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This document, titled "Urine collection using a 3-way urethral catheter for PuO2," discusses the development of a method for monitoring urine oxygen tension (PuO2) to diagnose acute kidney injury (AKI) in cardiac surgery patients. The authors found that measuring PuO2 levels at specific time intervals after ICU admission could predict the onset of AKI. However, they encountered challenges with urine collection and inaccuracies in PuO2 measurements. To address these issues, they examined the use of a 3-way urinary catheter to improve the accuracy of PuO2 measurements. The preliminary study suggests that urine collection from the tip of the urethral catheter may increase the accuracy of PuO2 measurements and that PuCO2 measurements may reflect the accuracy of PuO2 measurements. The authors propose that an improved device for urine collection could enable real-time monitoring of PuO2 as a biomarker for AKI. [Extracted from the article]

This document, titled "Urine collection using a 3-way urethral catheter for PuO2," discusses the development of a method for monitoring urine oxygen tension (PuO2) to diagnose acute kidney injury (AKI) in cardiac surgery patients. The authors found that measuring PuO2 levels at specific time intervals after ICU admission could predict the onset of AKI. However, they encountered challenges with urine collection and inaccuracies in PuO2 measurements. To address these issues, they examined the use of a 3-way urinary catheter to improve the accuracy of PuO2 measurements. The preliminary study suggests that urine collection from the tip of the urethral catheter may increase the accuracy of PuO2 measurements and that PuCO2 measurements may reflect the accuracy of PuO2 measurements. The authors propose that an improved device for urine collection could enable real-time monitoring of PuO2 as a biomarker for AKI. [Extracted from the article]