Day Surgery

On this page, you’ll find all the steps, instructions, and documents related to your day surgery at the CHUS.

Read them carefully to be well prepared. 

This will help relieve the stress of the intervention and its related procedures.



Weeks and days prior  to surgery
> Preparation clinic

Day before surgery
> Reception Admission | Department
> Preoperative fasting

Day of your surgery
> Day surgery locations

Returning home
> The 24 hours after your operation

Food Services



The week prior to surgery                                                           


Confirmation of your operation

The week prior to your intervention, you will receive a call from the reception and admissions department confirming the date of your surgery.


Presurgical Preparation Clinic

You will then receive a call from the nurse at the Surgery Preparatory Clinic to set up your appointment at the clinic.


Presurgical Preparation Clinic

Depending on your case, this step could take place by telephone or require that you go to the CHUS for several hours.

NOTE | If you have questions regarding your surgery and cannot find the answers on this page, write them down, and the Clinic’s staff will answer them. 

Preparation Clinic at the CHUS

What you should expect

What you must do

  • To meet several professionals: nurses, physicians, or other professionals to complete your health check and to determine your needs before, during, and after your surgery. 
  • To have lab tests (blood test) and other examinations (x-rays, electro-cardiograms, etc.).
  • To receive information and recommendations regarding your surgery. 
  • To sign the consent forms for your treatment, surgery, and anaesthesia.
  • To discuss your return home
  • Anticipate 1 to 4 hours for the meeting.
  • Bring money for your meal and parking.
  • Bring an updated list of the medications you are currently taking, which you should request from your pharmacist (including over-the-counter medication and natural products).
  • If you are taking Coumadin, aspirin (Entrophen, etc.) or any other anticoagulant, ask your physician whether you should stop taking it before your surgery.
  • If you are taking natural products, you should stop taking these two weeks before your surgery, with the exception of valerian.
  • Stop all consumption of non-prescribed or illegal drugs at least two weeks before your surgery (they may alter the effects of the anaesthesia).
  • Complete and bring the presurgical preparation questionnaire.
  • Be accompanied by a family member or friend.
Preparation clinic by telephone

What you should expect

What you must do

  • In some cases, when all the preoperative tests have been completed and no additional examinations are required by your physician, the preoperative evaluation and specific information regarding your surgery will be provided by telephone.
  • Have an updated list of the medications you are currently taking, which you should request from your pharmacist (including over-the-counter medication and natural products).
  • If you received a presurgical preparation questionnaire from your physician, complete it and return it to us as soon as possible.
If the surgery is for a child

What you should expect

What you must do

  • A nurse will contact one of the two parents or other designated individual to complete the preoperative assessment.
  • It’s important to prepare the child, several days before the surgery, by explaining though play, the surgery about to take place.  Example: by using a favourite plush toy to mimic the events.

Note: It is wrong to believe that explanations will frighten the child. Anxiety is easily transferred from parent to child. 

Even though it may be difficult for you, remain as calm as possible.

Since you are receiving medical care in a university hospital centre, it is common for resident physicians or other professionals in training to take part in your treatment.

These physicians and professionals are supervised by licensed specialized physicians (superiors) or licensed professionals.
You may need to return to the hospital before your surgery if other examinations are needed.

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The day before your surgery                                                                                           


Admission process

To know at what time you are expected
  • You must contact the Reception | Admission Department the day before your surgery between 1:30 and 3 p.m., Moday to Friday, to find out what time and place you need to be there.
  • If your surgery is planned for a Monday, call on Friday.
You need to cancel your surgery?

If you must cancel your surgery for personal reasons or if you have the flu, a cold, a fever, an infection or experience any other change in your health, please advise the Reception | Admission Department at least 24 hours beforehand.


Contacting the Reception | Admissions Department

Reception | Admissions Department

CHUS – Hôtel-Dieu

 819 346-1110, ext. 21140

CHUS – Hôpital Fleurimont    

 819 346-1110, ext. 14520

Due to unforeseen circumstances, the time of your surgery could be changed. Your surgery could also be cancelled and postponed to a later date.


