Instructions for Interventional Radiology Procedures

This information will help you get ready for your interventional radiology procedure at Memorial Sloan Kettering (MSK).

Before Your Procedure

Ask about your medicines

You may need to stop taking some of your usual medicines before your procedure. Talk with your healthcare provider about which medicines are safe for you to stop taking.

We’ve included some common examples below, but there are others. Make sure your care team knows all the prescription and over-the-counter medicines you take. A prescription medicine is one you can only get with a prescription from a healthcare provider. An over-the-counter medicine is one you can buy without a prescription.

‌ It is very important to take your medicines the right way in the days leading up to your procedure. If you don’t, we may need to cancel your procedure.
 

Blood thinners (anticoagulants)

A blood thinner is a medicine that changes the way your blood clots.

If you take a blood thinner, ask the healthcare provider doing your procedure what to do before your procedure. They may tell you to stop taking the medicine a certain number of days before your procedure. This will depend on the type of procedure you’re having and the reason you’re taking a blood thinner.

Examples of common blood thinners are listed below. There are others, so be sure your care team knows all the medicine you take. Do not stop taking your blood thinner without talking with a member of your care team.

Read How To Check if a Medicine or Supplement Has Aspirin, Other NSAIDs, Vitamin E, or Fish Oil. It has information about medicines you must avoid before your procedure.

Diabetes medicines

If you take insulin or other diabetes medicines, ask the healthcare provider who prescribes it what to do before your procedure. You may need to stop taking it or take a different dose (amount) than usual. You may also need to follow different eating and drinking instructions before your procedure. Follow your healthcare provider’s instructions.

Your care team will check your blood sugar levels during your procedure.

Diuretics (water pills)

A diuretic is a medicine that helps control fluid buildup in your body. Hydrochlorothiazide (Microzide^®) and furosemide (Lasix^®) are examples of diuretics.

If you take a diuretic, ask the healthcare provider doing your procedure what to do before your procedure. You may need to stop taking it the day of your procedure.

Take devices off your skin

You may wear certain devices on your skin. Before your scan or procedure, device makers recommend you take off your:

• Continuous glucose monitor (CGM)
• Insulin pump

Talk with your healthcare provider about scheduling your appointment closer to the date you need to change your device. Make sure you have an extra device with you to put on after your scan or procedure.

You may not be sure how to manage your glucose while your device is off. If so, before your appointment, talk with the healthcare provider who manages your diabetes care.

Arrange for someone to take you home

You must have a responsible care partner take you home after your procedure. A responsible care partner is someone who can help you get home safely. They should be able to contact your care team if they have any concerns. Make sure to plan this before the day of your procedure.

If you don’t have a responsible care partner to take you home, call one of the agencies below. They’ll send someone to go home with you. There’s a charge for this service, and you’ll need to provide transportation. It’s OK to use a taxi or car service, but you still need a responsible care partner with you.

Tell us if you’re sick

If you get sick (including having a fever, cold, sore throat, or flu) before your procedure, call your IR doctor. You can reach them Monday through Friday from 9 a.m. to 5 p.m.

After 5 p.m., during the weekend, and on holidays, call 212-639-2000. Ask for the Interventional Radiology fellow on call.

Note the time of your appointment

A staff member will call you 2 business days before your procedure. If your procedure is scheduled for a Monday, they’ll call you on the Thursday before. They’ll tell you what time to get to the hospital for your procedure. They will also remind you where to go.

If you don’t get a call by noon (12 p.m.) on the business day before your procedure, call 646-677-7001. If you need to cancel your procedure for any reason, call the healthcare provider who scheduled it for you.

The Day Before Your Procedure

Instructions for eating

‌ 
Stop eating at midnight (12 a.m.) the night before your surgery. This includes hard candy and gum.

If your healthcare provider told you to stop eating earlier than midnight, follow their instructions. Some people need to fast (not eat) for longer before their surgery.

The Day of Your Procedure

Instructions for drinking

Between midnight (12 a.m.) and 2 hours before your arrival time, only drink the liquids on the list below. Do not eat or drink anything else. Stop drinking 2 hours before your arrival time.

• Water.
• Clear apple juice, clear grape juice, or clear cranberry juice.
• Gatorade or Powerade.
• Black coffee or plain tea. It’s OK to add sugar. Do not add anything else.
  • Do not add any amount of any type of milk or creamer. This includes plant-based milks and creamers.
  • Do not add honey.
  • Do not add flavored syrup.

If you have diabetes, pay attention to the amount of sugar in these drinks. It will be easier to control your blood sugar levels if you include sugar-free, low-sugar, or no added sugar versions of these drinks.

It’s helpful to stay hydrated before surgery, so drink if you are thirsty. Do not drink more than you need. You will get intravenous (IV) fluids during your surgery.

‌ 
Stop drinking 2 hours before your arrival time. This includes water.

Things to remember

• Take only the medications your healthcare provider told you to take the morning of your procedure. Take them with a few sips of water.
• Don’t apply cream or petroleum jelly (Vaseline®). You can use deodorant and light moisturizers.
• Don’t wear eye makeup.
• Remove any jewelry, including body piercings.
• Leave all valuables, such as credit cards and jewelry, at home.
• If you wear contact lenses, wear your glasses instead, if possible. If you don’t have glasses, bring a case for your contacts.

What to bring with you

• A list of the medications you take at home.
• Medications for breathing problems (such as inhalers), medications for chest pain, or both.
• A case for your glasses or contacts.
• Your Health Care Proxy form and other advance directives, if you completed them.
• If you use a CPAP or BiPAP machine to sleep at night, bring your machine with you, if possible. If you can’t bring your machine with you, we’ll give you one to use while you’re in the hospital.

What to expect

You’ll be asked to say and spell your name and birth date many times. This is for your safety. People with the same or a similar name may be having a procedure on the same day.