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Pre-anesthesia clinic

The Pre-anesthesia Clinic will help prepare you for your surgery.

Patients scheduled for surgery at Sunnybrook usually have an appointment to make sure they are fit and safe to undergo an operation. This is called the pre-anesthesia assessment.

Pre-anesthesia Assessment

During the assessment, you will be asked about your medical history, the medications you take and any special needs you might have after your surgery.

  • The assessment may be done over the phone or in-person at the hospital
  • Patients with an uncomplicated health history and not requiring any pre-op testing, are usually assessed over the phone
  • You will receive a message by email or phone telling you whether you will have an assessment by phone or in-person at the hospital
  • If you wish to book your own appointment, you can use Sunnybrook's digital assistant
    • To use this service, please provide your cell phone number and/or email address to your surgeon's administrative assistant.
    • You will then receive a custom link and verification code that can be used to access the service

If you Do Not wish to use this automated service, the pre-anesthesia clinic will contact you to schedule an appointment.

If you have a telephone assessment appointment:

  • Make sure your surgeon’s office has a phone number that you can be reached at during the day
  • The nurse will call your daytime number around the time of your appointment; please keep in mind the nurse may fall behind schedule with other patients. The nurse may call you at any time within the hour of your scheduled appointment.

If you have an in-person hospital assessment appointment:

  • Please check-in at M Wing, on the Ground Floor, Room 402 (MG 402)
  • The visit will take place in the Pre-anesthesia Clinic and last from 2 to 4 hours
  • You will meet with a nurse, and may also meet with a pharmacist and the doctor (the anesthesiologist) who will put you to sleep in the operating room when you have surgery
  • Please eat and take all your regular medications before you come to this appointment


  • If you do not read or speak English, it is helpful to bring someone who will be your translator
  • Please bring only 1 family member or friend to the appointment

Please bring with you:

  • Your Ontario health card
  • Your Sunnybrook card
  • Identification showing your date of birth and address
  • Your WSIB claim number, if you have one
  • Additional insurance, if you have it
  • The name and telephone number of your family doctor
  • The names and telephone numbers of any specialists you have
  • ALL of your medications in their original containers; these include pills, inhalers or puffers, injections, and eye drops; also bring any herbal medicines or vitamins you take
  • All herbal medications must be stopped two weeks before your surgery; they can cause problems during your surgery

Eat, drink, and take ALL of your regular medications on the day of your clinic appointment.

Nursing assessment

You will be seen by a nurse who will talk to you about your health and any special needs you have. At this visit you may have tests done like blood work and a cardiogram. More tests may be ordered by the doctor. Please wear comfortable clothing. The nurse will give you information on:

  • Where to check in
  • How to get ready for surgery
  • Care given before surgery
  • Care given after your surgery
  • How to manage your pain after surgery
  • Planning for your discharge

Physician consultation

An anesthesiologist may assess your health to see if you are fit for surgery. The doctor will talk to you about the kind of medication you will need during surgery to keep you comfortable.

Pharmacist consultation

A pharmacist may review your medications with you. The pharmacist assesses which medications should be continued prior to surgery and whether you have to stop any of your medications. For this reason, it is very important that you bring all of your medications, including inhalers, injections, eye drops, patches, medicated creams/ointments, vitamins and other over-the-counter medications with you.

Non-residents of Canada

If you are a non-resident (visitor to Canada) financial arrangements must be made with the Patient Accounts office prior to your surgery date.

Scheduling note

Please note that although everything possible will be done to prepare you for your surgery, surgical times are guidelines only. Delays are common. Sometimes, scheduled surgery cases are cancelled because there is someone else who needs emergency surgery, or there is no post-operative bed available. If this happens to you, you will be contacted by your surgeon's office to have your surgery rescheduled as soon as possible.

Location and contact

Pre-anesthesia Clinic 

Sunnybrook Health Sciences Centre
2075 Bayview Avenue
M-wing, ground floor, 
room 402 (MG 402)
Toronto, ON M4N 3M5

Please be on time for your appointment.

Garage parking is recommended. Valet parking is available.