Hope your boy is feeling better now!
A vet appointment for a 'wellness exam' is always a good idea with any new critters.
This gives the vet a chance to meet an exam your hound when the dog is feeling well.
They'll weigh him, take his temp, look at his teeth, update any vaccines.
This gives you a chance to meet the staff at the clinic and also ask any questions you might have.
Then, if you do have an emergency situation, the clinic will have all his 'normal' vitals on record.