What Happens at Your Pre-Op Appointment

A pre-op appointment is your last checkup before surgery

A pre-operative (pre-op) appointment is a medical visit scheduled days or weeks before your planned surgery. During this appointment, your surgical team checks that you are physically ready for the procedure, reviews your medical history, and answers questions about what to expect. The appointment usually takes 30 minutes to an hour, though it can run longer if additional tests are needed.

The main goal is to catch any health issues that could complicate surgery — things like uncontrolled blood pressure, infections, or medication interactions — before you reach the operating room. Your surgeon, anesthesiologist, or a nurse practitioner will examine you, order any final tests, and give you written instructions for the day of surgery.

Key Takeaways

• Bring your insurance card, photo ID, a list of all current medications (including over-the-counter and supplements), and any recent test results or medical records from other doctors.
• Your surgical team will take your blood pressure, heart rate, and temperature, and may order blood work or an EKG depending on your age and the type of surgery.
• You will receive written instructions about when to stop eating and drinking before surgery, which medications to take or skip, and what to wear on surgery day.
• This is the time to ask about pain management after surgery, how long recovery will take, and when you can return to normal activities.
• If you have had a bad reaction to anesthesia before, or if you are pregnant or think you might be, tell your surgical team at this appointment.

What the surgical team will ask and examine

Your surgeon or their staff will start by reviewing your complete medical history. They will ask about past surgeries, allergies (especially to medications or latex), current medications, supplements, and any health conditions like diabetes, heart disease, or sleep apnea. Be honest about alcohol use, smoking, and any recreational drugs — anesthesiologists need this information to keep you safe.

A nurse will take your vital signs: blood pressure, heart rate, temperature, and breathing rate. You may be asked to walk or move in certain ways so the team can assess your general fitness for surgery. If you have had problems with anesthesia in the past — nausea, a slow heart rate, or a severe reaction — mention it now. The same goes if you are pregnant, breastfeeding, or think you might be pregnant.

Your surgeon will also examine the area where surgery will happen. If you are having a joint replaced or a skin lesion removed, they will look at that spot, take measurements if needed, and mark the surgical site with a pen so there is no confusion on surgery day.

Tests you may have done at this appointment

Whether you need tests depends on your age, the type of surgery, and your health history. A routine surgery on a healthy 30-year-old may need no tests at all. A major surgery or a patient over 65 will almost always have blood work and possibly an EKG (heart rhythm test).

Common pre-op tests include a complete blood count (CBC) to check for anemia or infection, a metabolic panel to check kidney and liver function, and a blood type and screen in case you need a transfusion. An EKG records your heart's electrical activity and takes about five minutes. A chest X-ray may be ordered if you have lung disease or a significant cough. If you are having spinal anesthesia, you may need an ultrasound to map the bones in your spine.

Some tests are done at the pre-op appointment itself; others are ordered and done at a lab or imaging center in the days before surgery. Ask which tests you need and where to have them done. If results come back abnormal, your surgeon's office will contact you — do not assume everything is fine if you do not hear back.

Instructions for the day of surgery

You will receive written pre-op instructions, usually called "NPO" (nothing by mouth) instructions. These tell you exactly when to stop eating and drinking before surgery. For most surgeries under general anesthesia, you must stop eating solid food 6 to 8 hours before and stop drinking clear liquids 2 hours before. If you eat or drink after that time, your surgery may be postponed because food in your stomach raises the risk of vomiting during anesthesia.

The instructions will also say which medications to take the morning of surgery and which to skip. Blood pressure and heart medications are usually taken with a small sip of water. Blood thinners like warfarin or aspirin are often stopped several days before, but do not stop any medication without explicit instruction — call your surgeon's office if you are unsure.

You will be told what to wear: usually loose, comfortable clothing without metal zippers or buttons (because of the monitors attached to your chest). Leave jewelry, piercings, nail polish, and makeup at home. Arrange for someone to drive you home, because anesthesia impairs your judgment and reflexes for hours after surgery, even if you feel alert.

Questions to ask your surgical team

Use this appointment to ask about pain control after surgery. Will you receive oral pain medication, IV medication, or a nerve block? How often can you take it? What side effects should you expect? Ask how long the surgery itself usually takes and how long you will be in recovery before going home.

Ask when you can shower or bathe, when stitches or staples come out (if applicable), and when you can return to work, exercise, or driving. If you have a physically demanding job, ask when you can go back. Ask what signs of infection or complications should send you to the emergency room — fever, excessive bleeding, severe swelling, or chest pain, for example.

If you are nervous about anesthesia, ask the anesthesiologist or nurse to explain what will happen. You will be given medication to relax you before the procedure, then put to sleep. You will not feel pain during surgery, and you will not remember the procedure. Ask about any risks specific to your health or the type of anesthesia planned.

What to bring to your pre-op appointment

Bring your insurance card and a photo ID. Bring a written list of all medications and supplements you take, including the dose and how often you take them — do not rely on memory. If you have had recent blood work or imaging done at another facility, bring those records or ask your doctor's office to request them beforehand.

If you have had a previous surgery or anesthesia, bring any records about how it went, especially if there were complications. If you wear glasses or hearing aids, bring them so you can communicate clearly during the appointment. Wear comfortable clothing that allows easy access to your arms for blood pressure checks.

What happens if the appointment finds a problem

If your blood pressure is very high, your blood work shows a serious abnormality, or you report a new symptom like chest pain or shortness of breath, your surgery may be postponed. This is not a failure — it is the system working as intended. Your surgeon will refer you to your primary care doctor or a specialist to address the issue first.

Minor issues like a mild infection or slightly low blood count may be managed with medication or a brief delay. Your surgical team will tell you whether surgery can proceed as scheduled or needs to be rescheduled. If surgery is postponed, ask when it can be rebooked and whether you need another pre-op appointment before the new date.

Frequently Asked Questions

Can I take my regular medications the morning of surgery?

Most blood pressure and heart medications should be taken with a small sip of water the morning of surgery. Blood thinners, diabetes medications, and some others must be skipped. Your pre-op instructions will specify which to take and which to skip. If you are unsure about any medication, call your surgeon's office the day before surgery — do not guess.

What if I get sick with a cold or flu before my pre-op appointment?

Call your surgeon's office and let them know. A minor cold may not delay surgery, but a fever, severe cough, or flu symptoms might. Your surgical team needs to know because respiratory infections increase the risk of complications during anesthesia. They will decide whether to proceed or reschedule.

Do I need someone to come with me to the pre-op appointment?

You do not need someone present for the appointment itself, but it can be helpful to bring a family member or friend who can take notes and help you remember instructions. You will definitely need someone to drive you home after surgery, so it is good to confirm their availability at this appointment.

What if I have questions after the pre-op appointment?

Write down your questions and call your surgeon's office. Do not wait until the day of surgery to ask. Most offices have a nurse line you can reach during business hours, and many have an on-call number for urgent questions. If you develop new symptoms or feel unwell in the days before surgery, contact your surgeon right away.

Can I eat or drink anything the night before surgery?

Your written pre-op instructions will specify the exact cutoff times. Generally, you can eat a normal dinner the night before, but nothing after midnight or a set time. You may be allowed clear liquids (water, apple juice, black coffee) until 2 hours before surgery. Follow the instructions exactly — eating after the cutoff time can force your surgery to be postponed.