Research has shown that improving certain health factors before surgery can have a positive effect on surgical outcomes. You can use the wait time before your surgery to improve components of your health in order to have better outcomes. This includes things like improving your physical activity, mental wellbeing, and nutrition, and optimizing medical conditions like anemia, diabetes, and sleep apnea. The following pages provide information about different components of your health and things you can do to improve them before surgery.
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© 2025 Specialists Services Committee
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SSC. (2025). Getting Ready for Surgery: A Patient’s Guide to Prehabilitation. www.sscbc.ca/patient-prehab-guide
Avoiding alcohol before surgery is important to help your body heal faster and reduce risks. Even small amounts of alcohol can affect how your body responds to surgery and medications. Stopping or cutting back before surgery helps your body heal faster and reduces risks.
If you drink alcohol every day, your body may be dependent. Stopping suddenly can cause dangerous withdrawal symptoms. Always talk to your doctor or health care team before making changes.
Benefits of avoiding alcohol include:
If you drink alcohol, even occasionally, it is important to understand how it can affect your surgery and recovery. This information is shared with all patients who drink any amount of alcohol, so everyone take steps to stay safe and heal well.
You should not drink any alcohol for at least 24 hours before your surgery. However, if you drink alcohol every day or almost every day, stopping suddenly may cause dangerous withdrawal symptoms and you may need a plan to safely reduce or taper alcohol use with medical support. Always talk to your health care team before making changes.
No type of alcohol is safer than another - wine, beer, spirits, cider, all carry the same risks.
If you have ever had these symptoms after stopping alcohol, it is important to tell your health care team. We are not here to judge, we are here to keep you safe. You may need medication in the hospital to stay safe.
If you are ready to reduce or quit alcohol:
There is no shame in asking for help. We bring this up because alcohol can seriously affect your surgery, and we want you to have the safest recovery possible.
Learn more about substance use at Healthlink BC or call *811
Visit Help Starts Here for substance use and addictions support.
Call BC *211 or visit bc.211.ca to find community and social resources close to home.
24-hour BC Alcohol and Drug Information and Referral Service: 1-800-663-1441
Canada's Low Risk Alcohol Guidelines
First Nations Health Authority Mental Health and Substance Use
Anemia is the medical word for low red blood. Red blood cells carry oxygen, which gives your body energy and helps your brain work well. When someone has anemia, they may feel tired, weak, short of breath, or find it harder to focus.
Anemia can be caused by:
Getting anemia treated before surgery can:
Treating your anemia before surgery can make your surgery safer and help you recover faster.
Before surgery, your doctor will ask you questions about your health and may order a simple blood test. This test checks your hemoglobin level (the part of the red blood cell that carries oxygen).
If your hemoglobin is low, your health care team may do more tests to find out why. For example, they may check your iron levels, kidney health, or look for other medical conditions.
If you learn you have anemia, it is a great idea to book an appointment with your primary care provider to figure out the cause. Some hospitals also have special programs to help patients with anemia get ready for surgery. Depending on your health and type of surgery, you may need more tests or to see a specialist.
If low iron is the reason for your anemia, you may be asked to build up your iron levels by:
Your health care team may check your blood again before surgery to see how well the treatment is working.
Healthlink BC - Learn more about Anemia and how to manage it
Keeping your blood sugar (glucose) in a healthy range is very important when you are getting ready for surgery. This means not too high and not too low. It matters most if you have diabetes or trouble with blood sugar control.
Getting your blood sugar into a healthy range before surgery helps your stay safer and heal faster.
Healthy blood sugar levels:
Your health care team may order a blood test to check your blood sugar if you are in one of two groups:
You may be screened for diabetes or pre-diabetes if:
By checking your blood sugar early, your health care team can make the best decisions to keep you safe and support a smooth recovery.
If you have diabetes, pre-diabetes, or higher blood sugar, there are steps you can take to help your body get ready for surgery.
To help you reach your goal, your health care team may refer you to your primary care provider or a diabetes educator to help you with medication changes, nutrition, and lifestyle planning.
Even a few weeks of better blood sugar control can make a difference. Try to:
If you need help or are not sure what steps to take, talk to your health care team.
