Urine Collection from Disposable Diapers in Infants and Young Children

Kim, Mi Jeong; Kim, Ji Hae; Yim, Hyung Eun; Kang, Hee; Eun, Baik Lin; Yoo, Kee Hwan; Hong, Young Sook; Lee, Joo Won; Kwon, Junga

J Korean Soc Pediatr Nephrol > Volume 9(2); 2005 > Article

J Korean Soc Pediatr Nephrol 2005;9(2): 128-136.

유소아에서 일회용 기저귀를 이용한 소변 채취 방법

김미정, 김지혜, 임형은, 강희, 은백린, 유기환, 홍영숙, 이주원, 권정아

¹고려대학교 의과대학 소아과학교실
²고려대학교 의과대학 소아과학교실
³고려대학교 의과대학 소아과학교실
⁴고려대학교 의과대학 소아과학교실
⁵고려대학교 의과대학 소아과학교실
⁶고려대학교 의과대학 소아과학교실
⁷고려대학교 의과대학 소아과학교실
⁸고려대학교 의과대학 소아과학교실
⁹고려대학교 의과대학 진단검사학교실

Urine Collection from Disposable Diapers in Infants and Young Children

Mi Jeong Kim, Ji Hae Kim, Hyung Eun Yim, Hee Kang, Baik Lin Eun, Kee Hwan Yoo, Young Sook Hong, Joo Won Lee, Junga Kwon

¹Department of Pediatrics, College of Medicine, Korea University
²Department of Pediatrics, College of Medicine, Korea University
³Department of Pediatrics, College of Medicine, Korea University
⁴Department of Pediatrics, College of Medicine, Korea University
⁵Department of Pediatrics, College of Medicine, Korea University
⁶Department of Pediatrics, College of Medicine, Korea University
⁷Department of Pediatrics, College of Medicine, Korea University
⁸Department of Pediatrics, College of Medicine, Korea University
⁹Department of Laboratory Medicine, College of Medicine, Korea University

ABSTRACT

Purpose : Urine collection using a sterile adhesive bag for urinalysis has been used commonly in infants and young children. However, this method has had some drawbacks. So, this study was performed to evaluate the usage of disposable diapers as a substitute for the routine urine collection method.
Methods : 60 mL of self voided fresh urine was collected from 99 patients. Half of the urine was poured on the disposable diapers which did not contain absorbent gel beads. After 1 hr, we obtained the urine samples(extracted urine) by compressing the wet diapers using a 50 ml syringe. Routine, microscopic and biochemical analyses were performed on the other half of fresh urine and extracted urine. Then we compared each result by correlative analysis.
Results : 198 samples from 99 patients were evaluated. The results of routine urinalysis except WBC and biochemical urinalysis showed a significant correlation between the two groups(P<0.05). The relative coefficients of urine SG, pH, glucose, protein, blood and leukocytes between the two groups were 0.964, 0.938, 0.977, 0.956, 0.931 and 0.738, respectively. Those of urinary sodium, potassium, chloride and creatinine were 0.997, 0.998, 0.995 and 0.998, respectively Microscopic examinations showed lower relative coefficients than the other results, 0.740 for RBC and 0.602 for WBC, but these were still significant(P<0.05).
Conclusion : The results of the urine analysis with extracted urine from diapers correlates well with that of fresh urine. This new method is very helpful and can be used as an alternative of urine collection, especially for infants and young children. (J Korean Soc Pediatr Nephrol 2005;9:128-136)

Key words: Urine collection | Disposable diapers | Urinalysis