The examination is conducted with the upper body exposed while lying on a bed. The heart is best assessed in the left lateral position or in the supine position. A blunt ultrasound probe is used to apply some pressure on the chest over the heart to generate the best possible images. Ultrasound gel is used for better coupling. Some patients may find the pressure over the ribs during the examination slightly uncomfortable, but the majority of patients do not experience any discomfort during this examination.