Healthlink BC - Diabetes
First Nations Health Authority - Health Living with Diabetes
Using cannabis (marijuana) can affect your body during and after surgery. Cutting back or stopping cannabis use before surgery can:
Cannabis can change how your body reacts to anesthesia and pain medicine. We share this information with everyone who uses cannabis so you can prepare safely and have the best possible recovery.
Being high can seriously affect how your body responds to surgery and may even put your life at risk.
You are considered a heavy user if you:
If this applies to you:
Withdrawal from cannabis is not dangerous, but quitting suddenly can make you uncomfortable.
Symptoms may include:
These usually begin 1-2 days after stopping and may last up to 3 weeks. Cutting back slowly can reduce or prevent these symptoms.
If you are ready to reduce or quit cannabis:
Learn more about Cannabis Use at HealthLink BC
Visit Help Starts Here for resources and support for Substance Use
Visit bc.2111.ca or call *211 for community resources
Canada's Lower Risk Cannabis Guidelines
First Nations Health Authority Non-Medical Cannabis Information
Delirium is type of sudden confusion that can happen after surgery. Delirium is more common in older adults and people with certain health conditions. It affects about 1 in 5 people after a big surgery. If it happens, it is important to know that it is often temporary and treatable.
Someone with delirium may:
Delirium can start quickly and may feel upsetting for patients and their loved ones.
Some people have a higher chance of getting delirium after surgery. This can depend on things like your age, memory, the medicines you take, your overall health, and how big your surgery is.
Your health care team may ask you questions about your health and daily activities to see if you may be more likely to get delirium and if you may need extra support during and after surgery.
Even if you have a higher chance of experiencing delirium, it does not mean it will happen. Instead, it gives your health care team a chance to:
There are many things you can do before and after surgery to help lower your risk of delirium and support your healing.
Here are helpful things you can do take:
There are many simple things that make recovery easier:
Delirium can be upsetting, but it is temporary and there are many ways to prevent or manage it. Your health care team and loved ones are here to support you. By following these steps, you are giving yourself the best change of healing safely and fully.
Delirium Prevention and Care with Older Adults pamphlet
Video about Postoperative Delirium (for Patients and Caregivers)
Frailty is when someone's body has become weaker and may be less able to bounce back from stress like illness, injury, or surgery. It often means someone may have less strength, energy, or muscle, and everyday tasks might feel harder.
People living with frailty may:
Frailty usually develops slowly over time and often happens when someone lives with long-term health problems. The good news is that there are ways to support your health and build strength, especially before surgery.
Even if someone living with frailty looks or feels fine day-to-day, becoming stronger before surgery can help to:
Your health care team may use something called the FRAIL Scale. It is a short set of questions that helps identify if someone is living with frailty. It is not perfect, but it is a good starting point. If the answers suggest you many be living with frailty, your health care team can take a closer look and give you support to help improve your health and recovery from surgery.
The FRAIL Scale questions are:
Sometimes your health care team may suggest you see a geriatrician, who is a doctor that specializes in caring for older adults and people with complex health needs. They can:
Remember: you are not alone. Your health care team is here to support you every step of the way. The goal is to make your surgery and recovery as safe, smooth, and personal as possible.
Improving your physical strength and balance before surgery can help you:
Free home exercise programs that are available as a follow along video or a PDF handout.
STABL - Level 2 - Stand Handout
People with frailty often need extra support to get moving safely. Here are some options for additional support.
Choose to Move |
A free 3-month program to help you be more active in a way that works for you.As part of the program, you will:
Go to choosetomove.ca/register to join. You will receive a registration package via email with the online and in-person options. |
Clinical Exercise Physiologist |
Clinical Exercise Physiologists are available for free through HealthlinkBC. They can help you with:
Call *811 (*711 for hearing impaired) or connect by email |
Physiotherapist |
Physiotherapists can help you make a personal plan to safely build strength and stamina before surgery. To connect with a Physiotherapist:
|
Eating well gives your body the power to heal. Many people living with frailty do not eat enough calories or protein, which can slow recovery. Check out the Nutrition section for more information about health eating habits before surgery.
