The most numerous family in Dickenson County, Virginia, bears the name of Mullins. The names of 441 Mullins' appear on the 1930 poll tax list. There are many other Mullins in other counties of Southwestern Virginia, Eastern Kentucky and Southern West Virginia.he most numerous family in Dickenson County, Virginia, bears the name of Mullins. The names of 441 Mullins' appear on the 1930 poll tax list. There are many other Mullins in other counties of Southwestern Virginia, Eastern Kentucky and Southern West Virginia.
Policy ï·Use of Sterile Ultrasound Gel Use sterile ultrasound gel as recommended in clinical practice standards for all sterile body site procedures and any invasive procedures using ultrasound-guided biopsy or ultrasound-guided device insertion (1-5).
SF 6 is used as a contrast agent for ultrasound imaging. Sulfur hexafluoride microbubbles are administered in solution through injection into a peripheral vein. These microbubbles enhance the visibility of blood vessels to ultrasound.This application has been used to examine the vascularity of tumours. SF 6 plasma is also used in the semiconductor industry as an etchant. 2  SF 6 breaks down in the plasma into sulfur and fluorine, the fluorine plasma performing the etching. 3  The magnesium industry uses large amounts of SF 6 as inert gas to fill casting forms. 4  Pressurizes waveguides in high-power microwave systems.