Where I work, for dogs under 7 an annual exam is an exam, and then the rabies and distemper/parvo vaccines every 3 years. Bordatella once or twice a year depending on the dog. Heartworm test every year, fecal float twice a year. For dogs 7 and older we recommend what we call a senior profile, which is baseline kidney/liver enzymes (total of 12 separate tests...BUN, ALKP, ALT, Creatinine, total protein, Phosphorus, cholesterol, glucose...I can't remember them all right now), ERD (urine test for proteinuria (sp?)), CBC, and electrolytes. Most people don't actually do the senior profile, but we offer it and recommend it, and it has caught some stuff early on many patients.