A dietitian can help you understand what your current diet may be missing and give you ideas to meet the guidance above. To contact a dietitian::
Healthlink BC - Aging well
Parachute Canada - Fall Prevention
HealthLink Strength and Balance for Life (STABL) Level 1 - Sit
HealthLink Strength and Balance for Life (STABL) Level 2 - Stand
HealthLink Strength and Balance for Life (STABL) Level 3 - Move
HealthLink Strength and Balance for Life (STABL) Videos
Choose to Move - Activity Coaching
HealthlinkBC - Connect with a Certified Exercise Physiologist
HealthlinkBC - Connect with a Dietitian
BCPhysio.org - Find a Physiotherapist
BCDietitians.ca - Find a Dietitian
Being active before surgery helps your heart, lungs, and muscles work better. This makes is easier for your body to heal faster and with fewer problems. If your body is stronger before surgery, you are more likely to:
Even just a few weeks of regular activity can make a big difference!
The Canadian Physical Activity Guidelines and the World Health Organization suggest for adults:
If you are not doing this yet, do not worry! Keep reading for tips and resources to get started.
Being on a wait list for surgery is the perfect time to get prepared! You do not have to join a gym or run a marathon - just move more, starting now. Below are some suggestions to get started.
Improving your strength and balance before surgery is especially helpful for your recovery after surgery. If your medical condition(s) or pain limits your ability to exercise, read on for additional support.
HealthlinkBC's Strength and Balancing Exercise (STABL) programs are a good place to start and are available as follow along videos or PDF handouts below. There are 3 levels - Sit, Stand, and Move. Choose the level that feels right for you and complete it 2 days per week.
STABL - Level 2 - Stand Handout
STABL - Level 3 - Move Handout
A brisk walk (where you can talk, but not sing) is the easiest way to get started or consider other activities like biking, gardening, dancing, swimming or pool walking, or using an elliptical machine or exercise bike.
It is important to do deep breathing exercises immediately after surgery and every hour while in hospital while you are awake. Practicing this ahead of surgery makes it easier to remember and strengthens your lungs for during and after surgery. This lowers your risk of pneumonia and speeds up recovery.
Choose to Move |
A free 3-month program to help you be more active in a way that works for you.As part of the program, you will:
Go to choosetomove.ca/register to join. You will receive a registration package via email with the online and in-person options. |
Clinical Exercise Physiologist |
Clinical Exercise Physiologists are available for free through HealthlinkBC. They can help you with:
Call *811 (*711 for hearing impaired) or connect by email |
Physiotherapist |
Physiotherapists can help you make a personal plan to safely build strength and stamina before surgery. To connect with a Physiotherapist:
|
HealthLink Strength and Balance for Life (STABL) Level 1 - Sit
HealthLink Strength and Balance for Life (STABL) Level 2 - Stand
HealthLink Strength and Balance for Life (STABL) Level 3 - Move
HealthLink Strength and Balance for Life (STABLE) Videos
Choose to Move - Activity Coaching
HealthlinkBC - Connect with a Certified Exercise Physiologist
BCPhysio.org - Find a Physiotherapist
Having surgery is a big event which causes stress on your body systems including your heart. While many patients have surgery without complications, some patients are at higher risk of serious heart problems around the time of surgery, including:
Because your heart can work extra hard during and after surgery, your health care team may check your heart carefully before surgery to learn how well your heart is working and help estimate your potential heart risk.
Knowing your risks helps your health care team plan ahead and take steps to monitor, support, and protect your heart before, during, and after surgery. It also gives you helpful information about your health so you can make decisions about surgery.
Your health care team may:
This information is used to help predict your personal risk of serious heart problems after surgery. Your health care team can explain what the results mean and answer any questions you have. They may also order additional tests or refer you to a specialist.
There are many things you can do to help protect your heart before surgery. These can make recovery smoother and safer.
Healthlink BC - Information on heart health
Cardiac Services BC - Information on heart failure and heart rhythm disorders
It is normal to feel some discomfort after surgery. This is your body's way of saying, "This area is healing, take care."
