Lung Ultrasound: B-Lines. The presence of “B-lines” indicates alveolar interstitial syndrome. B-lines are defined as laser-like artifacts that begin from the pleural line and extend to the bottom of the screen without fading and move in conjunction with respiration. (Illustration courtesy of Robinson M. Ferre, MD; ultrasound contributor: Jordan Rupp, MD.)

Please go HERE to watch a point-of-care ultrasound demonstrating B-lines.

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