The role of Dutch guidelines in the diagnostic outcomes and treatment decisions of hospitalised older adults with a suspected urinary tract infection: a retrospective cohort study.

Purpose: Urinary tract infections (UTIs) are highly prevalent and difficult to diagnose in older adults. We aimed to evaluate the applicability of Dutch Association of Urology (NVU) and Dutch Association of Elderly Care Physicians (Verenso) guidelines in terms of diagnostic outcomes and treatment decisions in hospitalised older adults with suspected UTIs.

Methods: A retrospective cohort study was conducted on 225 geriatric patients with a urine culture taken in 2019, to determine conformity of the studied population to NVU and Verenso.

[Pulse oximetry: principles, limitations and practical applications].

Pulse oximetry detects hypoxemia non-invasively by measuring light absorption at different wave lengths, depending on the oxygenation of hemoglobin. The plethysmographic signal is caused by volume changes in the arterial blood during systole. In this pulsatile flow, oxygen saturation is calculated using an algorithm.