Dipstick color recognition in dry chemical urinalysis: A mini review-ZENTIME PUBLISHING CORPORATION LIMITED

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Dipstick color recognition in dry chemical urinalysis: A mini review

Qianfeng Xu, Rongguo Yan, Weifeng Wu, Yongqian Zhang

School of Health Science and Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China.

Address correspondence to: Rongguo Yan, School of Health Science and Engineering, University of Shanghai for Science and Technology, NO.334, Jungong Road, Shanghai 200093, China. Email: yanrongguo@usst.edu.cn.

Received April 3, 2023; Accepted August 25, 2023; Published September 30, 2023

DOI: https://doi.org/10.61189/494562hpikfi

Highlights

This review presents four urinalysis methods, the naked-eye method, the integrating sphere method, the color sensor method and the image sensor method, based on color recognition technology, and discusses the techniques of each method.

Abstract

Urinalysis is an essential diagnostic tool for urinary tract infections, kidney disease, diabetes, and other clinical conditions. Dipsticks, which allow for quick screening of urine specimens, are used in the clinic settings to identify the presence and concentration of labeled substances such as urine pH, urine protein, urine glucose, urine ketone, and urine nitrite. This paper reviews four urine dry chemical analysis methods, which are based on human eyes, integrating sphere, color sensors, and image sensors, respectively. The techniques of each method are also discussed.

Keywords: Urinalysis, dry chemical analysis, color recognition, RGB color sensor, image sensor

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