Trying to take away all discomfort with strong medicines is not possible without causing serious side effects. These medicines (like opioids) can help, but if used too much they can also cause nausea, constipation, trouble breathing, or confusion.
This is why your health care team focuses on function - using different types of medications and other strategies to make sure you can do the things you need to do to recover, such as:
These activities are the most important part of recovery and are the goal of pain management.
Some people are at higher risk of having pain or discomfort that is harder to manage after surgery. This can happen if you already live with chronic pain, if you take opioid medicines regularly, or if you have had challenges with pain control in the past. Your health care team may give you extra information and ask you questions so they can make a plan that is right for you.
Tell your health care team about your health history, medicines you take, and any worries you have about managing discomfort. Together, you will make a safe plan.
The options below require a referral from your health care provider.
An anesthesiologist is a doctor that helps with comfort and safety during and after surgery. Before surgery, you might meet with one to:
If you need more support to stay functional and comfortable while healing from surgery, your health care team is here to help. Together you can plan ahead and find the right tools.
Visit Pain BC or Pain Canada to access free resources for pain management.
Your mind and body work together. Your thoughts can change how your body feels and your body can change how your mind feels. For example, when we feel scared, our heart may beat faster, and when we experience physical pain, we can feel sad. This is called the mind-body connection.
It is normal to feel nervous before surgery, but if strong feelings of worry or sadness last for many days, they can make healing slower.
Good mental health before and after surgery can:
You may have answered some questions about how often you feel worried or sad. These questions help your heath care team understand how you have been feeling so they can offer extra support to help you prepare for surgery and recover from surgery more smoothly.
It is important for you to feel that your mental health is being supported before and after surgery. Simply talking about how you are feeling with someone supportive can reduce your worries. This can be your family doctor, a counsellor, or even a friend or family member. Below are some online and phone resources if you do not have someone you can talk to.
Sometimes life feels busy and stressful. Paying attention to your own thoughts, feelings, and what is happening around you right now can help your mind and body feel better. This is called being mindful. Mindfulness means focusing on the present moment instead of worrying about the past or the future.
It can help to learn a few quick tools to calm yourself down when you feel stressed. Pick one or two that you like best and practice them even on days when you do not feel stressed. That way, they will be easier to use when things feel harder.
| Mindful Breathing |
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| The Physiologic Sigh |
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| Progressive Muscle Relaxation |
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| 5-4-3-2-1 Exercise |
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| Self-Compassion |
|
A healing mindset means using your thoughts to help your body get better. It includes noticing your feelings, thinking in positive ways, and believing you can heal.
How to Cultivate a Healing Mindset:
HealthlinkBC - Mental health information and resources
Help Starts Here - Information about mental wellbeing and access to support in BC
Anxiety Canada - Information about managing anxiety
BounceBack - Online programs for mental wellbeing
Royal College of Anesthestists - Preparing Your Mind Before Surgery
First Nations Health Authority - Indigenous specific resources for wellness
One of the best things you can do before surgery is to focus on eating well. This is really important if you have lost weight without trying or have noticed changes in your appetite in the past week or more.
Food is medicine. When your body gets the right fuel before surgery, recovery is often easier and faster.
Your health care team may ask you a few simple questions to check if you could benefit from extra nutrition support before surgery.
Here are some important things to focus on:

|
Protein Rich Foods (1/4 plate) |
- Help your body build muscle, heal wounds, fight infections, and regain strength for faster healing - Aim for 20-30 grams of protein at every meal (see graphic below for how much protein is in certain foods) - Eggs, meat, chicken, fish, milk, greek or regular yogurt, cheese, cottage cheese, nuts, seeds, soy foods, beans |
|
Vegetables and Fruits (1/2 plate) |
- Give your body the vitamins and minerals to stay strong and heal faster after surgery - Choose a range of colourful vegetables and fruits to get the vitamins, minerals, and antioxidants your body needs - Carrots, peppers, cucumber, celery, broccoli, cauliflower, leafy greens, squash, okra, pumpkin, sweet potato |
|
Whole Grains (1/4 plate) |
- Give your body steady energy to recover from surgery - Quinoa, rice, oats, barley, buckwheat, amaranth, millet, whole grain pasta, bread, crackers |
| Healthy Fats |
- Give your body energy for healing and recovery - Reduce swelling and inflammation - Olive oil, avocado oil, nuts, seeds, fatty fish, avocado |
| Water | - Keeps your body hydrated for faster healing and recovery |

Try these tips:
Omega-3 Fatty Acids
Vitamin D
Iron
A dietitian can help you understand what your current diet may be missing and give you ideas to meet the guidance above. Many patients may benefit from a dietitian's support, especially if you:
To contact a dietitian:
Your health care team will give you clear instructions for when to stop eating and drinking before surgery. Following the instructions is very important to keep you safe and prevent your surgery from being delayed. Do NOT fast for longer than your team tells you - your body heals best when it has enough fuel.
