Synonym(s):
24 hr urine collected in 15 mL 50% HCl Minimum aliquot volume : 30 mL urine
High Performance Liquid Chromatography
0 – 2 yr : < 46 nmol/mmol creatinine 2 – 4 yrs : < 35 nmol/mmol creatinine 5 – 19 yrs : < 21 nmol/mmol creatinine ≥ 20 yrs : 3 - 109 nmol/day
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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