Nurse-Performed Lung Ultrasound Shows High Specificity for Pulmonary Congestion: Study
Researchers identified that a single, skilled nurse could safely rule out pulmonary congestion in patients with acute kidney injury (AKI) with lung ultrasound (LUS), providing new promise for the inclusion of point-of-care imaging in nursing practice. In a prospective exploratory diagnostic accuracy study, LUS performed by a nurse had high specificity (94%) but moderate sensitivity (50%) for detecting pulmonary congestion in critically ill adults. The study was published in the International Journal of Nursing Knowledge by Bruna G. and colleagues.
The research was carried out from October 2022 to September 2023 in a Brazilian general hospital ICU. A convenience sample of 64 adult AKI patients admitted to the ICU were included. Bedside LUS was conducted by a critical care nurse according to the "Bedside Lung Ultrasound in Emergency" protocol. Pulmonary congestion was considered to be present when ≥3 B-lines in ≥2 intercostal spaces on both sides of the chest. These ultrasound results were subsequently compared to an independent reference standard of vascular congestion on chest X-ray or CT scan, interpreted by blinded intensivists.
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