[header] How to have a successful visit to the vet [title] Schedule an appointment. [step] This lets the vet know you are coming, so he will have space in the schedule for you. Make sure that you have a reason for coming in when you call the vet's office. 
This doesn't have to be a problem for your pet, as just regular check-up can be a good reason. You don't want to come in without an appointment, because your risk having other people in line, and the vet won't be able to see you and your furry (or feathery or scaly) friend.