Comparative study of vanillylmandelic acid in random and 24-hour urine collections.
Urinary vanillylmandelic acid (VMA) levels were determined in random samples and in 24-hour collections from 52 patients. Random sample levels were compared with levels in 24-hour collections and showed good correlation (r = 0.99), and no statistically significant differences was found when urinary VMA levels in random samples expressed in micrograms/mg creatinine (p greater than 0.1). Normal values of VMA in random urine samples of 226 healthy volunteers for different age groups of 1-5, 6-10, 11-15, 16-30, 31-60 years old were 17.03 +/- 6.61, 10.32 +/- 3.25, 10.87 +/- 4.5, 7.62 +/- 3.05 and 7.79 +/- 3.94 micrograms/mg of creatinine respectively.
Riddhimat
R
R
Department of Clinical Microscopy, Faculty of Medical Technology, Mahidol University, Bangkok, Thailand.
Prabhant
C
C
Sirisali
K
K
Tangvarasithichai
O
O
Poosiri
A
A
D000293:Adolescent; D000310:Adrenal Gland Neoplasms / Q000652:urine*; D000328:Adult; D000368:Aged; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008297:Male; D008875:Middle Aged; D009447:Neuroblastoma / Q000652:urine*; D010673:Pheochromocytoma / Q000652:urine*; D013048:Specimen Handling / Q000379:methods / Q000592:standards*; D013997:Time Factors; D014642:Vanilmandelic Acid / Q000652:urine*
D014642:Vanilmandelic Acid