The monitor shows 2 images: a single acoustic beam (solid line) imposed on the smaller B mode image on one portion of the monitor, and that single beam presented as a vertical line moving across the monitor in a separate M mode area. [msdmanuals.com]

Bedside ultrasonography is increasingly used in acute care settings to assist both diagnosis (eg, fluid accumulations or foreign bodies) and treatment (eg, intravenous catheterization or arthrocentesis). [msdmanuals.com]

Then use 4 × 4 gauze squares for 10 minutes to hold external pressure on the area and to help prevent bleeding and hematoma. [msdmanuals.com]