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.
This is a list of 10 examples of physical changes. 1  crushing a can. 2  melting an ice cube. 3  boiling water.  mixing sand and 1  water. breaking a glass.  dissolving sugar and 1  water. shredding 2  paper. chopping  wood. mixing red and green 1  marbles. sublimating  dry ice.