After surgery you may feel tired and have less energy or mobility to cook. Planning ahead, like making and freezing healthy meals, can make recovery easier. Here are some freezer-friendly meal ideas:
Healthlink BC - or call/text *811 to speak to a dietitian
BCdietitians.ca - find a dietitian near you
Food Banks BC - find local food banks for groceries and other essentials
bc.211.ca - or call *211 to find local food banks and supports
When your health care team talks with you about your weight before surgery, the goal is to keep you as safe and health as possible during and after your operation. These conversations are meant to support you, not to judge you.
Just like we talk about heart health with people who have heart problems, we talk about how weight may affect anesthesia (the medicine that puts you to sleep), healing, and recovery from surgery.
Every patient - no matter their body size - deserves respectful, high-quality care. Talking about these health factors like weight helps your care team give you the best support.
Carrying excess body weight can increase the risk of complications during and after surgery such as breathing or heart issues, blood clots, wound infections, slower healing, and longer hospital stays. Not everyone experiences these complications, but as BMI increases, the chances of certain risks may increase.
To reduce your surgical risk, your health care team may:
This helps your health care team create a personal plan for anesthesia, pain control, and recovery.
Doctors often use Body Mass Index (BMI), which compares weight to height, to help identify potential health factors before surgery. BMI can be helpful, but it does not tell the whole story because it does not consider:
This is why your health care team looks at other health measures like waist size, diabetes, heart health, sleep problems, strength, mobility (your ability to move around), and daily function.
You can do a lot to make surgery safer and recovery faster:
We know conversations about weight can be hard. Your health care team is committed to:
Learn more about healthy weight, healthy eating, and physical activity at Healthlink BC or Obesity Canada
Smoking affects how your body heals. Cutting down or quitting smoking before surgery can help you heal faster and lower your chance of having problems during and after surgery.
The sooner you quit, the better your body will heal. By quitting or cutting back now, you can:
If you smoke or use electronic cigarettes (vaping), it is important to know that smoking can increase the risk of problems during and after surgery.
Your health care team may talk with you about this at different times. You may hear it from your surgeon, anesthesiologist, nurse, or pharmacist. This is not meant to judge you. The goal is to make sure everyone who wants help can get the right support.
We want to clearly explain the risks so you can make informed decisions. Even small steps, like cutting back, can make a big difference in your recovery.
Quitting is not just about willpower. Nicotine is addictive and your body may need help to get through withdrawal. It can take time to achieve success. Talk to your pharmacist for recommendations on products and to build a plan to quit before surgery.
Successful quit plans often include:
These treatments reduce cravings and other uncomfortable withdrawal symptoms. They have been shown to double or even triple the chance of success. These can be prescribed by your family doctor, nurse practitioner, or pharmacist - and they may be fully covered by Pharmacare.
Helps eligible BC residents stop using tobacco products by paying for:
Learn more about quitting smoking at Healthlink BC
Access telephone support for smoking cessation at *211
Quit Now is a free quit smoking program delivered by the BC Lung Association that offers free 1:1 coaching, peer support groups, and resources to help you cut back or quit completely.
First Nations Health Authority - Respecting Tobacco
Obstructive sleep apnea (OSA) is when someone's breathing stops or gets very shallow during sleep. This happens because their airway gets blocked when the muscles in the head and neck relax. Many people with OSA do not know they have it.
Sleep apnea can be treated and managing it before and after surgery makes surgery safer and helps you recover faster.
