Procedures and treatments

Preparing a child for a procedure or treatment can be an anxious occasion. Great Ormond Street Hospital have produced a number of factsheets to help explain what will happen and what to expect.

Procedures and treatments search

Search for information on procedures and treatments at Great Ormond Street Hospital.

Colonic transit (pellet) study

A colonic transit study is a test that shows how quickly food passes through the digestive system. This may also be called a pellet study.  It starts when you give your child some pellets to swallow on three consecutive days. On the fourth day, they will need to come into hospital for an x-ray. If there are some pellets seen on this x-ray you might be asked to return for a second x-ray on day 6. This information sheet from Great Ormond Street Hospital (GOSH) explains about the transit study test and what to expect when your child has one.

Clinical photography in the department of Medical Illustration at GOSH

This page explains about the clinical photography service in the department of Medical Illustration at Great Ormond Street Hospital (GOSH), why your doctor might ask for your child’s photograph to be taken and what to expect. It also describes the different ways that we use clinical photographs and how you can decide which uses you will or will not allow. 

Bone anchored hearing aids (BAHA)

A bone anchored hearing aid (BAHA) is similar to other hearing aids, but instead of being inserted into the ear canal or held behind the ear, it is attached to a soft band worn on the head or fixed to a metal implant inserted into the skull. This page from Great Ormond Street Hospital (GOSH) describes the type of BAHAs used at GOSH, what is involved in fitting them and what to expect during treatment.

Your child is having a CT scan using ‘feed and wrap’ technique

A CT scan (Computed Tomography) uses x-rays and computers to take pictures of the internal structures of your child’s body. This information sheet from Great Ormond Street Hospital (GOSH) explains about having a CT scan at, how to prepare for it and what care your child will need afterwards.

Lung function tests

Lung Function tests are carried out by respiratory physiologists in our Lung Function Unit. They aim to measure how well your child’s lungs are working and how well oxygen we breathe in from the air moves to our blood and waste carbon dioxide is breathed out of the body. They are often used to monitor lung function over time. We aim to make the tests as fun as possible for children and young people. This information sheet from Great Ormond Street Hospital (GOSH) describes what will happen when your child comes for lung function testing.