict caffeine, nicotine and alcohol 24hrs prior to collection. Discontinue Methyldopa (Aldomet) at least 5 days prior to collection. Other drugs usually do not interfere with this assay. State 24 h volume and collection date. Write your "start" and "end" date and time of collection on the collection label or requisition. Laboratory Staff Instructions: State 24 hour volume and collection date. A separate specimen is required if Metanephrines are ordered as well. Store and send frozen. Stability: stable for 1 month refrigerated at 2-8°C and longer frozen. Transportation: Send sample to SMH core lab as soon as possible. Sample Rejection Criteria: Unlabelled, NSQ or leaking specimen |
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Required Documentation |
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Turnaround Time (TAT)7 Days |
Test Utilization |
Reference ValueCreatinine/d: 7.0 - 15.0 nmol/d Epinephrine Total: < 150 nmol/d Epinephrine/Creatinine Ratio: 0.0 - 7.0 nmol/mmol Creatinine Norepinephrine Total: < 600 nmol/d Norepinephrine/Creatinine Ratio: < 70 nmol/mmol Creatinine |
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Test Code24CTF |
MethodologyLC-MS/MS |
Testing LocationSMH-Biochemistry |
Other InformationLast Updated: June 05, 2020
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