The Journal of the Korea Contents Association (한국콘텐츠학회논문지)

The Korea Contents Association (한국콘텐츠학회)
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Comparative Evaluation of First Urine and Intermediate Urine Samples Collected using a Patented Urine Cup

특허 받은 소변컵을 이용하여 채집한 첫 소변과 중간소변 시료의 비교 평가

  • Received : 2022.02.23
  • Accepted : 2022.04.16
  • Published : 2022.06.28
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Abstract

In general, as a method to confirm a urinary tract infection (UTI) in a medical institutions, urine culture including a urinalysis and an antimicrobial susceptibility test is performed. It is important to disinfect the area around the urethra and perineum before collecting urine samples, and it is important to collect it intermediate urine, not the first-void urine. We invented a patent urine cup (Patent No. 10-1732843) that can automatically and easily separate first-void urine and midstream urine and using this, the patent cup and the general cup were compared and evaluated using this. Nitrite (P<0.001), WBC (P=0.005), Bacterial colony count (P=0.001), colony positivity rate (P=0.004) in first-void urine (N=24), midstream urine (N=24) separated by patent cup to obtain a significantly higher value. This can be seen from the fact that the first-void urine and midstream urine separated using the patent cup were well separated. Also, the number of Bacterial colonies was statistically significantly higher in the midstream urine isolated using a patent cup (N=24) than in the midstream urine collected using a general cup (N=24) (average 7.9 vs. 4.0 on average, P= 0.002). Which means that the midstream urine separated using the patent cup is more sensitive to the UTI test than the midstream urine collected using a general cup.

일반적으로 의료기관에서 요로감염을 확인하기 위한 방법으로 요검사(urinalysis)와 항균제 감수성 검사가 포함된 소변배양(urine culture)을 시행한다. 소변 검체는 채집하기 전에 요도 및 회음부 주변을 소독하는 것이 중요하며, 첫 소변이 아닌 중간소변으로 채집하는 것이 중요하다. 첫 소변과 중간소변을 자동으로 쉽게 분리할 수 있는 특허컵(특허 제10-1732843호)을 발명하였고 이를 이용하여 특허컵과 일반컵을 비교 평가하였다. 특허컵으로 분리한 첫 소변(N=24), 중간소변(N=24)의 nitrite (P<0.001), WBC (P=0.005), 세균 colony 수 (P=0.001), colony 양성률 (P=0.004) 으로 유의한 높은 수치를 얻었다. 이는 특허컵을 이용하여 분리한 첫 소변과 중간소변이 잘 분리되었음을 알 수 있다. 또한 특허컵을 이용하여 분리한 중간소변(N=24)이 일반컵을 이용하여 채집한 중간소변(N=24) 보다 세균 colony 수가 통계적으로 유의하게 많았다(평균 7.9개 vs 평균 4.0개, P=0.002). 이는 특허컵을 이용하여 분리한 중간소변이 일반컵을 이용하여 채집한 중간소변 보다 요로감염검사에 대해 민감도(sensitivity)가 높다는 것을 의미한다.

Keywords

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