Based on this video, what is the estimated right atrial pressure in millimeters of mercury...

Comprehensive and Detailed Explanation From Exact Extract:

The video shows a subcostal IVC view with measurement of IVC diameter and respiratory collapsibility. The IVC appears dilated (>2.1 cm) with less than 50% collapse on inspiration, suggesting elevated right atrial pressure (RAP).

According to ASE guidelines for noninvasive RAP estimation, an IVC diameter >2.1 cm with <50% collapsibility corresponds to an RAP of approximately 10 mmHg.

Lower RAP values correspond to smaller IVC and greater collapsibility. This is a standard measurement in adult echocardiography practice and ASE chamber quantification guidelines【12:ASE Chamber Quantification Guidelines†p.80-85】【16:Textbook of Clinical Echocardiography, 6e†p.115-120】.