Perioperative Care; Fluid and Electrolyte

3 Phases of Surgery

Pre-operative : Begins when the decisions for surgical intervention is made and ends when the patient is transferred to the operating room.

Intra-operative : Begins when the patient is transferred to the surgery and ends when transferred to the recovery room.

Post-operative : Begins when the patient is admitted to the recovery room and ends with follow up evaluation in the clinical setting or home.