If you have sleep apnea, getting treatment can:
Your health care team will ask you some questions to see if you may have sleep apnea. If they think you may have sleep apnea, a sleep study may be done to check your breathing, heart rate, and oxygen while you sleep. This can be done at home or in a lab.
Talk to your health care team if:
These tips apply whether you have a sleep apnea diagnosis or are waiting for testing:
Learn more about sleep apnea at Healthlink BC
Substances like recreational or illicit drugs, even if used only once in a while, can change how your body reacts to anesthesia and pain mediation. If your health care team knows what drugs you have used and how often, they can create a plan that helps keep you safe and comfortable before, during, and after your procedure.
Avoiding substance (drug) use before surgery may:
Discussing your substance use with your health care team helps them plan safe anesthesia, effective pain control, withdrawal prevention and a smoother transition from hospital to home.
As part of your pre-surgical screening, we ask if you have used any non-prescribed substances (like street drugs, party drugs, or stimulants) in the past 12 months. If you said yes, we may ask more questions about the type, amount, and how often you use - this is only to make your care safer. Your answers are confidential and are used only as part of your health history.
Even if you used a substance just once in the last 12 months, we are sharing this information so you can make informed decisions and understand how it may affect your surgical care. This information supports conversations with your health care team, but does not replace them.
If you use non-prescribed substances (drugs):
If you take methadone, Suboxone, or Kadian, here is what you need to know:
If you take Naltrexone or Contrave, you may need special instructions. Ask your health care team about when to stop and restart these medications.
If you use substances daily or in large amounts, stopping suddenly can cause withdrawal symptoms. Sometimes withdrawal can be dangerous, which is why a slow, supported taper is often recommended. This helps keep you safe while reducing your use.
If needed, your health care team may refer you to:
Because some drugs may be contaminated with dangerous substances like fentanyl, it is important to:
Learn more about mental health and substance use at HealthLinkBC
Visit Help Starts Here for substance use support and resources
First Nations Health Authority Information About Opioid Agonist Therapy
24-Hour BC Alcohol and Drug Info Line: 1-800-663-1441
After surgery, your body needs time to rest, heal, and regain strength. Having support at home can make your recovery smoother, safer, and help you avoid complications or delays in leaving the hospital.
The amount of help you will need depends on the type of surgery you are having. For many procedures - especially same-day (daycare) surgeries - you must have a responsible adult to take you home. This person should:
During your pre-surgical screening, you may be asked:
These plans must be in place before your surgery day to ensure a safe discharge home. If you answered no to either of these questions, we will follow-up to ensure you are prepared for surgery.
Traditional criteria for discharge after day surgery includes having a responsible adult to take you home. Here are some important things to organize ahead of time:
There are options available to help you get the care you need:
Before your surgery, it is important to take some time to think about what matters most to you and the kind of care you would want if a serious emergency happened while you are in the hospital. This includes the kind of care, treatments, and ways of living that you would or would not want.
Sometimes you may not be able to speak for yourself. Writing down your wishes helps your health care team and loved ones understand what is most important to you. This way, your care matches your values. Clear wishes can also guide your loved ones and give them comfort when making decisions on your behalf.
These conversations are not meant to scare you. They are meant to help in several ways:
Your health care team might ask about what is important to you, what you want your life to look like after surgery, and what kinds of care you would or would not want. This may be called a "goals of care" conversation. These conversations are normal and routine before surgery.
They are especially common when:
If your health care team does not start this conversation with you, you can share your advance care plan or tell them what matters most to you.
Here are a few steps you can take now:
Before surgery, your doctor (often your surgeon or anesthesiologist) will complete a Medical Orders for Scope of Treatment (MOST). This order tells the health care team what treatments you want if your health gets worse during or after surgery.
Some treatments included in a MOST order are::
Your MOST order can be updated at anytime if your health or wishes change. It will always reflect the most recent conversation.
The graphic and video linked below can help you make decisions about Cardiopulmonary Resuscitation (CPR).

Watch this Video on Preparing Patients and Their Families for Shared Decision-Making About Cardio-Pulmonary Resuscitation