Outpatient Surgery: A Complete Pre-Op Checklist
An outpatient surgery is still surgery, even when you go home the same day. The pre-op steps are what separate a smooth experience from a stressful one. Here is the complete checklist patients wish they had had earlier.
Two weeks before
This is the window where small habit changes pay off. If you smoke or vape, every day of cessation before surgery improves wound healing and lowers complication risk. If you drink alcohol regularly, slowing down now matters because alcohol affects how the liver processes anesthesia.
Make a list of every medication you take — prescription, over-the-counter, vitamin, supplement, herbal — and bring it to your pre-op visit. Do not edit the list. Things people forget to mention regularly include fish oil, vitamin E, turmeric, ginkgo, melatonin, and CBD products. Several of these affect bleeding and need to be paused.
One week before
Your surgical team will give you a stop-date for medications that affect bleeding — most commonly aspirin, ibuprofen, naproxen, and certain blood thinners. Follow the date precisely. Do not stop a prescribed blood thinner on your own; if you take one for a heart condition or a clot history, your doctor coordinates the timing with the surgical team.
This is also the week to organize the practical side: confirm your ride home (you cannot drive yourself, and a rideshare alone will not work because someone has to receive discharge instructions), arrange for an adult to stay with you the first 24 hours, and stock up on whatever your post-op diet allows.
Two days before
Most surgical centers will call you with your arrival time and confirm any prescriptions you should pick up before the day of surgery. If you have not heard from us by the day before, call. The pharmacy line for post-op medications can be slow, and having pain medication waiting at home is much better than picking it up while still groggy.
Pack your bag now. You want loose, comfortable clothing — particularly something you can put on without raising your arms above shoulder level if your procedure involves the upper body. Slip-on shoes. A small bottle of water. Your ID, insurance card, and any forms the surgical center sent you. Nothing valuable.
The night before
The fasting rule is the one most patients ask about. The standard is no food after midnight, and clear liquids (water, black coffee, plain tea, clear juice) up to two hours before arrival unless your surgeon specifies otherwise. The reason is not arbitrary: anesthesia relaxes the muscles that keep stomach contents from going where they should not, and a full stomach during induction is a real complication.
"After midnight" sometimes gets interpreted loosely. It is not. Even a small snack at 2 AM can postpone or cancel your surgery. If you have diabetes and take insulin, your endocrinologist or surgeon should give you specific morning-of instructions — do not improvise.
Shower the night before with the cleanser the surgical center provided. If you were given a chlorhexidine wipe set, use it the night before and the morning of. Do not apply lotion, perfume, or makeup that morning. Remove nail polish from at least one finger if your surgical team uses pulse oximetry on the finger.
Morning of surgery
Arrive at the time given, not earlier — pre-op rooms have limited space and arriving an hour early does not move you up. Wear what you packed. Leave jewelry, watches, and contact lenses at home. Bring glasses if you wear them; they can be set aside in pre-op and returned to you in recovery.
Once you check in, you will go through registration, then to a pre-op bay where you change into a gown, get an IV started, and meet with the anesthesiologist and surgeon for final confirmations. Use this time to ask your last questions. The anesthesiologist will review your medical history and the planned anesthesia approach (general, regional, MAC) and ask you to confirm allergies and the procedure site.
What to expect after
You will wake up in recovery. Time in recovery varies by procedure — some are an hour, some are several. Family is usually brought back once you are alert and stable. Discharge happens when the team confirms your pain is controlled, you can keep liquids down, you can use the bathroom (for some procedures), and your ride is present.
Your discharge nurse will go through written instructions with both you and your designated adult. Pay attention. The most common reason patients call back the next day is that the medication schedule was not clear when they left. If anything in the instructions is fuzzy, ask before walking out the door.
The 24-hour rule
For 24 hours after general anesthesia or sedation, do not drive, do not sign legal documents, do not make important decisions, do not drink alcohol, and do not be alone. The grogginess that lifts in an hour is not the same as full cognitive function returning. Most patients underestimate this.
Call us if you develop fever above 101 degrees Fahrenheit, uncontrolled bleeding, severe pain not responding to prescribed medication, persistent vomiting, or signs of infection at the surgical site. The number on your discharge sheet is staffed 24 hours, and using it is what it is for.