24 hr urine in 15 mL 50% HCl Minimum aliquot volume : 30 mL urine
High Performance Liquid Chromatography
≥ 20 yrs Epinephrine: 3-109 nmol/day ≥ 20 yrs Norepinephrine: 89-473 nmol/day ≥ 20 yrs Dopamine: 424-2612 nmol/day For subjects 19 yrs and below, results are expressed as per mmol creatinine (see individual tests)
Mean = 7 days, Range: 3 - 11 days
Monday - Friday
Instructions before sampling:
Patient should abstain from the following at least 2 days prior to and during urine specimen collection: - intake of food like chocolate, coffee, banana, food containing vanilla, citrus fruits and - where medically possible, drugs such as aspirin, a-methyldopa ( Aldomat), isoproterenol, labetalol, mandelamine, metocloproamide,acetaminophen and cimetidine. If the patient cannot be completely removed from a drug regimen, test result should be interpreted with appropriate judgement based on expected physiological response to these drugs. Total 24-hour urine volume must be clearly indicated.
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