pH ölçümlerinin karşılaştırmalı analizi: İdrar dipstik ve pH metre

Abstract

Amaç: İdrar pH'ı, bir bireyin metabolik ve fizyolojik durumunu değerlendirmede kritik bir parametredir. Bu çalışmanın amacı, idrar pH'ının dipstik ölçümünü altın standart yöntem olan pH metre ile karşılaştırmaktır. Gereç ve Yöntemler: Her numune, kombine cam elektrotlu Jenway 3310 pH metre ile ve ardından Sysmex UC-3500 idrar analizörü ile Meditape UC-9A idrar dipstikleri kullanılarak hemen test edildi. Bulgular: Zonguldak Bülent Ecevit Üniversitesi Hastanesi'nde yatan ve ayaktan hastalardan toplam 3043 idrar örneği toplandı. İdrar dipstikleri ile pH metre arasında güçlü bir korelasyon bulundu, rho değeri 0,909 (95% CI 0,902 ila 0,915), p<0,001. Yöntemler arasındaki sapma değerleri -0,18 (95% CI -0,1893 ila -0,1695) idi, iki standart sapma alt sınırı -0,72 (95% CI -0,74 ila -0,70) ve üst sınırı 0,36 (95% CI 0,34 ila 0,38) olarak belirledi. Sonuç: İdrar dipstikleri, rutin kontroller ve ilk taramalar için kolaylık ve pratiklik sunar. Buna karşılık, pH ölçerler kapsamlı klinik değerlendirmeler ve araştırma uygulamaları için çok önemli olan hassasiyet ve güvenilirlik sunar. Bu nedenle, doğru ölçüm gerektiğinde cam elektrotlu bir pH ölçer zorunludur.

Keywords

• İdrar pH
• idrar dipstik
• pH metre

Comparative analysis of pH measurements: Urine dipstick and pH meter

Abstract

Aim: Urine pH is a critical parameter in assessing an individual’s metabolic and physiological status. The aim of this study was to compare dipstick measurement of urinary pH with gold standard pH meter readings. Material and Methods: Each sample was tested by Jenway 3310 pH meter with a combined glass electrode and again using Meditape UC‐9A urine dipsticks with Sysmex UC-3500 dipstick analyzer. Results: A total of 3043 urine specimens were collected immediately after voiding from in-patients and out-patients at the Zonguldak Bulent Ecevit University Hospital. A strong correlation was found between urine dipstick and pH meter, with a rho value of 0.909 (95% CI 0,902 to 0.915), p<0.001. The bias values were between techniques was -0.18 (95% CI -0.1893 to -0.1695) with the two standard deviations establisheing the lower limit at −0.72 (95% CI -0.74 to -0.70) and the upper limit at 0.36 (95% CI 0.34 to 0.38), respectively. Conclusion: Urine dipsticks offer expediency and practicality, making them suitable for routine checks and initial screenings. Conversely, pH meters deliver precision and reliability that is pivotal for comprehensive clinical assessments and research applications. Therefore, a pH meter with a glass electrode is mandatory when accurate measurement is necessary.

Keywords

• Urine pH
• urine dipstick
• pH meter

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