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Emergency G-tube (Feeding Tube) Replacement

What is a G-tube?

A G-tube (gastrostomy tube) delivers liquid food through a small, hollow tube to your child’s stomach when they can’t take food by mouth. This is known as enteral nutrition.

The G-tube enters your child’s stomach through a small cut in the skin (stoma). The G-tube is held in place by a balloon filled with sterile water. The balloon rests inside the stomach. The balloon keeps the G-tube from sliding out of the body. A small disc rests outside the belly to hold the G-tube steady.

Gastrostomy Tube and Gastrostomy-jejunostomy tube

The G-tube enters the stomach through an opening in the body known as the stoma. The G-tube delivers liquid nutrition to your child when they cannot take food by mouth.

If your child’s G-tube is pulled out by accident, the stoma can close quickly. You must replace the G-tube right away. It is important to know how to replace the G-tube to keep the stoma from closing. Replace the G-tube only if you have been trained to do so.

Always follow the instructions.

Supplies needed

Supplies needed for a G-tube replacement

Make a kit with these supplies before an emergency happens. Always keep it with your child. Do not use expired supplies.

  • 2 catheters: 1 catheter the same size as your child’s current G-tube and 1 smaller catheter.
  • 1 G-tube the same size and length of the G-tube your child has now. 
  • 1 rubber band
  • 1 packet of water-soluble lubricant. Do not use other lubricants such as Vaseline®.
  • 1 (60 mL) catheter-tipped syringe
  • 1 (10 mL) slip-tip syringe
  • 1 packet of tape
  • 1 packet of sterile gauze dressing
  • Sterile or distilled water (do not use tap water)

How to replace a G-tube in an emergency

If the G-tube was placed less than 6 weeks ago:

If the G-tube was placed more than 6 weeks ago:

When to call your care team

  • If you cannot put a device in the stoma to keep it open, take your child to the nearest hospital or doctor’s office right away to have the G-tube replaced.
  • Call your care team when you have done an emergency replacement of a G-tube.

Key points about changing a G-tube

  • Make an emergency kit with all the supplies you need before an emergency happens.
  • Follow your care team’s instructions on how to do an emergency G-tube replacement. 
  • If you cannot keep the stoma open or insert a new G-tube or catheter, go to the hospital or doctor’s office right away to have the G-tube replaced.
  • Contact your care team if your child’s G-tube fell out and you replaced it. Do not use the G-tube for feeding until your care team can check to see if it is in the right place.


Reviewed: January 2024