I would administer preoperative fluids to the patient at 5 mls/kg/hr at least four hours before the procedure along with repeating a renal panel to recheck the values (BUN, Cr) before surgery.
Buprenorphine 0.02 mg/kg IV or
Hydromorphone 0.05 mg/kg IV
Propofol or Alfaxalone 4 mg/kg IV
Isoflurane or sevoflurane for maintenance
Peri-operative Fluid Therapy:
Balanced crystalloid at 5 mls/kg/hr
Blood Pressure Support:
Dopamine 3-10 mcg/kg/min can be administered in the event of intra-operative hypotension (MAP < 60 mmHg).
Local dental blocks should be utilized to limit peri-operative pain.
0.75 mg per injection 20 minutes before tooth extractions
Post-operative Pain Management:
Buprenorphine 0.01 mg/kg IV
Given the elevation in kidney values, I would withhold from administering a NSAID at this time.