Instructions Before Your Radiation Therapy Appointment With Anesthesia

Time to Read: About 2 minutes

This information explains how to get ready for your radiation therapy simulation or treatment if you’re getting anesthesia. Anesthesia is medicine to make you sleep during a procedure.

Follow these instructions if your healthcare provider told you that you’ll get anesthesia during your radiation therapy simulation or treatment.

Before your appointment

Take devices off your skin

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

  • Continuous glucose monitor (CGM)
  • Insulin pump

If you use one of these, ask your radiation oncologist if you need to take it off. If you do, make sure to bring an extra device to put on after your simulation or treatment.

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 appointment. 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 appointment.

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.

Agencies in New YorkAgencies in New Jersey

Instructions for eating and drinking before your appointment

  • Stop eating 8 hours before your scheduled arrival time.
  • 8 hours before your scheduled arrival time, do not eat or drink anything except the clear liquids listed below. You can keep having them until 2 hours before your scheduled arrival time. Here is a list of what you can have:
    • Water.
    • Soda.
    • Clear juices, such as lemonade, apple, and cranberry juices. Do not drink orange juice or juices with pulp.
    • Black coffee or tea (without any type of milk or creamer).
    • Sports drinks, such as Gatorade®.
    • ClearFast or Ensure® Pre-Surgery drink.
    • Gelatin, such as Jell-O®.
  • Stop drinking 2 hours before your scheduled arrival time. This includes water.

Contact information

If you have questions or concerns, talk with a member of your radiation therapy team. You can reach them Monday through Friday from to

After , during the weekend, and on holidays, call 212-639-2000. Ask for the radiation oncologist on call.

Last Updated

Saturday, February 3, 2024

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