LVT's are not LVTs because they can place catheters, they have the trainng and knowledge to be much more than that. Instead of LVT, their title should be Veterinary Nurse (CVN, CRVN) and then have the opportunity to expand their capabilities to become the equivalent of a Nurse Practitioner or PA on the human side.
LVTs are not created equal in my experience. Every veterinarian knows a non-licensed assistant that they would trust at least as much or more than a LVT. Regardless of who places the catheter the responsibility of care for the patient still lies with the veterinarian of record.