Fig. 9From: Clinically integrated multi-organ point-of-care ultrasound for undifferentiated respiratory difficulty, chest pain, or shock: a critical analytic reviewB-lines. B-line (arrow) is a bright comet-tail artifact that arises from the pleural line (arrowhead). It will move with lung sliding, if the sliding is present, and extends to the end of the screen without fadingBack to article page