If your physiatristâs documentation indicates that the block was with a continuous catheter infusion, use should use 64449 (Injection, anesthetic agent; lumbar plexus, posterior approach, continuous infusion by catheter [including catheter placement] including daily management for anesthetic agent administration).
1. Refined salt, having all of its minerals removed (i.e., âpurifiedâ) is essentially a lifeless product. Being a lifeless product assures a long shelf life. In fact, refined salt can sit on the grocery shelf forever. A long shelf life is a valuable tool to maximize profits for food manufacturers.
Sodium chloride is readily water-soluble, so if this crude salt were exposed to condensation or rain water, the sodium chloride could be dissolved and removed, and the salt could in effect lose its saltiness. Also, the salty flavour is detected by our sense of taste. If there were a physiological change in the functioning of our taste buds, salt consumed may no longer taste the same, but this would not be due to any inherent change in the salt itself. In summary, salt, i.e. sodium chloride, is a very stable material which retains its properties when stored dry.