Instructions to follow

General instructions
  • Shave the area of your body where the surgery will be performed according to the instructions provided by the Presurgical Preparation Clinic. Always use an electric razor or a hair-removing cream because a hand razor can cause small lesions and increase the risk of infection.
  • Take a shower or bath using the soap provided by the Presurgical Preparation Clinic or use an unscented soap. 
  • Remove your contact lenses.
  • Do not use perfume or moisturizing cream.
  • Remove all jewellery, including body piercings. 
    • Note: A ring may cause swelling (oedema) of the finger or a burn if electrocautery is used during the operation.

Avoid smoking or drinking alcohol 48 hours before surgery.

Directions for women
  • Remove all makeup.
  • Remove nail polish.
  • If you are menstruating, remove your tampon and replace it with a sanitary napkin before leaving home (to prevent the risk of complications linked to prolonged tampon use).

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Preoperative fasting

N.B. | These instructions apply to all types of anesthesia.
You should follow the instructions below based on your health condition.



If you have one or more of the following conditions:

  • Significant obesity 
  • Diabetes  
  • Pregnancy 
  • Kidney failure
  • Oesophageal disease
  • Hiatal or stomach hernia
  • Gastroesophageal reflux (acid reflux)

You must fast as of midnight, i.e. not drink or eat, nor have candy or chewing gum, as of midnight the day before your surgery (this is very important to prevent complications of a pulmonary nature that could occur during the anesthestic).


If you do not have any of the conditions listed in Situation A:

  • You must not eat nor have milk, candy, juice or chewing gum as of midnight the day before your surgery.
  • You may, however, drink up to a maximum of 125 ml of the following clear liquids up to three hours before you enter the hospital: black tea, black coffee (no sugar or milk), water.
If the surgery involves a child (under 14 years of age)

The child may have up to a maximum of 125 ml of clear liquid, up to three hours BEFORE entering the hospital. The clear liquids authorized include ONLY the following:

  • water
  • pedialyte
  • sugar water
  • juice with no particles (apple, grape)

If your child is under one year of age and you are breastfeeding, you can let him or her drink breast milk up to four hours before entering the hospital.

If your child is under one year of age and you are giving him/her infant formula (ex. Similac, Enfalac, etc.), you can give him/ her formula up to six hours before entering the hospital.

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The day of your surgery                                                                                            


Taking medication

The morning of your surgery, even if you have been fasting, take your medications with a little water, especially for heart, lung, pressure, and epilepsy medications and according to the instructions received from the nurse at the Presurgical Preparation Clinic. 

DO NOT take your diabetes medication.


Day surgery locations



CHUS - Hôtel-Dieu

Enter through in Door 1 from Bowen St. (parking area A) • Take elevator C, • Go up to the 3rd floor (Room 3362, day surgery).

CHUS - Hôpital Fleurimont

At the main entrance • Take the elevator • Go up to the 3rd floor (Room 3608) • Follow the signs for day surgery.

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Returning home                                                                                                        


The 24 hours after your operation

  • Do not drive.
  • Do not perform tasks requiring skill, coordination, or judgment to make legal decisions.
  • In the case of a child who has undergone surgery, keep a closer eye on his/her activities.


Click on the image for more information on General postoperative advice (French version only) |  

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General post-operative instructions

Before leaving the hospital, staff will give you a document on general post-operative instructions. It is important that you read and follow the instructions.

Summary of guide
  • Important safety measures
  • Resuming your medication
  • Pain
  • Your personal hygiene
  • Caring for your operative wound
  • Driving
  • Side effects of anesthesia
  • Nutrition
  • Hydration
  • Rest
  • Resuming physical activities
  • Resuming sexual relations
  • Precautions with sun exposure
Download the electronic version of the guide

> General post-operative instructions (French version only) [ PDF ]







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