For procedures typically you will be provided an estimate with several line items, not just “neuter” but like:

-exam fee

-surgeon call fee

-OR use fee

-y tubing set

-venous access

-suture pack x1

-anesthesia fee

-anesthesia tech fee

Etc etc etc. For example some vet places will break things down to the individual parts of IV access, I mean any product that gets opened will have its own line. Other places bundle the IV access to a larger charge that includes all the individual pieces.