EM Ultrasound Part 1: USG Gallbladder

A very informative and nice set of videos demonstrating the use of USG in ED settings to rule out Gall Bladder diseases:

Positioning and Probe for GB Exam

Gall Bladder Part 1

Gall Bladder Part 2

Gall Bladder Part 3

( Courtesy: SonoSite )