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How to Suction a Tracheostomy (Trach)

What is a tracheostomy (trach)?

A tracheostomy (trach) is a small opening that goes through the front of the neck into the windpipe (trachea). This opening helps a person breathe if their airway (breathing passage) is narrowed or blocked. The opening in the skin over the windpipe is called a stoma. A small plastic tube called a trach tube is placed through the stoma to help the person breathe.


Watch this video to learn how to suction a tracheostomy (trach).

Benefits of suctioning a trach

If your child has a trach, mucus can build up in the tube. This can make it hard for your child to breathe. Suctioning is a process to remove mucus from the trach so that your child can breathe easier.

When to suction a trach

Suction your child’s trach tube every morning and evening. Also suction when your child shows any of these signs:

  • Coughing
  • Noisy breathing
  • Mucus that you can see in the trach tube
  • Acting restless
  • Trouble breathing
  • Pale or bluish skin color

Always follow the instructions given by your respiratory therapist.

Supplies needed to suction a trach

  • Suction kit (contains sterile gloves and suction catheter)
  • Suction machine
  • Normal saline vials (if applicable)
  • Self-inflating bag 
  • Emergency suction
  • Cup of water (if applicable)
  • Emergency supplies, including same-size and size-smaller trach tube and obturator. An obturator is part of the device that helps guide the trach tube in the airway. 
  • Keep emergency supplies available at all times.

How to suction a trach

After you suction the trach

  • Watch your child to see if more suctioning is needed. It might take 2–3 times to clear the mucus.
  • If the mucus is thick or looks dry, you can put 2–3 drops of saline down the trach tube. Then, give your child 2 or more breaths with the self-inflating bag before suctioning again.
  • Remove the catheter from the suction tubing to clean or throw away. You can clear the suction tubing by placing the end in a cup of water.
  • Turn off the suction machine.
  • Wash your hands.

Safety reminders for suctioning a trach

A person measuring catheter suction against the depth of obturator length.

Measure the catheter suction depth against the obturator length.

Always follow the instructions given by your respiratory therapist. 

Important: If your child’s trach tube size changes, the pre-measured or shallow suctioning depth will change. Make sure you measure the obturator any time a tube size changes. 

If shallow or pre-measured suctioning does not clear the mucus:

  1. Gently insert the suction catheter until you feel resistance.
  2. Pull the catheter back 1/4 inch.
  3. Apply suction.

This process is called deep suctioning. Use it only when shallow suctioning does not clear the mucus.

If you have questions about suctioning a trach, talk to your child’s respiratory therapist.

When to call your care team

Call your care team if:

  • The mucus smells foul.
  • Your child looks ill.
  • You are unable to remove mucus after deep suctioning.
  • Your child struggles to get air in and out after suctioning.
  • You have questions about how to suction the trach.
  • Bright red blood comes out of the trach site and does not stop flowing.

Key points about suctioning a trach

  • Suctioning mucus from the trach tube helps your child breathe easier.
  • Suction your child’s trach every morning, every evening, and whenever your child shows signs of having too much mucus.
  • Follow the steps for suctioning the trach as instructed.
  • If shallow suctioning does not clear all the mucus, you might need to try deep suctioning.
  • Talk to your child’s respiratory therapist if you have questions about suctioning a trach.


Reviewed: October 2023