The goal of the continuous interscalene block is similar to the non-ultrasound-based techniques: to place the catheter in the vicinity of the trunks of the brachial plexus between the scalene muscles.The procedure consists of three phases: needle placement, catheter advancement, and securing of the catheter.he goal of the continuous interscalene block is similar to the non-ultrasound-based techniques: to place the catheter in the vicinity of the trunks of the brachial plexus between the scalene muscles.
Answers. Best Answer: It should be a chemical change, since it is likely that a reaction took place. Color is a physical characteristic of a substance, but a change in color is not.
Change is all around us, even if you don't realize it; when it rains, when you cook dinner, when youâre in chemistry class. There are two different types of change- physical changes and chemical changes. Physical changes are more obvious because things often look different after a physical change occurs. A physical change is defined as when the form of a substance, or even some of its properties change, but its chemical composition- the way itâs atoms are put together- remains unchanged.